TY  - CONF
AU  - Kaluđerović, Lazar
AU  - Tomić, Zorica
AU  - Bogosavljević, Jelena
AU  - Životić, Ljubomir
AU  - Milošević, Maja
PY  - 2022
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6494
AB  - Environmental problems related to the application of herbicides are causing a concern due to their increasing presence in soil, groundwater and surface water. Numerous methods have been developed in order to reduce herbicide mobility and protect natural water resources. The results presented in this paper show the interaction of herbicide S- metolachlor with inorganic and organically modified montmorillonite from Bogovina (Boljevac municipality, Serbia). Clay sample from Bogovina represents Ca-Na montmorillonite with a small amount of quartz, cristobalite and carbonate minerals. Organic montmorillonites were obtained after modification with different concentrations of organic complex (HDTMA and PTMA), whereas inorganic modification was performed with 1M NaCl solution. The interaction between minerals and herbicide was monitored using infrared spectroscopy. IR bands observed in the inorganic modified montmorillonite (Na-montmorillonite) are typical for smectites with a high Al content in the octahedron position.
The intercalation of HDTMA+ cations into the interlayer space produces redshift of the IR bands that originate from the vibrations of the adsorbed water, as a consequence of the hydrogen bond strength reduction in HDTMA-montmorillonite. Also, the intensity of these bands decreases significantly with the increasing concentration of HDTMA+ cation. All these changes are related to the decreasing of the water content in the interlayer space by increasing the content of HDTMA. The occurrence of the stretching CH2 vibrations is generally the main difference in the spectrum of HDTMA modified montmorillonite in comparison with the spectrum of inorganically modified montmorillonite. The wavenumber, intensity and width of these bands are sensitive to conformation in hydrocarbon chains. After the organic modification of the montmorillonite with the PTMA complex, stretching vibrations of the phenyl ring occurred.
Analysis of FTIR spectroscopy data showed that the hydrogen bond is one of the most important mechanisms that occur between Na-montmorillonite and S-metolachlor. Comparing the FTIR spectra of herbicides before and after the sorption, it can be concluded that the carbonyl group participate in the binding process. Sorption of S- metolachlor on HDTMA-montmorillonites causes the redshift of the C=O absorption band. Shifting to lower wavenumbers and joining with the deformation vibration band of water indicates that the C=O group participated in the formation of a bond with the montmorillonite. Sorption of S-metolachlor molecules on PTMA-montmorillonite takes place through the interaction between the aromatic benzene ring of S-metolachlor and the aromatic benzene ring of the organic complex (π-π bonds). Also, the formation of a hydrogen bond occurs between the molecules of S-metolachlor and the molecules of water that are in the interlayer space and/or oxygen on the surface of the tetrahedral sheet of the montmorillonite.
PB  - Serbian Society of Soil Science
C3  - 3rd International and 15th National Congress of Serbian Society of Soil Science: Soils for Future under Global Challenges, Sokobanja, Serbia, 21-24 September 2021
T1  - FTIR SPECTROSCOPIC STUDY OF S-METOLACHLOR SORPTION ON INORGANIC AND ORGANICALLY MODIFIED MONTMORILLONITE FROM BOGOVINA
EP  - 337
SP  - 329
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6494
ER  - 

@conference{
author = "Kaluđerović, Lazar and Tomić, Zorica and Bogosavljević, Jelena and Životić, Ljubomir and Milošević, Maja",
year = "2022",
abstract = "Environmental problems related to the application of herbicides are causing a concern due to their increasing presence in soil, groundwater and surface water. Numerous methods have been developed in order to reduce herbicide mobility and protect natural water resources. The results presented in this paper show the interaction of herbicide S- metolachlor with inorganic and organically modified montmorillonite from Bogovina (Boljevac municipality, Serbia). Clay sample from Bogovina represents Ca-Na montmorillonite with a small amount of quartz, cristobalite and carbonate minerals. Organic montmorillonites were obtained after modification with different concentrations of organic complex (HDTMA and PTMA), whereas inorganic modification was performed with 1M NaCl solution. The interaction between minerals and herbicide was monitored using infrared spectroscopy. IR bands observed in the inorganic modified montmorillonite (Na-montmorillonite) are typical for smectites with a high Al content in the octahedron position.
The intercalation of HDTMA+ cations into the interlayer space produces redshift of the IR bands that originate from the vibrations of the adsorbed water, as a consequence of the hydrogen bond strength reduction in HDTMA-montmorillonite. Also, the intensity of these bands decreases significantly with the increasing concentration of HDTMA+ cation. All these changes are related to the decreasing of the water content in the interlayer space by increasing the content of HDTMA. The occurrence of the stretching CH2 vibrations is generally the main difference in the spectrum of HDTMA modified montmorillonite in comparison with the spectrum of inorganically modified montmorillonite. The wavenumber, intensity and width of these bands are sensitive to conformation in hydrocarbon chains. After the organic modification of the montmorillonite with the PTMA complex, stretching vibrations of the phenyl ring occurred.
Analysis of FTIR spectroscopy data showed that the hydrogen bond is one of the most important mechanisms that occur between Na-montmorillonite and S-metolachlor. Comparing the FTIR spectra of herbicides before and after the sorption, it can be concluded that the carbonyl group participate in the binding process. Sorption of S- metolachlor on HDTMA-montmorillonites causes the redshift of the C=O absorption band. Shifting to lower wavenumbers and joining with the deformation vibration band of water indicates that the C=O group participated in the formation of a bond with the montmorillonite. Sorption of S-metolachlor molecules on PTMA-montmorillonite takes place through the interaction between the aromatic benzene ring of S-metolachlor and the aromatic benzene ring of the organic complex (π-π bonds). Also, the formation of a hydrogen bond occurs between the molecules of S-metolachlor and the molecules of water that are in the interlayer space and/or oxygen on the surface of the tetrahedral sheet of the montmorillonite.",
publisher = "Serbian Society of Soil Science",
journal = "3rd International and 15th National Congress of Serbian Society of Soil Science: Soils for Future under Global Challenges, Sokobanja, Serbia, 21-24 September 2021",
title = "FTIR SPECTROSCOPIC STUDY OF S-METOLACHLOR SORPTION ON INORGANIC AND ORGANICALLY MODIFIED MONTMORILLONITE FROM BOGOVINA",
pages = "337-329",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6494"
}

Kaluđerović, L., Tomić, Z., Bogosavljević, J., Životić, L.,& Milošević, M.. (2022). FTIR SPECTROSCOPIC STUDY OF S-METOLACHLOR SORPTION ON INORGANIC AND ORGANICALLY MODIFIED MONTMORILLONITE FROM BOGOVINA. in 3rd International and 15th National Congress of Serbian Society of Soil Science: Soils for Future under Global Challenges, Sokobanja, Serbia, 21-24 September 2021
Serbian Society of Soil Science., 329-337.
https://hdl.handle.net/21.15107/rcub_agrospace_6494

Kaluđerović L, Tomić Z, Bogosavljević J, Životić L, Milošević M. FTIR SPECTROSCOPIC STUDY OF S-METOLACHLOR SORPTION ON INORGANIC AND ORGANICALLY MODIFIED MONTMORILLONITE FROM BOGOVINA. in 3rd International and 15th National Congress of Serbian Society of Soil Science: Soils for Future under Global Challenges, Sokobanja, Serbia, 21-24 September 2021. 2022;:329-337.
https://hdl.handle.net/21.15107/rcub_agrospace_6494 .

Kaluđerović, Lazar, Tomić, Zorica, Bogosavljević, Jelena, Životić, Ljubomir, Milošević, Maja, "FTIR SPECTROSCOPIC STUDY OF S-METOLACHLOR SORPTION ON INORGANIC AND ORGANICALLY MODIFIED MONTMORILLONITE FROM BOGOVINA" in 3rd International and 15th National Congress of Serbian Society of Soil Science: Soils for Future under Global Challenges, Sokobanja, Serbia, 21-24 September 2021 (2022):329-337,
https://hdl.handle.net/21.15107/rcub_agrospace_6494 .

TY  - JOUR
AU  - Kaluđerović, Lazar
AU  - Tomić, Zorica
AU  - Đurović-Pejčev, Rada
AU  - Životić, Ljubomir
PY  - 2021
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6777
AB  - The adsorption behaviour of the herbicide clomazone on inorganic and organically modified montmorillonite from the Bogovina deposit in Serbia was investigated. Montmorillonite was modified first with NaCl and then with organic complexes such as hexadecyltrimethylammonium bromide (HDTMA) and phenyltrimethylammonium chloride (PTMA). Changes in the surface properties and morphology of the montmorillonite before and after the modification with various concentrations of organic complexes were investigated using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Adsorption of clomazone on all examined samples was investigated using the batch adsorption method. Montmorillonite modified with HDTMA-bromide displayed greater uptake of the clomazone compared to the PTMA-montmorillonite, and both organically modified montmorillonites displayed greater uptake of the herbicide compared to the inorganic montmorillonite. Comparing the Freundlich coefficient and maximum adsorbed clomazone quantity values obtained by Langmuir model, the levels of adsorption of clomazone decreased in the following order: HDTMA-montmorillonite with 1.00 cation-exchange capacity (CEC) saturation > HDTMA-montmorillonite with 0.75 CEC saturation > PTMA-montmorillonite with 1.00 CEC saturation > PTMA-montmorillonite with 0.75 CEC saturation > HDTMA-montmorillonite with 0.50 CEC saturation > HDTMA-montmorillonite with 0.25 CEC saturation > PTMA-montmorillonite with 0.50 CEC saturation > PTMA-montmorillonite with 0.25 CEC saturation > Na-montmorillonite > raw sample. The type and content of an organic cation plays an important role in the behaviour of clomazone in a solid/liquid system. It is concluded that organically modified montmorillonite from Bogovina might be used as an effective adsorbent for clomazone.
PB  - Cambridge University Press
T2  - Clay Minerals
T1  - Adsorption behaviour of clomazone on inorganic and organically modified natural montmorillonite from Bogovina (Serbia)
EP  - 350
IS  - 4
SP  - 342
VL  - 55
DO  - 10.1180/clm.2021.3
ER  - 

@article{
author = "Kaluđerović, Lazar and Tomić, Zorica and Đurović-Pejčev, Rada and Životić, Ljubomir",
year = "2021",
abstract = "The adsorption behaviour of the herbicide clomazone on inorganic and organically modified montmorillonite from the Bogovina deposit in Serbia was investigated. Montmorillonite was modified first with NaCl and then with organic complexes such as hexadecyltrimethylammonium bromide (HDTMA) and phenyltrimethylammonium chloride (PTMA). Changes in the surface properties and morphology of the montmorillonite before and after the modification with various concentrations of organic complexes were investigated using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Adsorption of clomazone on all examined samples was investigated using the batch adsorption method. Montmorillonite modified with HDTMA-bromide displayed greater uptake of the clomazone compared to the PTMA-montmorillonite, and both organically modified montmorillonites displayed greater uptake of the herbicide compared to the inorganic montmorillonite. Comparing the Freundlich coefficient and maximum adsorbed clomazone quantity values obtained by Langmuir model, the levels of adsorption of clomazone decreased in the following order: HDTMA-montmorillonite with 1.00 cation-exchange capacity (CEC) saturation > HDTMA-montmorillonite with 0.75 CEC saturation > PTMA-montmorillonite with 1.00 CEC saturation > PTMA-montmorillonite with 0.75 CEC saturation > HDTMA-montmorillonite with 0.50 CEC saturation > HDTMA-montmorillonite with 0.25 CEC saturation > PTMA-montmorillonite with 0.50 CEC saturation > PTMA-montmorillonite with 0.25 CEC saturation > Na-montmorillonite > raw sample. The type and content of an organic cation plays an important role in the behaviour of clomazone in a solid/liquid system. It is concluded that organically modified montmorillonite from Bogovina might be used as an effective adsorbent for clomazone.",
publisher = "Cambridge University Press",
journal = "Clay Minerals",
title = "Adsorption behaviour of clomazone on inorganic and organically modified natural montmorillonite from Bogovina (Serbia)",
pages = "350-342",
number = "4",
volume = "55",
doi = "10.1180/clm.2021.3"
}

Kaluđerović, L., Tomić, Z., Đurović-Pejčev, R.,& Životić, L.. (2021). Adsorption behaviour of clomazone on inorganic and organically modified natural montmorillonite from Bogovina (Serbia). in Clay Minerals
Cambridge University Press., 55(4), 342-350.
https://doi.org/10.1180/clm.2021.3

Kaluđerović L, Tomić Z, Đurović-Pejčev R, Životić L. Adsorption behaviour of clomazone on inorganic and organically modified natural montmorillonite from Bogovina (Serbia). in Clay Minerals. 2021;55(4):342-350.
doi:10.1180/clm.2021.3 .

Kaluđerović, Lazar, Tomić, Zorica, Đurović-Pejčev, Rada, Životić, Ljubomir, "Adsorption behaviour of clomazone on inorganic and organically modified natural montmorillonite from Bogovina (Serbia)" in Clay Minerals, 55, no. 4 (2021):342-350,
https://doi.org/10.1180/clm.2021.3 . .

TY  - JOUR
AU  - Durović-Pejcev, Rada D.
AU  - Radmanović, Svjetlana
AU  - Tomić, Zorica
AU  - Kaludjerović, Lazar
AU  - Bursić, Vojislava P.
AU  - Santrić, Ljiljana R.
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5277
AB  - Studies of adsorption and desorption of pesticides by soils are important for understanding and predicting their fate and transmission in the environment. Considering the agricultural and environmental relevance of clomazone, its sorption-desorption behaviour was studied in two widespread Serbian agricultural soil types named Regosol and Chernozem. Both phenomena are well-described by the Freundlich equation, which shows that clomazone is generally sorbed more to organic matter than to the mineral soil fractions. Chernozem, a soil containing more of both organic matter and clay, was found to bind more, and desorb less herbicide, than Regosol. Higher desorption hysteresis obtained for Chernozem could be attributed to its larger number of high-energy sorption sites, compared to Regosol. In both soils, the hysteresis effect increases with the rise of initial clomazone concentration in the soil-water system, while the percentage of desorbed amount during successive desorption cycles decreases. The presented adsorption-desorption study shows that soil composition plays an important role in clomazone behaviour and fate in the environment, and a significantly reduced probability of contamination of both the deeper soil layers and groundwater may be expected when this herbicide is found in humus-rich soils.
PB  - Srpsko hemijsko društvo, Beograd
T2  - JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
T1  - Adsorption-desorption behaviour of clomazone in Regosol and Chernozem agricultural soils
EP  - 819
IS  - 6
SP  - 809
VL  - 85
DO  - 10.2298/JSC190917122D
ER  - 

@article{
author = "Durović-Pejcev, Rada D. and Radmanović, Svjetlana and Tomić, Zorica and Kaludjerović, Lazar and Bursić, Vojislava P. and Santrić, Ljiljana R.",
year = "2020",
abstract = "Studies of adsorption and desorption of pesticides by soils are important for understanding and predicting their fate and transmission in the environment. Considering the agricultural and environmental relevance of clomazone, its sorption-desorption behaviour was studied in two widespread Serbian agricultural soil types named Regosol and Chernozem. Both phenomena are well-described by the Freundlich equation, which shows that clomazone is generally sorbed more to organic matter than to the mineral soil fractions. Chernozem, a soil containing more of both organic matter and clay, was found to bind more, and desorb less herbicide, than Regosol. Higher desorption hysteresis obtained for Chernozem could be attributed to its larger number of high-energy sorption sites, compared to Regosol. In both soils, the hysteresis effect increases with the rise of initial clomazone concentration in the soil-water system, while the percentage of desorbed amount during successive desorption cycles decreases. The presented adsorption-desorption study shows that soil composition plays an important role in clomazone behaviour and fate in the environment, and a significantly reduced probability of contamination of both the deeper soil layers and groundwater may be expected when this herbicide is found in humus-rich soils.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "JOURNAL OF THE SERBIAN CHEMICAL SOCIETY",
title = "Adsorption-desorption behaviour of clomazone in Regosol and Chernozem agricultural soils",
pages = "819-809",
number = "6",
volume = "85",
doi = "10.2298/JSC190917122D"
}

Durović-Pejcev, R. D., Radmanović, S., Tomić, Z., Kaludjerović, L., Bursić, V. P.,& Santrić, L. R.. (2020). Adsorption-desorption behaviour of clomazone in Regosol and Chernozem agricultural soils. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
Srpsko hemijsko društvo, Beograd., 85(6), 809-819.
https://doi.org/10.2298/JSC190917122D

Durović-Pejcev RD, Radmanović S, Tomić Z, Kaludjerović L, Bursić VP, Santrić LR. Adsorption-desorption behaviour of clomazone in Regosol and Chernozem agricultural soils. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY. 2020;85(6):809-819.
doi:10.2298/JSC190917122D .

Durović-Pejcev, Rada D., Radmanović, Svjetlana, Tomić, Zorica, Kaludjerović, Lazar, Bursić, Vojislava P., Santrić, Ljiljana R., "Adsorption-desorption behaviour of clomazone in Regosol and Chernozem agricultural soils" in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY, 85, no. 6 (2020):809-819,
https://doi.org/10.2298/JSC190917122D . .

TY  - JOUR
AU  - Isek, Josip
AU  - Kaludjerović, Lazar
AU  - Vuković, Nikola S.
AU  - Milošević, Maja
AU  - Vukašinović, Ivana
AU  - Tomić, Zorica
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5273
AB  - Two samples collected from the phosphogypsum deposits of the chemical products industry Elixir Prahovo (Serbia) were subjected to a recrystallization experiment performed over several repeated cycles. In these tests, phosphogypsum was separated into recrystallized (purified) gypsum, insoluble residue and supernatant. Both raw phosphogypsum and recrystallized gypsum were examined using inductively coupled plasma optical emission spectrometry, X-ray diffraction and scanning electron microscopy with energy-dispersive spectrometry. The activity concentrations of (238)u, (235)u, Ra-226, Pb-210,Th- 232 and 40 K were investigated using gamma-ray spectrometry. Based on the activity concentration results, a number of radiometric parameters were calculated for the original and recrystallized phosphogypsum (i.e. radium equivalent activity, y indices for construction materials, a index and external and internal hazard indices). Raw phosphogypsum samples showed greater mean activity concentration levels of U-238 and Ra-226 than the international recommended limits, while the recrystallized gypsum demonstrated notably lower activity concentrations for these two isotopes. The activity concentration of Ra-226 in recrystallized gypsum is similar to 6 times lower than in raw phosphogypsum. Therefore, recrystallized gypsum does not present a radiation hazard when used as a building material, while raw phosphogypsum meets the requirements only for road construction materials.
PB  - Mineralogical Soc, Twickenham
T2  - Clay Minerals
T1  - Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering
EP  - 70
IS  - 1
SP  - 63
VL  - 55
DO  - 10.1180/clm.2020.11
ER  - 

@article{
author = "Isek, Josip and Kaludjerović, Lazar and Vuković, Nikola S. and Milošević, Maja and Vukašinović, Ivana and Tomić, Zorica",
year = "2020",
abstract = "Two samples collected from the phosphogypsum deposits of the chemical products industry Elixir Prahovo (Serbia) were subjected to a recrystallization experiment performed over several repeated cycles. In these tests, phosphogypsum was separated into recrystallized (purified) gypsum, insoluble residue and supernatant. Both raw phosphogypsum and recrystallized gypsum were examined using inductively coupled plasma optical emission spectrometry, X-ray diffraction and scanning electron microscopy with energy-dispersive spectrometry. The activity concentrations of (238)u, (235)u, Ra-226, Pb-210,Th- 232 and 40 K were investigated using gamma-ray spectrometry. Based on the activity concentration results, a number of radiometric parameters were calculated for the original and recrystallized phosphogypsum (i.e. radium equivalent activity, y indices for construction materials, a index and external and internal hazard indices). Raw phosphogypsum samples showed greater mean activity concentration levels of U-238 and Ra-226 than the international recommended limits, while the recrystallized gypsum demonstrated notably lower activity concentrations for these two isotopes. The activity concentration of Ra-226 in recrystallized gypsum is similar to 6 times lower than in raw phosphogypsum. Therefore, recrystallized gypsum does not present a radiation hazard when used as a building material, while raw phosphogypsum meets the requirements only for road construction materials.",
publisher = "Mineralogical Soc, Twickenham",
journal = "Clay Minerals",
title = "Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering",
pages = "70-63",
number = "1",
volume = "55",
doi = "10.1180/clm.2020.11"
}

Isek, J., Kaludjerović, L., Vuković, N. S., Milošević, M., Vukašinović, I.,& Tomić, Z.. (2020). Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering. in Clay Minerals
Mineralogical Soc, Twickenham., 55(1), 63-70.
https://doi.org/10.1180/clm.2020.11

Isek J, Kaludjerović L, Vuković NS, Milošević M, Vukašinović I, Tomić Z. Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering. in Clay Minerals. 2020;55(1):63-70.
doi:10.1180/clm.2020.11 .

Isek, Josip, Kaludjerović, Lazar, Vuković, Nikola S., Milošević, Maja, Vukašinović, Ivana, Tomić, Zorica, "Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering" in Clay Minerals, 55, no. 1 (2020):63-70,
https://doi.org/10.1180/clm.2020.11 . .

TY  - JOUR
AU  - Kaludjerović, Lazar
AU  - Tomić, Zorica
AU  - Ašanin, Darko P.
AU  - Durović-Pejcev, Rada D.
AU  - Kresović, Branka
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4667
AB  - The results presented in this paper show an impact of the concentration of the aromatic organic cation on the adsorption of acetochlor on the surface of the organic-modified montmorillonite. Natural montmorillonite from Bogovina (Boljevac municipality, Serbia) was used for organic modification in this experiment. Cation exchange capacity of this montmorillonite (86mmol 100g(-1) of clay) was determined using the methylene blue method. In pretreatment, montmorillonite was modified with NaCl. For the purpose of organic modification, three different concentrations of phenyltrimethylammonium chloride (PTMA) have been selected, based on calculated CEC value: 43mmol 100g(-1) of clay (0.5 CEC), 86mmol 100g(-1) of clay (1 CEC) and 129mmol 100g(-1) of clay (1.5 CEC). The changes in the properties of the inorganic and organic modified montmorillonite were examined using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and batch equilibrium method. Freundlich coefficients show higher uptake of the herbicide by montmorillonite modified with PTMA, compared to inorganic-modified montmorillonite. The results also indicate the influence of the organic cation concentration on the adsorption of the selected herbicide.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was
T1  - Examination of the influence of phenyltrimethylammonium chloride (PTMA) concentration on acetochlor adsorption by modified montmorillonite
EP  - 509
IS  - 8
SP  - 503
VL  - 53
DO  - 10.1080/03601234.2018.1462930
ER  - 

@article{
author = "Kaludjerović, Lazar and Tomić, Zorica and Ašanin, Darko P. and Durović-Pejcev, Rada D. and Kresović, Branka",
year = "2018",
abstract = "The results presented in this paper show an impact of the concentration of the aromatic organic cation on the adsorption of acetochlor on the surface of the organic-modified montmorillonite. Natural montmorillonite from Bogovina (Boljevac municipality, Serbia) was used for organic modification in this experiment. Cation exchange capacity of this montmorillonite (86mmol 100g(-1) of clay) was determined using the methylene blue method. In pretreatment, montmorillonite was modified with NaCl. For the purpose of organic modification, three different concentrations of phenyltrimethylammonium chloride (PTMA) have been selected, based on calculated CEC value: 43mmol 100g(-1) of clay (0.5 CEC), 86mmol 100g(-1) of clay (1 CEC) and 129mmol 100g(-1) of clay (1.5 CEC). The changes in the properties of the inorganic and organic modified montmorillonite were examined using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and batch equilibrium method. Freundlich coefficients show higher uptake of the herbicide by montmorillonite modified with PTMA, compared to inorganic-modified montmorillonite. The results also indicate the influence of the organic cation concentration on the adsorption of the selected herbicide.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was",
title = "Examination of the influence of phenyltrimethylammonium chloride (PTMA) concentration on acetochlor adsorption by modified montmorillonite",
pages = "509-503",
number = "8",
volume = "53",
doi = "10.1080/03601234.2018.1462930"
}

Kaludjerović, L., Tomić, Z., Ašanin, D. P., Durović-Pejcev, R. D.,& Kresović, B.. (2018). Examination of the influence of phenyltrimethylammonium chloride (PTMA) concentration on acetochlor adsorption by modified montmorillonite. in Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was
Taylor & Francis Inc, Philadelphia., 53(8), 503-509.
https://doi.org/10.1080/03601234.2018.1462930

Kaludjerović L, Tomić Z, Ašanin DP, Durović-Pejcev RD, Kresović B. Examination of the influence of phenyltrimethylammonium chloride (PTMA) concentration on acetochlor adsorption by modified montmorillonite. in Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was. 2018;53(8):503-509.
doi:10.1080/03601234.2018.1462930 .

Kaludjerović, Lazar, Tomić, Zorica, Ašanin, Darko P., Durović-Pejcev, Rada D., Kresović, Branka, "Examination of the influence of phenyltrimethylammonium chloride (PTMA) concentration on acetochlor adsorption by modified montmorillonite" in Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was, 53, no. 8 (2018):503-509,
https://doi.org/10.1080/03601234.2018.1462930 . .

TY  - CONF
AU  - Gajić, Boško
AU  - Kresović, Branka
AU  - Životić, Ljubomir
AU  - Dugalić, Goran
AU  - Tomić, Zorica
AU  - Sredojević, Zorica
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6752
AB  - Surface soil hydrological properties like water infiltration and hydraulic conductivity have important
consequences for hydrological properties of soils in river basins and their knowledge is needed for
sound land management, as well as flood risk prevention. They are very dynamic properties due to
varying land use management practices. The objective of this study was to evaluate the effects of two land uses (native meadow and arable) on surface (0–30 cm) infiltration characteristics of a silty clay loam and sandy loam soils at three sites in the Kolubara river valley and the Nišava river valley, respectivelly, with temperate climate, Serbia. A site consisted of two adjacent but different land uses on the same soil types. For each land use, water infiltration rates were measured in triplicate using double ring infiltrometer. Particle size distribution, bulk density and soil organic matter content of the surface soil were determined. Experimental measurements in the field indicated that treatments significantly influenced water infiltration characteristics on both locations. At both site the infiltration rates showed a decrease as a function of elapsed time. Steady state infiltration rate and cumulative infiltration of sandy loam-textured soils under the meadows were much lower than that for the arable soils. By contrast, the infiltration capacity and cumulative infiltration of silty clay loam soils under the meadows was significantly (P < 0.05) higher compared to arable soils. Increase in infiltration capacity of arable soils were related to decrease in bulk density. In addition, in tilled sandy loam soil infiltration was much higher than in silty clay loam soil. However, infiltration in a silty clay loam under meadow was lower compared with sandy loam soil. According to the results of our study it could be concluded that the land use change infiltration properties of surface soil and consequently may alter the water balance of the area by
changing the amount of surface runoff and soil water retention. Knowledge of how management
practices affect infiltration capacity can aid growers in reducing soil quality and degradation.
PB  - Srpsko društvo za proučavanje zemljišta
C3  - 2nd International and 14th National Congress of Soil Science Society of Serbia "Solutions and Projections for Sustainable Soil Management", Novi Sad, Serbia
T1  - Water infiltration affected by different land use types and soil texture in temperate climate
EP  - 234
SP  - 228
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6752
ER  - 

@conference{
author = "Gajić, Boško and Kresović, Branka and Životić, Ljubomir and Dugalić, Goran and Tomić, Zorica and Sredojević, Zorica",
year = "2017",
abstract = "Surface soil hydrological properties like water infiltration and hydraulic conductivity have important
consequences for hydrological properties of soils in river basins and their knowledge is needed for
sound land management, as well as flood risk prevention. They are very dynamic properties due to
varying land use management practices. The objective of this study was to evaluate the effects of two land uses (native meadow and arable) on surface (0–30 cm) infiltration characteristics of a silty clay loam and sandy loam soils at three sites in the Kolubara river valley and the Nišava river valley, respectivelly, with temperate climate, Serbia. A site consisted of two adjacent but different land uses on the same soil types. For each land use, water infiltration rates were measured in triplicate using double ring infiltrometer. Particle size distribution, bulk density and soil organic matter content of the surface soil were determined. Experimental measurements in the field indicated that treatments significantly influenced water infiltration characteristics on both locations. At both site the infiltration rates showed a decrease as a function of elapsed time. Steady state infiltration rate and cumulative infiltration of sandy loam-textured soils under the meadows were much lower than that for the arable soils. By contrast, the infiltration capacity and cumulative infiltration of silty clay loam soils under the meadows was significantly (P < 0.05) higher compared to arable soils. Increase in infiltration capacity of arable soils were related to decrease in bulk density. In addition, in tilled sandy loam soil infiltration was much higher than in silty clay loam soil. However, infiltration in a silty clay loam under meadow was lower compared with sandy loam soil. According to the results of our study it could be concluded that the land use change infiltration properties of surface soil and consequently may alter the water balance of the area by
changing the amount of surface runoff and soil water retention. Knowledge of how management
practices affect infiltration capacity can aid growers in reducing soil quality and degradation.",
publisher = "Srpsko društvo za proučavanje zemljišta",
journal = "2nd International and 14th National Congress of Soil Science Society of Serbia "Solutions and Projections for Sustainable Soil Management", Novi Sad, Serbia",
title = "Water infiltration affected by different land use types and soil texture in temperate climate",
pages = "234-228",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6752"
}

Gajić, B., Kresović, B., Životić, L., Dugalić, G., Tomić, Z.,& Sredojević, Z.. (2017). Water infiltration affected by different land use types and soil texture in temperate climate. in 2nd International and 14th National Congress of Soil Science Society of Serbia "Solutions and Projections for Sustainable Soil Management", Novi Sad, Serbia
Srpsko društvo za proučavanje zemljišta., 228-234.
https://hdl.handle.net/21.15107/rcub_agrospace_6752

Gajić B, Kresović B, Životić L, Dugalić G, Tomić Z, Sredojević Z. Water infiltration affected by different land use types and soil texture in temperate climate. in 2nd International and 14th National Congress of Soil Science Society of Serbia "Solutions and Projections for Sustainable Soil Management", Novi Sad, Serbia. 2017;:228-234.
https://hdl.handle.net/21.15107/rcub_agrospace_6752 .

Gajić, Boško, Kresović, Branka, Životić, Ljubomir, Dugalić, Goran, Tomić, Zorica, Sredojević, Zorica, "Water infiltration affected by different land use types and soil texture in temperate climate" in 2nd International and 14th National Congress of Soil Science Society of Serbia "Solutions and Projections for Sustainable Soil Management", Novi Sad, Serbia (2017):228-234,
https://hdl.handle.net/21.15107/rcub_agrospace_6752 .

TY  - JOUR
AU  - Antić-Mladenović, Svetlana
AU  - Frohne, Tina
AU  - Kresović, Mirjana
AU  - Staerk, Hans-Joachim
AU  - Tomić, Zorica
AU  - Ličina, Vlado
AU  - Rinklebe, Joerg
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4371
AB  - The redox-induced (im)mobilization of nickel (Ni) and lead (Pb) under pre-definite redox conditions and their binding forms were studied in a periodically flooded, slightly acidic arable soil enriched with serpentine minerals at the Velika Morava River valley, Serbia. The total contents of Ni and Pb were 152 and 109 mg kg(-1), respectively. Geochemical fractionation of Ni, combined with mineralogical analysis, confirmed its geogenic origin in the soil. Potentially mobile fractions were the dominating binding forms of Pb; thus, indicating anthropogenic sources as prevailing. Risk assessment indicated a low risk of Ni and Pb transfer from soil to other environmental constituents. However, the results imply that geogenic metals might pose higher environmental risk than those from anthropogenic origin, in dependence of their total concentrations and contents in the specific solid-phase fractions. Flooding of the soil was simulated in an automated biogeochemical microcosm system, which allows a control and a continuous measurements of redox potential (En) and pH. Subsequently, the EH was increased in steps of approximately 100 mV from anoxic to oxic conditions. Concurrently, the concentrations of soluble Ni, Pb, iron (Fe), manganese (Mn), dissolved organic carbon (DOC), and sulfates were measured. The EH was brought from low to high values (-220 to 520 mV) and correlated negative with soluble Ni, Pb, Fe, Mn and DOC. Soluble Ni ranged from 125 to 228 mu g 1(-1) while Pb ranged from 3.0 to 21.4 mu g 1(-1). Concentrations of both metals in solution were high at low EH and decreased with increasing EH. Nickel immobilization may be attributed to sorption to or co-precipitation with re-oxidized Fe-Mn (hydr)oxides, whereas Pb, in addition, might be immobilized via precipitation with inorganic ligands, such as carbonates and phosphates. The results imply that Ni and Pb solubility might also be related to the formation of metal-DOC complexes. The detected dynamic and mechanisms might be useful in providing critical information for assessing the potential environmental risk and creating appropriate environmental management strategies for agricultural areas enriched with Ni and Pb.
PB  - Academic Press Ltd- Elsevier Science Ltd, London
T2  - Journal of Environmental Management
T1  - Biogeochemistry of Ni and Pb in a periodically flooded arable soil: Fractionation and redox-induced (im)mobilization
EP  - 150
SP  - 141
VL  - 186
DO  - 10.1016/j.jenvman.2016.06.005
ER  - 

@article{
author = "Antić-Mladenović, Svetlana and Frohne, Tina and Kresović, Mirjana and Staerk, Hans-Joachim and Tomić, Zorica and Ličina, Vlado and Rinklebe, Joerg",
year = "2017",
abstract = "The redox-induced (im)mobilization of nickel (Ni) and lead (Pb) under pre-definite redox conditions and their binding forms were studied in a periodically flooded, slightly acidic arable soil enriched with serpentine minerals at the Velika Morava River valley, Serbia. The total contents of Ni and Pb were 152 and 109 mg kg(-1), respectively. Geochemical fractionation of Ni, combined with mineralogical analysis, confirmed its geogenic origin in the soil. Potentially mobile fractions were the dominating binding forms of Pb; thus, indicating anthropogenic sources as prevailing. Risk assessment indicated a low risk of Ni and Pb transfer from soil to other environmental constituents. However, the results imply that geogenic metals might pose higher environmental risk than those from anthropogenic origin, in dependence of their total concentrations and contents in the specific solid-phase fractions. Flooding of the soil was simulated in an automated biogeochemical microcosm system, which allows a control and a continuous measurements of redox potential (En) and pH. Subsequently, the EH was increased in steps of approximately 100 mV from anoxic to oxic conditions. Concurrently, the concentrations of soluble Ni, Pb, iron (Fe), manganese (Mn), dissolved organic carbon (DOC), and sulfates were measured. The EH was brought from low to high values (-220 to 520 mV) and correlated negative with soluble Ni, Pb, Fe, Mn and DOC. Soluble Ni ranged from 125 to 228 mu g 1(-1) while Pb ranged from 3.0 to 21.4 mu g 1(-1). Concentrations of both metals in solution were high at low EH and decreased with increasing EH. Nickel immobilization may be attributed to sorption to or co-precipitation with re-oxidized Fe-Mn (hydr)oxides, whereas Pb, in addition, might be immobilized via precipitation with inorganic ligands, such as carbonates and phosphates. The results imply that Ni and Pb solubility might also be related to the formation of metal-DOC complexes. The detected dynamic and mechanisms might be useful in providing critical information for assessing the potential environmental risk and creating appropriate environmental management strategies for agricultural areas enriched with Ni and Pb.",
publisher = "Academic Press Ltd- Elsevier Science Ltd, London",
journal = "Journal of Environmental Management",
title = "Biogeochemistry of Ni and Pb in a periodically flooded arable soil: Fractionation and redox-induced (im)mobilization",
pages = "150-141",
volume = "186",
doi = "10.1016/j.jenvman.2016.06.005"
}

Antić-Mladenović, S., Frohne, T., Kresović, M., Staerk, H., Tomić, Z., Ličina, V.,& Rinklebe, J.. (2017). Biogeochemistry of Ni and Pb in a periodically flooded arable soil: Fractionation and redox-induced (im)mobilization. in Journal of Environmental Management
Academic Press Ltd- Elsevier Science Ltd, London., 186, 141-150.
https://doi.org/10.1016/j.jenvman.2016.06.005

Antić-Mladenović S, Frohne T, Kresović M, Staerk H, Tomić Z, Ličina V, Rinklebe J. Biogeochemistry of Ni and Pb in a periodically flooded arable soil: Fractionation and redox-induced (im)mobilization. in Journal of Environmental Management. 2017;186:141-150.
doi:10.1016/j.jenvman.2016.06.005 .

Antić-Mladenović, Svetlana, Frohne, Tina, Kresović, Mirjana, Staerk, Hans-Joachim, Tomić, Zorica, Ličina, Vlado, Rinklebe, Joerg, "Biogeochemistry of Ni and Pb in a periodically flooded arable soil: Fractionation and redox-induced (im)mobilization" in Journal of Environmental Management, 186 (2017):141-150,
https://doi.org/10.1016/j.jenvman.2016.06.005 . .

TY  - JOUR
AU  - Ličina, Vlado
AU  - Fotirić-Akšić, Milica
AU  - Tomić, Zorica
AU  - Trajković, Ivana
AU  - Antić-Mladenović, Svetlana
AU  - Marjanović, Milena
AU  - Rinklebe, Joerg
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4359
AB  - The contemporary reclamation method in an opencast coal mine closure comprises the use of the preserved surface soil layer (SSL) before mining, and can be directly returned to the areas being rehabilitated. The present study emphasizes a risk in the use of such a SSL in mine rehabilitation due to the possible excessive amount of heavy metals which usually derives from a metal-rich sediment or fluvial character of overburden material. This indication was approved by the bioassessment of cadmium (Cd), chromium (Cr), cobalt (Co), copper (Cu), lead (Pb), nickel (Ni), and zinc (Zn) in root and aerial parts of maize (Zea mays), alfalfa (Medicago sativa), sweet clover (Melilotus officinalis), wheat (Triticum aestivum), barley (Hordeum sativum), white clover (Trifolium repens), pasture (Poales sp.), tomato (Solanum lycopersicum), potato (Solanum tuberosum) and carrot (Daucus carota) grown on SSL in the opencast mine area. The fluvial layers of the investigated mine SSL revealed the excessive existence of Ni and Cr, probably of geogenic origin, according to the X-ray diffraction (XRD) which detected Ni- and Cr-bearing minerals in soil fractions. In addition, the highest residual fraction of these two heavy metals, obtained by sequential extraction analyses, together with all other tested soil parameters, supported this assumption. Nevertheless, the accumulations of Cr in tomato fruit (2.93 mg kg(-1)), potato tuber (5.89 mg kg(-1)) and carrot root (7.35 mg kg(-1)) grown on the investigated SSL were found to exceed a critical level of this element for human nutrition. However, despite the evident excess of Ni in the investigated SSL, a similar trend was not found in edible part of plants. The transfer and mobility of the investigated metals was evaluated using the accumulation factor (AF  lt  1.0) where the root were the preferential organ for the storage of heavy metals. This investigation could bring an important input for its acceptability of use in soil restoration after mining for food fodder production, or it could indicate the potential risks of the presence of heavy metals regarding its possible use in improving the human surrounding.
PB  - Academic Press Ltd- Elsevier Science Ltd, London
T2  - Journal of Environmental Management
T1  - Bioassessment of heavy metals in the surface soil layer of an opencast mine aimed for its rehabilitation
EP  - 252
SP  - 240
VL  - 186
DO  - 10.1016/j.jenvman.2016.06.050
ER  - 

@article{
author = "Ličina, Vlado and Fotirić-Akšić, Milica and Tomić, Zorica and Trajković, Ivana and Antić-Mladenović, Svetlana and Marjanović, Milena and Rinklebe, Joerg",
year = "2017",
abstract = "The contemporary reclamation method in an opencast coal mine closure comprises the use of the preserved surface soil layer (SSL) before mining, and can be directly returned to the areas being rehabilitated. The present study emphasizes a risk in the use of such a SSL in mine rehabilitation due to the possible excessive amount of heavy metals which usually derives from a metal-rich sediment or fluvial character of overburden material. This indication was approved by the bioassessment of cadmium (Cd), chromium (Cr), cobalt (Co), copper (Cu), lead (Pb), nickel (Ni), and zinc (Zn) in root and aerial parts of maize (Zea mays), alfalfa (Medicago sativa), sweet clover (Melilotus officinalis), wheat (Triticum aestivum), barley (Hordeum sativum), white clover (Trifolium repens), pasture (Poales sp.), tomato (Solanum lycopersicum), potato (Solanum tuberosum) and carrot (Daucus carota) grown on SSL in the opencast mine area. The fluvial layers of the investigated mine SSL revealed the excessive existence of Ni and Cr, probably of geogenic origin, according to the X-ray diffraction (XRD) which detected Ni- and Cr-bearing minerals in soil fractions. In addition, the highest residual fraction of these two heavy metals, obtained by sequential extraction analyses, together with all other tested soil parameters, supported this assumption. Nevertheless, the accumulations of Cr in tomato fruit (2.93 mg kg(-1)), potato tuber (5.89 mg kg(-1)) and carrot root (7.35 mg kg(-1)) grown on the investigated SSL were found to exceed a critical level of this element for human nutrition. However, despite the evident excess of Ni in the investigated SSL, a similar trend was not found in edible part of plants. The transfer and mobility of the investigated metals was evaluated using the accumulation factor (AF  lt  1.0) where the root were the preferential organ for the storage of heavy metals. This investigation could bring an important input for its acceptability of use in soil restoration after mining for food fodder production, or it could indicate the potential risks of the presence of heavy metals regarding its possible use in improving the human surrounding.",
publisher = "Academic Press Ltd- Elsevier Science Ltd, London",
journal = "Journal of Environmental Management",
title = "Bioassessment of heavy metals in the surface soil layer of an opencast mine aimed for its rehabilitation",
pages = "252-240",
volume = "186",
doi = "10.1016/j.jenvman.2016.06.050"
}

Ličina, V., Fotirić-Akšić, M., Tomić, Z., Trajković, I., Antić-Mladenović, S., Marjanović, M.,& Rinklebe, J.. (2017). Bioassessment of heavy metals in the surface soil layer of an opencast mine aimed for its rehabilitation. in Journal of Environmental Management
Academic Press Ltd- Elsevier Science Ltd, London., 186, 240-252.
https://doi.org/10.1016/j.jenvman.2016.06.050

Ličina V, Fotirić-Akšić M, Tomić Z, Trajković I, Antić-Mladenović S, Marjanović M, Rinklebe J. Bioassessment of heavy metals in the surface soil layer of an opencast mine aimed for its rehabilitation. in Journal of Environmental Management. 2017;186:240-252.
doi:10.1016/j.jenvman.2016.06.050 .

Ličina, Vlado, Fotirić-Akšić, Milica, Tomić, Zorica, Trajković, Ivana, Antić-Mladenović, Svetlana, Marjanović, Milena, Rinklebe, Joerg, "Bioassessment of heavy metals in the surface soil layer of an opencast mine aimed for its rehabilitation" in Journal of Environmental Management, 186 (2017):240-252,
https://doi.org/10.1016/j.jenvman.2016.06.050 . .

TY  - JOUR
AU  - Kaludjerović, Lazar
AU  - Tomić, Zorica
AU  - Durović-Pejcev, Rada D.
AU  - Vulić, Predrag J.
AU  - Ašanin, Darko P.
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4337
AB  - This study was undertaken to determine the impact of the organic complex concentration on the adsorption of herbicide (acetochlor) at the surface of the organic modified montmorillonite. In this work, natural montmorillonite from Bogovina (Boljevac municipality, Serbia) was used for organic modification. Cation-exchange capacity of this montmorillonite was determined using a methylene blue method (86mmol/100g of clay). Montmorillonite has been modified first with NaCl and then with hexadecyltrimethylammonium bromide (HDTMA-bromide) organic complex. Saturation of cation exchange capacity (CEC) was 50%, 100%, and 150%. Changes in the properties of the inorganic and organic montmorillonite have been examined using the X-ray diffraction, Fourier transform infrared spectroscopy, and batch equilibrium method. Montmorillonite modified with HDTMA-bromide demonstrated higher uptake of the herbicide, compared to the inorganic montmorillonite. Comparing the values Freundlich coefficients in batch equilibrium method, it can be seen that the adsorption of acetochlor decreased in the series: 0.5 CEC HM > 1 CEC HM > 1.5 CEC HM > NaM.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was
T1  - Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite
EP  - 297
IS  - 5
SP  - 291
VL  - 52
DO  - 10.1080/03601234.2017.1281636
ER  - 

@article{
author = "Kaludjerović, Lazar and Tomić, Zorica and Durović-Pejcev, Rada D. and Vulić, Predrag J. and Ašanin, Darko P.",
year = "2017",
abstract = "This study was undertaken to determine the impact of the organic complex concentration on the adsorption of herbicide (acetochlor) at the surface of the organic modified montmorillonite. In this work, natural montmorillonite from Bogovina (Boljevac municipality, Serbia) was used for organic modification. Cation-exchange capacity of this montmorillonite was determined using a methylene blue method (86mmol/100g of clay). Montmorillonite has been modified first with NaCl and then with hexadecyltrimethylammonium bromide (HDTMA-bromide) organic complex. Saturation of cation exchange capacity (CEC) was 50%, 100%, and 150%. Changes in the properties of the inorganic and organic montmorillonite have been examined using the X-ray diffraction, Fourier transform infrared spectroscopy, and batch equilibrium method. Montmorillonite modified with HDTMA-bromide demonstrated higher uptake of the herbicide, compared to the inorganic montmorillonite. Comparing the values Freundlich coefficients in batch equilibrium method, it can be seen that the adsorption of acetochlor decreased in the series: 0.5 CEC HM > 1 CEC HM > 1.5 CEC HM > NaM.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was",
title = "Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite",
pages = "297-291",
number = "5",
volume = "52",
doi = "10.1080/03601234.2017.1281636"
}

Kaludjerović, L., Tomić, Z., Durović-Pejcev, R. D., Vulić, P. J.,& Ašanin, D. P.. (2017). Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite. in Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was
Taylor & Francis Inc, Philadelphia., 52(5), 291-297.
https://doi.org/10.1080/03601234.2017.1281636

Kaludjerović L, Tomić Z, Durović-Pejcev RD, Vulić PJ, Ašanin DP. Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite. in Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was. 2017;52(5):291-297.
doi:10.1080/03601234.2017.1281636 .

Kaludjerović, Lazar, Tomić, Zorica, Durović-Pejcev, Rada D., Vulić, Predrag J., Ašanin, Darko P., "Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite" in Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was, 52, no. 5 (2017):291-297,
https://doi.org/10.1080/03601234.2017.1281636 . .

TY  - CONF
AU  - Kaluđerović, Lazar
AU  - Tomić, Zorica
AU  - Đurović, Rada
AU  - Milošević, Maja
PY  - 2016
UR  - https://meetingorganizer.copernicus.org/EGU2016/EGU2016-3425.pdf
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6573
AB  - Pesticides are recognized as an important source of potential pollution to soil and water due to their mobility and degradation in soils. Results presented in this paper show impact of the organic complex concentration on the adsorption of herbicides (acetochlor) at the surface of the organic modified montmorillonite. In this work, natural montmorillonite from Bogovina, located near Boljevac municipality, was used for organic modification. Cationexchange capacity of this montmorillonite was determined by extraction with ammonium acetate (86 mmol/100g
of clay). Montmorillonite have been modified first with NaCl and than with two organic complexes, hexadecyltrimethylammonium bromide (HDTMA) and phenyltrimethylammonium chloride (PTMA). For both organic complexes, three saturation concentrations were selected for monitoring of the herbicide adsorption (43 mmol/100g of clay (0.5 CEC), 86 mmol/100g of clay (1 CEC) and 129 mmol/100g of clay (1.5 CEC)). Changes in the properties of the inorganic and organic bentonite have been examined using the X-ray powder diffraction (XRPD) andbatch equilibrium method. Increase in basal spacing (d) of montmorillonites saturated with 1.5 CEC of organic
cation indicate that sorption of PTMA and HDTMA can exceed the saturation of 1 CEC. Both organic montmorillonites have shown higher uptake of the herbicide, compared to the inorganic montmorillonite. Comparing the values Freundlich coefficients in batch equilibrium method, (presented in the form of log Kf and 1/n), it can be seen that the sorption decreases in the series: 0.5CEC> 1CEC> 1.5CEC> NaM, for both organic montmorillonites.
PB  - EGU General Assembly
C3  - Geophysical Research Abstracts Vol. 18, EGU2016-3425, 2016 EGU General Assembly 2016
T1  - Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite
EP  - 3425
SP  - 3425
VL  - 18
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6573
ER  - 

@conference{
author = "Kaluđerović, Lazar and Tomić, Zorica and Đurović, Rada and Milošević, Maja",
year = "2016",
abstract = "Pesticides are recognized as an important source of potential pollution to soil and water due to their mobility and degradation in soils. Results presented in this paper show impact of the organic complex concentration on the adsorption of herbicides (acetochlor) at the surface of the organic modified montmorillonite. In this work, natural montmorillonite from Bogovina, located near Boljevac municipality, was used for organic modification. Cationexchange capacity of this montmorillonite was determined by extraction with ammonium acetate (86 mmol/100g
of clay). Montmorillonite have been modified first with NaCl and than with two organic complexes, hexadecyltrimethylammonium bromide (HDTMA) and phenyltrimethylammonium chloride (PTMA). For both organic complexes, three saturation concentrations were selected for monitoring of the herbicide adsorption (43 mmol/100g of clay (0.5 CEC), 86 mmol/100g of clay (1 CEC) and 129 mmol/100g of clay (1.5 CEC)). Changes in the properties of the inorganic and organic bentonite have been examined using the X-ray powder diffraction (XRPD) andbatch equilibrium method. Increase in basal spacing (d) of montmorillonites saturated with 1.5 CEC of organic
cation indicate that sorption of PTMA and HDTMA can exceed the saturation of 1 CEC. Both organic montmorillonites have shown higher uptake of the herbicide, compared to the inorganic montmorillonite. Comparing the values Freundlich coefficients in batch equilibrium method, (presented in the form of log Kf and 1/n), it can be seen that the sorption decreases in the series: 0.5CEC> 1CEC> 1.5CEC> NaM, for both organic montmorillonites.",
publisher = "EGU General Assembly",
journal = "Geophysical Research Abstracts Vol. 18, EGU2016-3425, 2016 EGU General Assembly 2016",
title = "Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite",
pages = "3425-3425",
volume = "18",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6573"
}

Kaluđerović, L., Tomić, Z., Đurović, R.,& Milošević, M.. (2016). Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite. in Geophysical Research Abstracts Vol. 18, EGU2016-3425, 2016 EGU General Assembly 2016
EGU General Assembly., 18, 3425-3425.
https://hdl.handle.net/21.15107/rcub_agrospace_6573

Kaluđerović L, Tomić Z, Đurović R, Milošević M. Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite. in Geophysical Research Abstracts Vol. 18, EGU2016-3425, 2016 EGU General Assembly 2016. 2016;18:3425-3425.
https://hdl.handle.net/21.15107/rcub_agrospace_6573 .

Kaluđerović, Lazar, Tomić, Zorica, Đurović, Rada, Milošević, Maja, "Influence of the organic complex concentration on adsorption of herbicide in organic modified montmorillonite" in Geophysical Research Abstracts Vol. 18, EGU2016-3425, 2016 EGU General Assembly 2016, 18 (2016):3425-3425,
https://hdl.handle.net/21.15107/rcub_agrospace_6573 .

TY  - JOUR
AU  - Kresović, Branka
AU  - Tapanarova, Angelina
AU  - Tomić, Zorica
AU  - Životić, Ljubomir
AU  - Vujović, Dragan
AU  - Sredojević, Zorica
AU  - Gajić, Boško
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4184
AB  - In Vojvodina region, water deficit during the growing season is a major factor limiting maize production. Therefore, to achieve the ideal soil water content in this region, it is of crucial importance to optimize irrigation. The effects of different irrigation levels with sprinkler irrigation system on crop yield, yield components, water use, water (WUE) and irrigation water use (IWUE) efficiency of maize (Zea mays L) were investigated in Vojvodina (northern Serbia), on a Calcaric Chernozem soil in temperate environment for 3 consecutive years (2006-2008). Maize was subjected to four irrigation regimes, as follows: non limited irrigation (I-100), 75% of non-limited irrigation (I-75), 50% of non-limited irrigation (I-50), and rainfed (non-irrigated) as the control (I-0). The irrigation treatments were arranged in a complete randomized block design with 4 replicates. Results showed that maize grown in rainfed conditions had high annual variability, mainly due to amount of rainfall and its distribution during the crop-growing seasons. A significant irrigation effect was found for yield, yield components and others investigated parameters under study. Water stress had significant impact on yield response: as an average of the three years, a grain yield increase of 47.8, 32.8, and 22.9% was observed in I-100, I-75 and I-50 treatments compared to rainfed (I-0) treatment, respectively. Yield increased linearly with seasonal crop evapotranspiration and irrigation amount. Furthermore, WUE is maximized with a moderate water deficit (I-50), while IWUE is the highest in I-100 treatment. The deficit irrigation stress index, DISI, decreased with increasing irrigation rate. The results revealed that irrigation is necessary for maize cultivation because rainfall is insufficient to meet the crop water needs in Vojvodina. In addition, the study indicated that the irrigation regime of 25% water saving (I-75) could ensure satisfactory grain yield of maize and increment of WUE.
PB  - Elsevier Science Bv, Amsterdam
T2  - Agricultural Water Management
T1  - Grain yield and water use efficiency of maize as influenced by different irrigation regimes through sprinkler irrigation under temperate climate
EP  - 43
SP  - 34
VL  - 169
DO  - 10.1016/j.agwat.2016.01.023
ER  - 

@article{
author = "Kresović, Branka and Tapanarova, Angelina and Tomić, Zorica and Životić, Ljubomir and Vujović, Dragan and Sredojević, Zorica and Gajić, Boško",
year = "2016",
abstract = "In Vojvodina region, water deficit during the growing season is a major factor limiting maize production. Therefore, to achieve the ideal soil water content in this region, it is of crucial importance to optimize irrigation. The effects of different irrigation levels with sprinkler irrigation system on crop yield, yield components, water use, water (WUE) and irrigation water use (IWUE) efficiency of maize (Zea mays L) were investigated in Vojvodina (northern Serbia), on a Calcaric Chernozem soil in temperate environment for 3 consecutive years (2006-2008). Maize was subjected to four irrigation regimes, as follows: non limited irrigation (I-100), 75% of non-limited irrigation (I-75), 50% of non-limited irrigation (I-50), and rainfed (non-irrigated) as the control (I-0). The irrigation treatments were arranged in a complete randomized block design with 4 replicates. Results showed that maize grown in rainfed conditions had high annual variability, mainly due to amount of rainfall and its distribution during the crop-growing seasons. A significant irrigation effect was found for yield, yield components and others investigated parameters under study. Water stress had significant impact on yield response: as an average of the three years, a grain yield increase of 47.8, 32.8, and 22.9% was observed in I-100, I-75 and I-50 treatments compared to rainfed (I-0) treatment, respectively. Yield increased linearly with seasonal crop evapotranspiration and irrigation amount. Furthermore, WUE is maximized with a moderate water deficit (I-50), while IWUE is the highest in I-100 treatment. The deficit irrigation stress index, DISI, decreased with increasing irrigation rate. The results revealed that irrigation is necessary for maize cultivation because rainfall is insufficient to meet the crop water needs in Vojvodina. In addition, the study indicated that the irrigation regime of 25% water saving (I-75) could ensure satisfactory grain yield of maize and increment of WUE.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Agricultural Water Management",
title = "Grain yield and water use efficiency of maize as influenced by different irrigation regimes through sprinkler irrigation under temperate climate",
pages = "43-34",
volume = "169",
doi = "10.1016/j.agwat.2016.01.023"
}

Kresović, B., Tapanarova, A., Tomić, Z., Životić, L., Vujović, D., Sredojević, Z.,& Gajić, B.. (2016). Grain yield and water use efficiency of maize as influenced by different irrigation regimes through sprinkler irrigation under temperate climate. in Agricultural Water Management
Elsevier Science Bv, Amsterdam., 169, 34-43.
https://doi.org/10.1016/j.agwat.2016.01.023

Kresović B, Tapanarova A, Tomić Z, Životić L, Vujović D, Sredojević Z, Gajić B. Grain yield and water use efficiency of maize as influenced by different irrigation regimes through sprinkler irrigation under temperate climate. in Agricultural Water Management. 2016;169:34-43.
doi:10.1016/j.agwat.2016.01.023 .

Kresović, Branka, Tapanarova, Angelina, Tomić, Zorica, Životić, Ljubomir, Vujović, Dragan, Sredojević, Zorica, Gajić, Boško, "Grain yield and water use efficiency of maize as influenced by different irrigation regimes through sprinkler irrigation under temperate climate" in Agricultural Water Management, 169 (2016):34-43,
https://doi.org/10.1016/j.agwat.2016.01.023 . .

TY  - JOUR
AU  - Bijelić, Zorica
AU  - Tomić, Zorica
AU  - Mandić, Violeta
AU  - Ružić-Muslić, Dragana
AU  - Krnjaja, Vesna
AU  - Vučković, Savo
AU  - Simić, Aleksandar
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4121
AB  - The aim of the study was to investigate the effect of N fertilization on dry matter and nitrogen yield and botanical composition of lucerne and its mixtures with grasses, as well as the effect of different levels of N fertilizer on nitrogen utilization efficiency. The study included pure lucerne and lucerne mixtures with grasses and legumes (cocksfoot, tall fescue and sainfoin) and four fertilization treatments with nitrogen (0, 70, 140 and 210 kg ha 1). In a two-year study, it was concluded that lucerne uses nitrogen in fertilizers more efficiently, compared to its mixtures and that the utilization efficiency increases with the increasing share of legumes in the mixture. The four component mixture of lucerne, cocksfoot, tall fescue and sainfoin, of all studied mixtures, was characterized by the largest increase in yield per unit of added nitrogen and the percentage of nitrogen utilization from mineral fertilizers in the relative value of 54.52%. Although the addition of nitrogen lead to a progressive increase in yields, the value of the realized yield per unit of added N decreased. The highest utilization of N from mineral fertilizers was recorded in the treatment with 70 kg N ha(-1) (51.2%).
PB  - National Agricultural Research and Development Institute Fundulea.
T2  - Romanian Agricultural Research
T1  - The efficiency of nitrogen from fertilizer in lucerne cultivated as a pure sward or as a mixture with grasses
IS  - 33
VL  - 2016
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_4121
ER  - 

@article{
author = "Bijelić, Zorica and Tomić, Zorica and Mandić, Violeta and Ružić-Muslić, Dragana and Krnjaja, Vesna and Vučković, Savo and Simić, Aleksandar",
year = "2016",
abstract = "The aim of the study was to investigate the effect of N fertilization on dry matter and nitrogen yield and botanical composition of lucerne and its mixtures with grasses, as well as the effect of different levels of N fertilizer on nitrogen utilization efficiency. The study included pure lucerne and lucerne mixtures with grasses and legumes (cocksfoot, tall fescue and sainfoin) and four fertilization treatments with nitrogen (0, 70, 140 and 210 kg ha 1). In a two-year study, it was concluded that lucerne uses nitrogen in fertilizers more efficiently, compared to its mixtures and that the utilization efficiency increases with the increasing share of legumes in the mixture. The four component mixture of lucerne, cocksfoot, tall fescue and sainfoin, of all studied mixtures, was characterized by the largest increase in yield per unit of added nitrogen and the percentage of nitrogen utilization from mineral fertilizers in the relative value of 54.52%. Although the addition of nitrogen lead to a progressive increase in yields, the value of the realized yield per unit of added N decreased. The highest utilization of N from mineral fertilizers was recorded in the treatment with 70 kg N ha(-1) (51.2%).",
publisher = "National Agricultural Research and Development Institute Fundulea.",
journal = "Romanian Agricultural Research",
title = "The efficiency of nitrogen from fertilizer in lucerne cultivated as a pure sward or as a mixture with grasses",
number = "33",
volume = "2016",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_4121"
}

Bijelić, Z., Tomić, Z., Mandić, V., Ružić-Muslić, D., Krnjaja, V., Vučković, S.,& Simić, A.. (2016). The efficiency of nitrogen from fertilizer in lucerne cultivated as a pure sward or as a mixture with grasses. in Romanian Agricultural Research
National Agricultural Research and Development Institute Fundulea.., 2016(33).
https://hdl.handle.net/21.15107/rcub_agrospace_4121

Bijelić Z, Tomić Z, Mandić V, Ružić-Muslić D, Krnjaja V, Vučković S, Simić A. The efficiency of nitrogen from fertilizer in lucerne cultivated as a pure sward or as a mixture with grasses. in Romanian Agricultural Research. 2016;2016(33).
https://hdl.handle.net/21.15107/rcub_agrospace_4121 .

Bijelić, Zorica, Tomić, Zorica, Mandić, Violeta, Ružić-Muslić, Dragana, Krnjaja, Vesna, Vučković, Savo, Simić, Aleksandar, "The efficiency of nitrogen from fertilizer in lucerne cultivated as a pure sward or as a mixture with grasses" in Romanian Agricultural Research, 2016, no. 33 (2016),
https://hdl.handle.net/21.15107/rcub_agrospace_4121 .

TY  - JOUR
AU  - Bijelić, Zorica
AU  - Tomić, Zorica
AU  - Mandić, Violeta
AU  - Ružić-Muslić, Dragana
AU  - Simić, Aleksandar
AU  - Krnjaja, Vesna
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4122
AB  - The effect of sward structure of the mixtures and nitrogen fertilization on grass-legume silage quality was investigated over two years. The study included Lucerne (Medicago sativa) in monoculture and in mixtures with cocksfoot (Dactylis glomerata), tall fescue (Festuca arundinacea) and sainfoin (Onobrychis sativa). Nitrogen fertilizer was applied to the field plots at four different rates: 0, 70, 140 and 210 kg ha(-1). The quality of lucerne silage was inferior to lucerne silage mixed with grasses due to the greater content of ammonia nitrogen (NH3-N), acetic (AA) and butyric acids (BA), and reduced content of the lactic acid (LA). Gradual increase of N fertilization significantly has increased the content of NH3-N, AA and BA and decreased the content of LA.
PB  - Ankara University
T2  - Tarim Bilimleri Dergisi
T1  - The Effect of Sward Structure and N Fertilization on the Grass-legume Silage Quality
EP  - 68
IS  - 1
SP  - 62
VL  - 22
DO  - 10.1501/tarimbil_0000001368
ER  - 

@article{
author = "Bijelić, Zorica and Tomić, Zorica and Mandić, Violeta and Ružić-Muslić, Dragana and Simić, Aleksandar and Krnjaja, Vesna",
year = "2016",
abstract = "The effect of sward structure of the mixtures and nitrogen fertilization on grass-legume silage quality was investigated over two years. The study included Lucerne (Medicago sativa) in monoculture and in mixtures with cocksfoot (Dactylis glomerata), tall fescue (Festuca arundinacea) and sainfoin (Onobrychis sativa). Nitrogen fertilizer was applied to the field plots at four different rates: 0, 70, 140 and 210 kg ha(-1). The quality of lucerne silage was inferior to lucerne silage mixed with grasses due to the greater content of ammonia nitrogen (NH3-N), acetic (AA) and butyric acids (BA), and reduced content of the lactic acid (LA). Gradual increase of N fertilization significantly has increased the content of NH3-N, AA and BA and decreased the content of LA.",
publisher = "Ankara University",
journal = "Tarim Bilimleri Dergisi",
title = "The Effect of Sward Structure and N Fertilization on the Grass-legume Silage Quality",
pages = "68-62",
number = "1",
volume = "22",
doi = "10.1501/tarimbil_0000001368"
}

Bijelić, Z., Tomić, Z., Mandić, V., Ružić-Muslić, D., Simić, A.,& Krnjaja, V.. (2016). The Effect of Sward Structure and N Fertilization on the Grass-legume Silage Quality. in Tarim Bilimleri Dergisi
Ankara University., 22(1), 62-68.
https://doi.org/10.1501/tarimbil_0000001368

Bijelić Z, Tomić Z, Mandić V, Ružić-Muslić D, Simić A, Krnjaja V. The Effect of Sward Structure and N Fertilization on the Grass-legume Silage Quality. in Tarim Bilimleri Dergisi. 2016;22(1):62-68.
doi:10.1501/tarimbil_0000001368 .

Bijelić, Zorica, Tomić, Zorica, Mandić, Violeta, Ružić-Muslić, Dragana, Simić, Aleksandar, Krnjaja, Vesna, "The Effect of Sward Structure and N Fertilization on the Grass-legume Silage Quality" in Tarim Bilimleri Dergisi, 22, no. 1 (2016):62-68,
https://doi.org/10.1501/tarimbil_0000001368 . .

TY  - JOUR
AU  - Rinklebe, Joerg
AU  - Antić-Mladenović, Svetlana
AU  - Frohne, Tina
AU  - Staerk, Hans-Joachim
AU  - Tomić, Zorica
AU  - Ličina, Vlado
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4134
AB  - We determined redox-induced (im)mobilization of geogenic nickel (Ni) as well as binding forms of Ni in a Fluvisol at the River Velika Morava valley (Serbia), enriched with serpentine minerals. The selected site is representative for intensive agricultural land use in the area and susceptible to dynamic redox conditions due to periodical flooding. A seven-step sequential extraction, grain-size and light-liquid separation as well as mineralogical analyses were used, first, to assess binding forms of Ni and second, to determine relationships between grain-size fractions, abundance of heavy density minerals, and Ni concentration in the bulk soil. The sequential extraction revealed that the majority of Ni was in the residual fraction, followed by organic matter and Fe oxides. Fine grain-size fraction ( lt 63 mu m) was the major location of accumulation of Ni in the soil. Minerals which are characteristic for serpentine soils such as serpentine, spinels, hematite, and magnetite were found in silt and in the heavy density fraction (>2.9 g ml(-1)) of the medium and fine sand. However, the light minerals quartz, chlorite, micas, and secondary clay minerals dominate the soil mineral composition. Thus, total Ni concentration in the soil is derived from the content of Ni-bearing minerals and diluted by the minerals which are low in Ni. We simulated flooding using an automated biogeochemical microcosm system and determined the release dynamics of Ni at controlled redox potentials (E-H) in soil slurries. Pre-defined redox-windows were systematically created in steps of approximately 100 mV from reducing to oxidizing conditions while E-H and pH were continuously monitored. In parallel, the release dynamics of soluble nickel (Ni), iron (Fe), magnesium (Mg), manganese (Mn), dissolved inorganic carbon (DIC), dissolved organic carbon (DOC), and sulfate (SO42-) were measured at each E-H-window. Our results highlighted that geogenic Ni can be mobilized to a considerable amount during low E-H, while elevating E-H from reducing to oxidizing conditions generated an immobilization Ni. We suggested that mobilization of Ni has been primarily affected by formation of Ni DOC complexes at low E-H, whereas Ni seems to be immobilized as a result of formation of Fe/Mn (hydro)oxides and the linked co-precipitation of Ni during oxidation. Factor analysis (FA) as multivariate statistical method explained 85.08% of the variance (67.89% and 17.19% component Nos. 1 and 2, respectively). The FA reveals that soluble Ni, Fe, DOC, Mn, and Mg were clustered in one group which indicate that the combined effect of DOC together with the chemistry of Fe, Mn, and Mg might be linked to the redox-induced release dynamics of Ni. The practical perspective of the study was to draw attention to dynamics of soluble Ni in fluctuating conditions for a better ecological risk assessment of floodplain sites under agricultural use. Nevertheless, similar studies should be conducted with further serpentine soils from various sites world-wide to verify the detected dynamics and processes.
PB  - Elsevier, Amsterdam
T2  - Geoderma
T1  - Nickel in a serpentine-enriched Fluvisol: Redox affected dynamics and binding forms
EP  - 214
SP  - 203
VL  - 263
DO  - 10.1016/j.geoderma.2015.09.004
ER  - 

@article{
author = "Rinklebe, Joerg and Antić-Mladenović, Svetlana and Frohne, Tina and Staerk, Hans-Joachim and Tomić, Zorica and Ličina, Vlado",
year = "2016",
abstract = "We determined redox-induced (im)mobilization of geogenic nickel (Ni) as well as binding forms of Ni in a Fluvisol at the River Velika Morava valley (Serbia), enriched with serpentine minerals. The selected site is representative for intensive agricultural land use in the area and susceptible to dynamic redox conditions due to periodical flooding. A seven-step sequential extraction, grain-size and light-liquid separation as well as mineralogical analyses were used, first, to assess binding forms of Ni and second, to determine relationships between grain-size fractions, abundance of heavy density minerals, and Ni concentration in the bulk soil. The sequential extraction revealed that the majority of Ni was in the residual fraction, followed by organic matter and Fe oxides. Fine grain-size fraction ( lt 63 mu m) was the major location of accumulation of Ni in the soil. Minerals which are characteristic for serpentine soils such as serpentine, spinels, hematite, and magnetite were found in silt and in the heavy density fraction (>2.9 g ml(-1)) of the medium and fine sand. However, the light minerals quartz, chlorite, micas, and secondary clay minerals dominate the soil mineral composition. Thus, total Ni concentration in the soil is derived from the content of Ni-bearing minerals and diluted by the minerals which are low in Ni. We simulated flooding using an automated biogeochemical microcosm system and determined the release dynamics of Ni at controlled redox potentials (E-H) in soil slurries. Pre-defined redox-windows were systematically created in steps of approximately 100 mV from reducing to oxidizing conditions while E-H and pH were continuously monitored. In parallel, the release dynamics of soluble nickel (Ni), iron (Fe), magnesium (Mg), manganese (Mn), dissolved inorganic carbon (DIC), dissolved organic carbon (DOC), and sulfate (SO42-) were measured at each E-H-window. Our results highlighted that geogenic Ni can be mobilized to a considerable amount during low E-H, while elevating E-H from reducing to oxidizing conditions generated an immobilization Ni. We suggested that mobilization of Ni has been primarily affected by formation of Ni DOC complexes at low E-H, whereas Ni seems to be immobilized as a result of formation of Fe/Mn (hydro)oxides and the linked co-precipitation of Ni during oxidation. Factor analysis (FA) as multivariate statistical method explained 85.08% of the variance (67.89% and 17.19% component Nos. 1 and 2, respectively). The FA reveals that soluble Ni, Fe, DOC, Mn, and Mg were clustered in one group which indicate that the combined effect of DOC together with the chemistry of Fe, Mn, and Mg might be linked to the redox-induced release dynamics of Ni. The practical perspective of the study was to draw attention to dynamics of soluble Ni in fluctuating conditions for a better ecological risk assessment of floodplain sites under agricultural use. Nevertheless, similar studies should be conducted with further serpentine soils from various sites world-wide to verify the detected dynamics and processes.",
publisher = "Elsevier, Amsterdam",
journal = "Geoderma",
title = "Nickel in a serpentine-enriched Fluvisol: Redox affected dynamics and binding forms",
pages = "214-203",
volume = "263",
doi = "10.1016/j.geoderma.2015.09.004"
}

Rinklebe, J., Antić-Mladenović, S., Frohne, T., Staerk, H., Tomić, Z.,& Ličina, V.. (2016). Nickel in a serpentine-enriched Fluvisol: Redox affected dynamics and binding forms. in Geoderma
Elsevier, Amsterdam., 263, 203-214.
https://doi.org/10.1016/j.geoderma.2015.09.004

Rinklebe J, Antić-Mladenović S, Frohne T, Staerk H, Tomić Z, Ličina V. Nickel in a serpentine-enriched Fluvisol: Redox affected dynamics and binding forms. in Geoderma. 2016;263:203-214.
doi:10.1016/j.geoderma.2015.09.004 .

Rinklebe, Joerg, Antić-Mladenović, Svetlana, Frohne, Tina, Staerk, Hans-Joachim, Tomić, Zorica, Ličina, Vlado, "Nickel in a serpentine-enriched Fluvisol: Redox affected dynamics and binding forms" in Geoderma, 263 (2016):203-214,
https://doi.org/10.1016/j.geoderma.2015.09.004 . .

TY  - JOUR
AU  - Tomić, Zorica
AU  - Kaludjerović, Lazar
AU  - Nikolić, Nataša
AU  - Marković, Smilja
AU  - Makreski, Petre
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4117
AB  - Results presented in this paper are pioneering attempt toward better understanding of the thermal stability of acetochlor sorption in inorganic and organic montmorillonites. Changes in surface properties of acetochlor adsorbed on montmorillonites and montmorillonites modified with hexadecyltrimethylammonium bromide have been investigated by thermogravimetry, derivative thermogravimetry and infrared spectroscopy. The mass loss, as a result of the heating treatment, indicates release of free water, transformation of hydrophilic to hydrophobic surface, the release of acetochlor sorbed on the montmorillonite, the release of acetochlor sorbed on the montmorillonite and dehydroxylation of the structural OH units.
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Thermal investigation of acetochlor adsorption on inorganic- and organic-modified montmorillonite
EP  - 2319
IS  - 3
SP  - 2313
VL  - 123
DO  - 10.1007/s10973-015-5102-2
ER  - 

@article{
author = "Tomić, Zorica and Kaludjerović, Lazar and Nikolić, Nataša and Marković, Smilja and Makreski, Petre",
year = "2016",
abstract = "Results presented in this paper are pioneering attempt toward better understanding of the thermal stability of acetochlor sorption in inorganic and organic montmorillonites. Changes in surface properties of acetochlor adsorbed on montmorillonites and montmorillonites modified with hexadecyltrimethylammonium bromide have been investigated by thermogravimetry, derivative thermogravimetry and infrared spectroscopy. The mass loss, as a result of the heating treatment, indicates release of free water, transformation of hydrophilic to hydrophobic surface, the release of acetochlor sorbed on the montmorillonite, the release of acetochlor sorbed on the montmorillonite and dehydroxylation of the structural OH units.",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Thermal investigation of acetochlor adsorption on inorganic- and organic-modified montmorillonite",
pages = "2319-2313",
number = "3",
volume = "123",
doi = "10.1007/s10973-015-5102-2"
}

Tomić, Z., Kaludjerović, L., Nikolić, N., Marković, S.,& Makreski, P.. (2016). Thermal investigation of acetochlor adsorption on inorganic- and organic-modified montmorillonite. in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 123(3), 2313-2319.
https://doi.org/10.1007/s10973-015-5102-2

Tomić Z, Kaludjerović L, Nikolić N, Marković S, Makreski P. Thermal investigation of acetochlor adsorption on inorganic- and organic-modified montmorillonite. in Journal of Thermal Analysis and Calorimetry. 2016;123(3):2313-2319.
doi:10.1007/s10973-015-5102-2 .

Tomić, Zorica, Kaludjerović, Lazar, Nikolić, Nataša, Marković, Smilja, Makreski, Petre, "Thermal investigation of acetochlor adsorption on inorganic- and organic-modified montmorillonite" in Journal of Thermal Analysis and Calorimetry, 123, no. 3 (2016):2313-2319,
https://doi.org/10.1007/s10973-015-5102-2 . .

TY  - JOUR
AU  - Tomić, Zorica
AU  - Ašanin, Darko P.
AU  - Durović-Pejcev, Rada D.
AU  - Djordjević, Aleksandar
AU  - Makreski, Petre
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3832
AB  - The results of sorption of acetochlor herbicide with different concentrations (1-15 mu g/mL) in inorganic- and organic-modified bentonite are presented. Acetochlor sorption in both bentonite types was studied by attenuated total reflectance spectroscopy in the mid-infrared region and by batch equilibrium method. Infrared spectroscopy results suggest that the interaction of acetochlor with inorganic (or organic) bentonite takes place by mechanism involving the carbonyl stretching vibration and phenyl ring in the acetochlor molecule. The increase of the acetochlor concentration results in red shift of both corresponding band wavenumbers. Batch adsorption study pointed out more expressed sorption of acetochlor in organic bentonite.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Spectroscopy Letters
T1  - Adsorption of Acetochlor Herbicide on Inorganic- and Organic-Modified Bentonite Monitored by Mid-Infrared Spectroscopy and Batch Adsorption
EP  - 690
IS  - 9
SP  - 685
VL  - 48
DO  - 10.1080/00387010.2014.962705
ER  - 

@article{
author = "Tomić, Zorica and Ašanin, Darko P. and Durović-Pejcev, Rada D. and Djordjević, Aleksandar and Makreski, Petre",
year = "2015",
abstract = "The results of sorption of acetochlor herbicide with different concentrations (1-15 mu g/mL) in inorganic- and organic-modified bentonite are presented. Acetochlor sorption in both bentonite types was studied by attenuated total reflectance spectroscopy in the mid-infrared region and by batch equilibrium method. Infrared spectroscopy results suggest that the interaction of acetochlor with inorganic (or organic) bentonite takes place by mechanism involving the carbonyl stretching vibration and phenyl ring in the acetochlor molecule. The increase of the acetochlor concentration results in red shift of both corresponding band wavenumbers. Batch adsorption study pointed out more expressed sorption of acetochlor in organic bentonite.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Spectroscopy Letters",
title = "Adsorption of Acetochlor Herbicide on Inorganic- and Organic-Modified Bentonite Monitored by Mid-Infrared Spectroscopy and Batch Adsorption",
pages = "690-685",
number = "9",
volume = "48",
doi = "10.1080/00387010.2014.962705"
}

Tomić, Z., Ašanin, D. P., Durović-Pejcev, R. D., Djordjević, A.,& Makreski, P.. (2015). Adsorption of Acetochlor Herbicide on Inorganic- and Organic-Modified Bentonite Monitored by Mid-Infrared Spectroscopy and Batch Adsorption. in Spectroscopy Letters
Taylor & Francis Inc, Philadelphia., 48(9), 685-690.
https://doi.org/10.1080/00387010.2014.962705

Tomić Z, Ašanin DP, Durović-Pejcev RD, Djordjević A, Makreski P. Adsorption of Acetochlor Herbicide on Inorganic- and Organic-Modified Bentonite Monitored by Mid-Infrared Spectroscopy and Batch Adsorption. in Spectroscopy Letters. 2015;48(9):685-690.
doi:10.1080/00387010.2014.962705 .

Tomić, Zorica, Ašanin, Darko P., Durović-Pejcev, Rada D., Djordjević, Aleksandar, Makreski, Petre, "Adsorption of Acetochlor Herbicide on Inorganic- and Organic-Modified Bentonite Monitored by Mid-Infrared Spectroscopy and Batch Adsorption" in Spectroscopy Letters, 48, no. 9 (2015):685-690,
https://doi.org/10.1080/00387010.2014.962705 . .

TY  - JOUR
AU  - Dugonjić, Mladen
AU  - Radmanović, Svjetlana
AU  - Djordjević, Aleksandar
AU  - Tomić, Zorica
AU  - Nikolić, Nataša
AU  - Tanasić, Ljiljana
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3938
AB  - Water holding capacities and saturated hydraulic conductivity of Planosols in south Mačva and Pocerina (Serbia) were compared to assess how different types of land use (forest, arable and grassland) influence soils endangered by stagnating water. These changes came from decrease of total porosity and changes in pores size distribution in arable and grass land compared to forest land. Changes of water characteristics of arable and grassland Planosols compared to forest Planosols were statistically most significant in illuvial horizon Btg (absence of root network and fauna activity). It is important to emphasize: (i) surface A horizon of arable and grass land compared to forest showed insignificant increase of plant available water and significant decrease of saturated hydraulic conductivity (ii) significant decrease of saturation and macro porosity increased the risk of oxygen deficiency in Planosols in wet periods of year in this order: arable land > grassland > forest.
AB  - Cilj rada je utvrđivanje promena u vodnim kapacitetima i vodopropusnosti planosola na području Mačve i Pocerine zbog pretvaranja šuma u travnjake i njive. Promena načina korišćenja značajno je uticala na vodne kapacitete, ali ne i na vodopropusnost. Generalno u poređenju sa šumama, u njivama i travnjacima je došlo do smanjenja MVK i povećanja vrednosti PVK, LVK i VV. Navedene promene su posledica smanjenja ukupne poroznosti i promene diferencijalne poroznosti. Promene u njivama i travnjacima su najznačajnije u Btg horizontu (odustvo korenovog sistema i faune), zatim u A horizontu (smanjenje korenovog sistema, aktivnosti faune i sadržaja humusa), a najmanje u Eg horizontu (manja promena poroznosti zbog nestrukturnosti). Sa agroekološkog aspekta je važno istaći da u A horizontu njiva i travnjaka u poređenju sa šumama povećanje KPV i smanjenje SHC nije značajno; značajno smanjenje MVK i makroporoznosti povećava rizik od nedostatka kiseonika u vlažnom delu godine ovim redom: njive > travnjaci > šume.
PB  - Institut za ratarstvo i povrtarstvo, Novi Sad
T2  - Ratarstvo i povrtarstvo
T1  - Impact of land use on water characteristics of Planosols (south Mačva and Pocerina, Serbia)
T1  - Uticaj načina korišćenja na vodne karakteristike planosola (južna Mačva i Pocerina, Srbija)
EP  - 60
IS  - 2
SP  - 52
VL  - 52
DO  - 10.5937/ratpov52-7669
ER  - 

@article{
author = "Dugonjić, Mladen and Radmanović, Svjetlana and Djordjević, Aleksandar and Tomić, Zorica and Nikolić, Nataša and Tanasić, Ljiljana",
year = "2015",
abstract = "Water holding capacities and saturated hydraulic conductivity of Planosols in south Mačva and Pocerina (Serbia) were compared to assess how different types of land use (forest, arable and grassland) influence soils endangered by stagnating water. These changes came from decrease of total porosity and changes in pores size distribution in arable and grass land compared to forest land. Changes of water characteristics of arable and grassland Planosols compared to forest Planosols were statistically most significant in illuvial horizon Btg (absence of root network and fauna activity). It is important to emphasize: (i) surface A horizon of arable and grass land compared to forest showed insignificant increase of plant available water and significant decrease of saturated hydraulic conductivity (ii) significant decrease of saturation and macro porosity increased the risk of oxygen deficiency in Planosols in wet periods of year in this order: arable land > grassland > forest., Cilj rada je utvrđivanje promena u vodnim kapacitetima i vodopropusnosti planosola na području Mačve i Pocerine zbog pretvaranja šuma u travnjake i njive. Promena načina korišćenja značajno je uticala na vodne kapacitete, ali ne i na vodopropusnost. Generalno u poređenju sa šumama, u njivama i travnjacima je došlo do smanjenja MVK i povećanja vrednosti PVK, LVK i VV. Navedene promene su posledica smanjenja ukupne poroznosti i promene diferencijalne poroznosti. Promene u njivama i travnjacima su najznačajnije u Btg horizontu (odustvo korenovog sistema i faune), zatim u A horizontu (smanjenje korenovog sistema, aktivnosti faune i sadržaja humusa), a najmanje u Eg horizontu (manja promena poroznosti zbog nestrukturnosti). Sa agroekološkog aspekta je važno istaći da u A horizontu njiva i travnjaka u poređenju sa šumama povećanje KPV i smanjenje SHC nije značajno; značajno smanjenje MVK i makroporoznosti povećava rizik od nedostatka kiseonika u vlažnom delu godine ovim redom: njive > travnjaci > šume.",
publisher = "Institut za ratarstvo i povrtarstvo, Novi Sad",
journal = "Ratarstvo i povrtarstvo",
title = "Impact of land use on water characteristics of Planosols (south Mačva and Pocerina, Serbia), Uticaj načina korišćenja na vodne karakteristike planosola (južna Mačva i Pocerina, Srbija)",
pages = "60-52",
number = "2",
volume = "52",
doi = "10.5937/ratpov52-7669"
}

Dugonjić, M., Radmanović, S., Djordjević, A., Tomić, Z., Nikolić, N.,& Tanasić, L.. (2015). Impact of land use on water characteristics of Planosols (south Mačva and Pocerina, Serbia). in Ratarstvo i povrtarstvo
Institut za ratarstvo i povrtarstvo, Novi Sad., 52(2), 52-60.
https://doi.org/10.5937/ratpov52-7669

Dugonjić M, Radmanović S, Djordjević A, Tomić Z, Nikolić N, Tanasić L. Impact of land use on water characteristics of Planosols (south Mačva and Pocerina, Serbia). in Ratarstvo i povrtarstvo. 2015;52(2):52-60.
doi:10.5937/ratpov52-7669 .

Dugonjić, Mladen, Radmanović, Svjetlana, Djordjević, Aleksandar, Tomić, Zorica, Nikolić, Nataša, Tanasić, Ljiljana, "Impact of land use on water characteristics of Planosols (south Mačva and Pocerina, Serbia)" in Ratarstvo i povrtarstvo, 52, no. 2 (2015):52-60,
https://doi.org/10.5937/ratpov52-7669 . .

TY  - CONF
AU  - Nikolić, Nataša
AU  - Đorđević, Aleksandar
AU  - Tomić, Zorica
AU  - Kaluđerović, Lazar
AU  - Životić, Ljubomir
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6574
AB  - U radu su prikazane osobine zemljišta sa lokaliteta severoistočno od planine Vujan, koji je na Geološkoj mapi SFRJ označen kao stena piroklastit. Uzorci
zemljišta su uzeti do dubine od 61 cm, iz horizonata: O (0-3 cm), A (3-17 cm), AC
(17-23 cm) i C (23-61cm). C horizont je tuf u raspadanju. Osnovna svojstva zemljišta
su ispitana standardnim metodama, a imajući u vidu da se na tufovima obrazuju
Andosoli, analizirane su i osobine koje su pokazatelji andičnih svojstava zemljišta. Prisustvo amorfnih minerala je analizirano po metodi Fieldes and Perrott
(pH u NaF). Retencija fosfata je određena po novozelandskoj metodi. Mineraloški sastav zemljišta je određen pomoću XRD analize. Aktivna kiselost ispitivanih
uzoraka zemljišta je u intervalu od 3,8 do 4,1. Sadržaj organske materije u humusno-akumulativnom horizontu je 5,1%, a u prelaznom 1,4%. Reakcija zemljišta
u 1M NaF se kretala u intervalu od 8,2 do 8,8, što je pokazatelj značajnog udela
amorfnih minerala u adsorptivnom kompleksu zemljišta. Vrednosti retencije fosfata su opadale sa dubinom od 51% do38%. Zapreminska masa humusno akumulativnog horizonta je 0,88 g cm-3, dok specifična masa zemljišta varira u intervalu
od 2,26 gcm-3 do 2,38 gcm-3. U horizontima A i C su identifikovani različiti kristalni
minerali. Difrakrogrami oba uzorka su pokazali šum na 2 do 6 Å, što ukazuje na
prisutne amorfne minerale. Testovi koji su pokazatelji andičnih osobina su dali
različite rezulate i ukazali na neke osobine slične andičnim, ali ne sve tako da se
dato zemljište nije moglo klasifikovati kao Andosol (IUSS working group WRB,
2014). Prema klasifikaciji zemljišta Jugoslavije (Škorić i sar., 1985) ovo zemljište
pripada tipu ranker
PB  - Institut za ratarstvo i povrtastvo Novi Sad
C3  - Naučno stučni skup "Održivo korišćenje zemljišta".
T1  - Osobine zemljišta obrazovanog na piroklastičnim sedimentnim stenama.
EP  - 19
SP  - 13
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6574
ER  - 

@conference{
author = "Nikolić, Nataša and Đorđević, Aleksandar and Tomić, Zorica and Kaluđerović, Lazar and Životić, Ljubomir",
year = "2015",
abstract = "U radu su prikazane osobine zemljišta sa lokaliteta severoistočno od planine Vujan, koji je na Geološkoj mapi SFRJ označen kao stena piroklastit. Uzorci
zemljišta su uzeti do dubine od 61 cm, iz horizonata: O (0-3 cm), A (3-17 cm), AC
(17-23 cm) i C (23-61cm). C horizont je tuf u raspadanju. Osnovna svojstva zemljišta
su ispitana standardnim metodama, a imajući u vidu da se na tufovima obrazuju
Andosoli, analizirane su i osobine koje su pokazatelji andičnih svojstava zemljišta. Prisustvo amorfnih minerala je analizirano po metodi Fieldes and Perrott
(pH u NaF). Retencija fosfata je određena po novozelandskoj metodi. Mineraloški sastav zemljišta je određen pomoću XRD analize. Aktivna kiselost ispitivanih
uzoraka zemljišta je u intervalu od 3,8 do 4,1. Sadržaj organske materije u humusno-akumulativnom horizontu je 5,1%, a u prelaznom 1,4%. Reakcija zemljišta
u 1M NaF se kretala u intervalu od 8,2 do 8,8, što je pokazatelj značajnog udela
amorfnih minerala u adsorptivnom kompleksu zemljišta. Vrednosti retencije fosfata su opadale sa dubinom od 51% do38%. Zapreminska masa humusno akumulativnog horizonta je 0,88 g cm-3, dok specifična masa zemljišta varira u intervalu
od 2,26 gcm-3 do 2,38 gcm-3. U horizontima A i C su identifikovani različiti kristalni
minerali. Difrakrogrami oba uzorka su pokazali šum na 2 do 6 Å, što ukazuje na
prisutne amorfne minerale. Testovi koji su pokazatelji andičnih osobina su dali
različite rezulate i ukazali na neke osobine slične andičnim, ali ne sve tako da se
dato zemljište nije moglo klasifikovati kao Andosol (IUSS working group WRB,
2014). Prema klasifikaciji zemljišta Jugoslavije (Škorić i sar., 1985) ovo zemljište
pripada tipu ranker",
publisher = "Institut za ratarstvo i povrtastvo Novi Sad",
journal = "Naučno stučni skup "Održivo korišćenje zemljišta".",
title = "Osobine zemljišta obrazovanog na piroklastičnim sedimentnim stenama.",
pages = "19-13",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6574"
}

Nikolić, N., Đorđević, A., Tomić, Z., Kaluđerović, L.,& Životić, L.. (2015). Osobine zemljišta obrazovanog na piroklastičnim sedimentnim stenama.. in Naučno stučni skup "Održivo korišćenje zemljišta".
Institut za ratarstvo i povrtastvo Novi Sad., 13-19.
https://hdl.handle.net/21.15107/rcub_agrospace_6574

Nikolić N, Đorđević A, Tomić Z, Kaluđerović L, Životić L. Osobine zemljišta obrazovanog na piroklastičnim sedimentnim stenama.. in Naučno stučni skup "Održivo korišćenje zemljišta".. 2015;:13-19.
https://hdl.handle.net/21.15107/rcub_agrospace_6574 .

Nikolić, Nataša, Đorđević, Aleksandar, Tomić, Zorica, Kaluđerović, Lazar, Životić, Ljubomir, "Osobine zemljišta obrazovanog na piroklastičnim sedimentnim stenama." in Naučno stučni skup "Održivo korišćenje zemljišta". (2015):13-19,
https://hdl.handle.net/21.15107/rcub_agrospace_6574 .

TY  - JOUR
AU  - Kresović, Branka
AU  - Gajić, Boško
AU  - Tapanarova, Angelina
AU  - Pejić, Borivoj
AU  - Tomić, Zorica
AU  - Vujović, Dragan
AU  - Životić, Ljubomir
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3922
AB  - In the Vojvodina region, drought is an important factor limiting grain yield in maize. The aims of this research were to compare irrigation scheduling in maize (cv. ZP SC 684), and to evaluate grain yield and ear characteristics. A 3-year field experiment was carried out in the Vojvodina region, a northern part of the Republic of Serbia (384 mm of rainfall in the maize-growing period). Maize was subjected to four irrigation levels (rainfed - I0 and supply at 80-85% - I1, 70-75% - I2 and 60-65% - I3 of field capacity). The results indicated a large yearly variability, mainly due to a rainfall event at the flowering, fertilization and grain filling stages. A significant irrigation effect was observed for all the variables under study, with significant differences between the three irrigation treatments. The grain yield ranged between 8.73 and 16.33 t ha-1. The highest grain yield of maize (average of 15.08 t ha-1) was in the I1 treatment, while the non-irrigated (I0) treatment had the lowest yield (average of 10.20 t ha-1), a 35% grain yield reduction. With the decrease of irrigation water, the grain yield of maize decreased. The most distinctive impact the irrigation had on maize yield was during the warm and very dry growth period of the year of 2008. Maize in the Vojvodina region can be cultivated with acceptable yields while saving irrigation water and maximizing resource-use efficiency.
AB  - U Vojvodini, suša je važan faktor koji ograničava prinos kukuruza. Ciljevi ovog istraživanja bili su upoređivanje prirodnog i različitih irigacionih vodnih režima u kukuruzu (cv. ZP SC 684 - FAO 600), ocena prinosa i osobina klipa. Trogodišnja eksperimentalna istraživanja obavljena su u Zemun Polju (Vojvodini), odnosno u severnom delu Republike Srbije (dvadesetogodišnji prosek padavina u vegetacionom periodu kukuruza je 384 mm). Ispitivan je efekat četiri varijante vodnog režima kukuruza: I0 - bez navodnjavanja, I1 - sadržaj vode u zemljištu održavan je na nivou 80-85% poljskog vodnog kapaciteta (PVK) dopunskim navodnjavanjem kišenjem, I2 - 70-75% PVK i I3 - 60-65% PVK. Rezultati su pokazali veliku varijabilnost između godina, uglavnom zbog pojave padavina u fenofazi cvetanja, oplodnje i nalivanja zrna. Navodnjavanje je značajno uticalo na prinos zrna, karakteristike klipa i visinu biljaka kukuruza. Takođe, utvrđene su značajne razlike i između navodnjavanih varijanti. Prinos zrna varirao je između 8,73 i 16,33 t ha-1. Najveći prinos kukuruza (prosečno 15,08 t ha-1) ostvaren je u varijanti I1, a najmanji (10,20 t ha-1) u nenavodnjavanoj (I0) varijanti. Prinos se smanjivao i do 35% sa smanjenjem količine vode za navodnjavanje. Najizraženiji efekat dopunskog navodnjavanja na prinos zrna kukuruza ostvaren je u toplom i veoma sušnom vegetacionom periodu 2008. godine. Kukuruz u Vojvodini može da se gaji sa prihvatljivim prinosima uz uštedu vode za navodnjavanje, što će rezultirati efikasnijim korišćenjem vodnih resursa.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd
T2  - Journal of Agricultural Sciences (Belgrade)
T1  - Effects of deficit irrigation on grain yield and ear characteristics of maize
T1  - Uticaj deficitarnog navodnjavanja na prinos zrna i karakteristike klipa kukuruza
EP  - 433
IS  - 4
SP  - 419
VL  - 60
DO  - 10.2298/JAS1504419K
ER  - 

@article{
author = "Kresović, Branka and Gajić, Boško and Tapanarova, Angelina and Pejić, Borivoj and Tomić, Zorica and Vujović, Dragan and Životić, Ljubomir",
year = "2015",
abstract = "In the Vojvodina region, drought is an important factor limiting grain yield in maize. The aims of this research were to compare irrigation scheduling in maize (cv. ZP SC 684), and to evaluate grain yield and ear characteristics. A 3-year field experiment was carried out in the Vojvodina region, a northern part of the Republic of Serbia (384 mm of rainfall in the maize-growing period). Maize was subjected to four irrigation levels (rainfed - I0 and supply at 80-85% - I1, 70-75% - I2 and 60-65% - I3 of field capacity). The results indicated a large yearly variability, mainly due to a rainfall event at the flowering, fertilization and grain filling stages. A significant irrigation effect was observed for all the variables under study, with significant differences between the three irrigation treatments. The grain yield ranged between 8.73 and 16.33 t ha-1. The highest grain yield of maize (average of 15.08 t ha-1) was in the I1 treatment, while the non-irrigated (I0) treatment had the lowest yield (average of 10.20 t ha-1), a 35% grain yield reduction. With the decrease of irrigation water, the grain yield of maize decreased. The most distinctive impact the irrigation had on maize yield was during the warm and very dry growth period of the year of 2008. Maize in the Vojvodina region can be cultivated with acceptable yields while saving irrigation water and maximizing resource-use efficiency., U Vojvodini, suša je važan faktor koji ograničava prinos kukuruza. Ciljevi ovog istraživanja bili su upoređivanje prirodnog i različitih irigacionih vodnih režima u kukuruzu (cv. ZP SC 684 - FAO 600), ocena prinosa i osobina klipa. Trogodišnja eksperimentalna istraživanja obavljena su u Zemun Polju (Vojvodini), odnosno u severnom delu Republike Srbije (dvadesetogodišnji prosek padavina u vegetacionom periodu kukuruza je 384 mm). Ispitivan je efekat četiri varijante vodnog režima kukuruza: I0 - bez navodnjavanja, I1 - sadržaj vode u zemljištu održavan je na nivou 80-85% poljskog vodnog kapaciteta (PVK) dopunskim navodnjavanjem kišenjem, I2 - 70-75% PVK i I3 - 60-65% PVK. Rezultati su pokazali veliku varijabilnost između godina, uglavnom zbog pojave padavina u fenofazi cvetanja, oplodnje i nalivanja zrna. Navodnjavanje je značajno uticalo na prinos zrna, karakteristike klipa i visinu biljaka kukuruza. Takođe, utvrđene su značajne razlike i između navodnjavanih varijanti. Prinos zrna varirao je između 8,73 i 16,33 t ha-1. Najveći prinos kukuruza (prosečno 15,08 t ha-1) ostvaren je u varijanti I1, a najmanji (10,20 t ha-1) u nenavodnjavanoj (I0) varijanti. Prinos se smanjivao i do 35% sa smanjenjem količine vode za navodnjavanje. Najizraženiji efekat dopunskog navodnjavanja na prinos zrna kukuruza ostvaren je u toplom i veoma sušnom vegetacionom periodu 2008. godine. Kukuruz u Vojvodini može da se gaji sa prihvatljivim prinosima uz uštedu vode za navodnjavanje, što će rezultirati efikasnijim korišćenjem vodnih resursa.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd",
journal = "Journal of Agricultural Sciences (Belgrade)",
title = "Effects of deficit irrigation on grain yield and ear characteristics of maize, Uticaj deficitarnog navodnjavanja na prinos zrna i karakteristike klipa kukuruza",
pages = "433-419",
number = "4",
volume = "60",
doi = "10.2298/JAS1504419K"
}

Kresović, B., Gajić, B., Tapanarova, A., Pejić, B., Tomić, Z., Vujović, D.,& Životić, L.. (2015). Effects of deficit irrigation on grain yield and ear characteristics of maize. in Journal of Agricultural Sciences (Belgrade)
Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd., 60(4), 419-433.
https://doi.org/10.2298/JAS1504419K

Kresović B, Gajić B, Tapanarova A, Pejić B, Tomić Z, Vujović D, Životić L. Effects of deficit irrigation on grain yield and ear characteristics of maize. in Journal of Agricultural Sciences (Belgrade). 2015;60(4):419-433.
doi:10.2298/JAS1504419K .

Kresović, Branka, Gajić, Boško, Tapanarova, Angelina, Pejić, Borivoj, Tomić, Zorica, Vujović, Dragan, Životić, Ljubomir, "Effects of deficit irrigation on grain yield and ear characteristics of maize" in Journal of Agricultural Sciences (Belgrade), 60, no. 4 (2015):419-433,
https://doi.org/10.2298/JAS1504419K . .

TY  - JOUR
AU  - Krga, Ivan
AU  - Simić, Aleksandar
AU  - Vučković, Savo
AU  - Bijelić, Zorica
AU  - Mandić, Violeta
AU  - Tomić, Zorica
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3996
AB  - The aim of researh was to determine the effect of different amounts of nitrogen fertilizer on production and quality traits of pure lucerne crop and its mixtures with cocksfoot and meadow fescue. The research included pure lucerne crop (A1) and its mixtures with cocksfoot and meadow fescue in different combination (A2- 50% lucerne and 50% cocksfoot, A3- 50% lucerne, 25% cocksfoot and 25% meadow fescue, A4- 25% lucerne, 50% cocksfoot and 25% meadow fescue). Sowing was done in the fall with a raw spacing of 20 cm. Fertilization with nitrogen was done in early spring, with two treatment: 50 kg N ha-1, 100 kg N ha-1 and control without fertilization. Type of mixture had significant effect on dry matter yield, crude protein content, ADF, NDF and NFE, while amount of nitrogen fertilizer had effect on dry matter and crude protein yield.
AB  - Cilj ovih istrazivanja je da se ispita uticaj različitih količina azota iz mineralnih đubriva na proizvodne i kvalitativne osobine lucerke u monokulturi i u smeši sa jezevicom i livadskim vijukom. Istraživanja su obuhvatila cist usev lucerke (A1) i njene smeše sa jezevicom i livadskim vijukom u različitim kombinacijama (A2- 50% lucerke i 50% jezevice, A3- 50% lucerke, 25% jezevice i 25% livadskog vijuka, A4- 25% lucerke, 50% jezevice i 25% livadskog vijuka). Jesenja setva je obavljena u redove sa međurednim rastojanjem od 20 cm. Prihrana azotom je obavljena u proleće, sa kretanjem vegetacije u dva tretmana: 50 (B2) i 100 kg ha-1 (B3) i kontrolom bez primene azota (Bl). Vrsta smeše je imala statistički značajnog uticaja na prinos suve mase, sirovih proteina, ADF-a, NDF-a, BEM-a, dok je količina primenjenog azota imala uticaj na prinos suve materije i sirovih proteina.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - The effect of nitrogen fertilization on dry matter yield of lucerne and legume-grass mixtures
T1  - Uticaj azotnog đubrenja na prinos suve materije lucerke i njenih smeša sa ježevicom i livadskim vijukom
EP  - 141
IS  - 1-2
SP  - 133
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3996
ER  - 

@article{
author = "Krga, Ivan and Simić, Aleksandar and Vučković, Savo and Bijelić, Zorica and Mandić, Violeta and Tomić, Zorica",
year = "2015",
abstract = "The aim of researh was to determine the effect of different amounts of nitrogen fertilizer on production and quality traits of pure lucerne crop and its mixtures with cocksfoot and meadow fescue. The research included pure lucerne crop (A1) and its mixtures with cocksfoot and meadow fescue in different combination (A2- 50% lucerne and 50% cocksfoot, A3- 50% lucerne, 25% cocksfoot and 25% meadow fescue, A4- 25% lucerne, 50% cocksfoot and 25% meadow fescue). Sowing was done in the fall with a raw spacing of 20 cm. Fertilization with nitrogen was done in early spring, with two treatment: 50 kg N ha-1, 100 kg N ha-1 and control without fertilization. Type of mixture had significant effect on dry matter yield, crude protein content, ADF, NDF and NFE, while amount of nitrogen fertilizer had effect on dry matter and crude protein yield., Cilj ovih istrazivanja je da se ispita uticaj različitih količina azota iz mineralnih đubriva na proizvodne i kvalitativne osobine lucerke u monokulturi i u smeši sa jezevicom i livadskim vijukom. Istraživanja su obuhvatila cist usev lucerke (A1) i njene smeše sa jezevicom i livadskim vijukom u različitim kombinacijama (A2- 50% lucerke i 50% jezevice, A3- 50% lucerke, 25% jezevice i 25% livadskog vijuka, A4- 25% lucerke, 50% jezevice i 25% livadskog vijuka). Jesenja setva je obavljena u redove sa međurednim rastojanjem od 20 cm. Prihrana azotom je obavljena u proleće, sa kretanjem vegetacije u dva tretmana: 50 (B2) i 100 kg ha-1 (B3) i kontrolom bez primene azota (Bl). Vrsta smeše je imala statistički značajnog uticaja na prinos suve mase, sirovih proteina, ADF-a, NDF-a, BEM-a, dok je količina primenjenog azota imala uticaj na prinos suve materije i sirovih proteina.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "The effect of nitrogen fertilization on dry matter yield of lucerne and legume-grass mixtures, Uticaj azotnog đubrenja na prinos suve materije lucerke i njenih smeša sa ježevicom i livadskim vijukom",
pages = "141-133",
number = "1-2",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3996"
}

Krga, I., Simić, A., Vučković, S., Bijelić, Z., Mandić, V.,& Tomić, Z.. (2015). The effect of nitrogen fertilization on dry matter yield of lucerne and legume-grass mixtures. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 21(1-2), 133-141.
https://hdl.handle.net/21.15107/rcub_agrospace_3996

Krga I, Simić A, Vučković S, Bijelić Z, Mandić V, Tomić Z. The effect of nitrogen fertilization on dry matter yield of lucerne and legume-grass mixtures. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2015;21(1-2):133-141.
https://hdl.handle.net/21.15107/rcub_agrospace_3996 .

Krga, Ivan, Simić, Aleksandar, Vučković, Savo, Bijelić, Zorica, Mandić, Violeta, Tomić, Zorica, "The effect of nitrogen fertilization on dry matter yield of lucerne and legume-grass mixtures" in Zbornik naučnih radova Instituta PKB Agroekonomik, 21, no. 1-2 (2015):133-141,
https://hdl.handle.net/21.15107/rcub_agrospace_3996 .

TY  - JOUR
AU  - Mandić, Violeta
AU  - Krnjaja, Vesna
AU  - Tomić, Zorica
AU  - Bijelić, Zorica
AU  - Simić, Aleksandar
AU  - Ružić-Muslić, Dragana
AU  - Gogić, Marija
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3774
AB  - Managing N inputs in wheat production systems is an important issue in order to achieve maximum profitable production, and minimum negative environmental impact. The aim of this investigation carried out in dry land farming in the Vojvodina province (Serbia) was to estimate the effects of different N fertilization levels (0, 75, and 150 kg N ha(-1)) on some quantitative traits, rain-use efficiency (RUE), N agronomic efficiency (NAE), and N use efficiency (NUE) in two Serbian winter wheat (Triticum aestivum L.) cultivars 'Pobeda' and 'Renesansa'. 'Pobeda' had higher grain yield (4437 kg ha(-1)) and RUE (8.32 kg ha(-1) mm(-1)) than 'Renesansa' (4265 kg ha(-1) and 8 kg ha(-1) mm(-1), respectively). Grain yield (4652 kg ha(-1)) and NUE (31.46 kg kg(-1) N) were higher in the 2010-2011 season (favorable weather conditions) than in the 2011-2012 (4050 kg ha(-1) and 27.59 kg kg(-1) N, respectively). The highly significant effect on grain yield (4396 and 4494 kg ha(-1)), RUE (8.24 and 8.45 kg ha(-1) mm(-1)), NAE (3.11 and 2.21 kg kg(-1) N) and NUE (58.62 and 29.96 kg kg(-1) N) had levels of 75 and 150 kg N ha(-1). NAE and NUE declined at high N rates. Based on the results of this study, farmers should be advised that the use of large amounts of N increases production costs and reduce the economic benefits. The increase in wheat production is possible by selecting adapted genotypes with improved NUE.
PB  - Inst Investigaciones Agropecuarias, Chillan
T2  - Chilean Journal of Agricultural Research
T1  - Nitrogen fertilizer influence on wheat yield and use efficiency under different environmental conditions
EP  - 97
IS  - 1
SP  - 92
VL  - 75
DO  - 10.4067/S0718-58392015000100013
ER  - 

@article{
author = "Mandić, Violeta and Krnjaja, Vesna and Tomić, Zorica and Bijelić, Zorica and Simić, Aleksandar and Ružić-Muslić, Dragana and Gogić, Marija",
year = "2015",
abstract = "Managing N inputs in wheat production systems is an important issue in order to achieve maximum profitable production, and minimum negative environmental impact. The aim of this investigation carried out in dry land farming in the Vojvodina province (Serbia) was to estimate the effects of different N fertilization levels (0, 75, and 150 kg N ha(-1)) on some quantitative traits, rain-use efficiency (RUE), N agronomic efficiency (NAE), and N use efficiency (NUE) in two Serbian winter wheat (Triticum aestivum L.) cultivars 'Pobeda' and 'Renesansa'. 'Pobeda' had higher grain yield (4437 kg ha(-1)) and RUE (8.32 kg ha(-1) mm(-1)) than 'Renesansa' (4265 kg ha(-1) and 8 kg ha(-1) mm(-1), respectively). Grain yield (4652 kg ha(-1)) and NUE (31.46 kg kg(-1) N) were higher in the 2010-2011 season (favorable weather conditions) than in the 2011-2012 (4050 kg ha(-1) and 27.59 kg kg(-1) N, respectively). The highly significant effect on grain yield (4396 and 4494 kg ha(-1)), RUE (8.24 and 8.45 kg ha(-1) mm(-1)), NAE (3.11 and 2.21 kg kg(-1) N) and NUE (58.62 and 29.96 kg kg(-1) N) had levels of 75 and 150 kg N ha(-1). NAE and NUE declined at high N rates. Based on the results of this study, farmers should be advised that the use of large amounts of N increases production costs and reduce the economic benefits. The increase in wheat production is possible by selecting adapted genotypes with improved NUE.",
publisher = "Inst Investigaciones Agropecuarias, Chillan",
journal = "Chilean Journal of Agricultural Research",
title = "Nitrogen fertilizer influence on wheat yield and use efficiency under different environmental conditions",
pages = "97-92",
number = "1",
volume = "75",
doi = "10.4067/S0718-58392015000100013"
}

Mandić, V., Krnjaja, V., Tomić, Z., Bijelić, Z., Simić, A., Ružić-Muslić, D.,& Gogić, M.. (2015). Nitrogen fertilizer influence on wheat yield and use efficiency under different environmental conditions. in Chilean Journal of Agricultural Research
Inst Investigaciones Agropecuarias, Chillan., 75(1), 92-97.
https://doi.org/10.4067/S0718-58392015000100013

Mandić V, Krnjaja V, Tomić Z, Bijelić Z, Simić A, Ružić-Muslić D, Gogić M. Nitrogen fertilizer influence on wheat yield and use efficiency under different environmental conditions. in Chilean Journal of Agricultural Research. 2015;75(1):92-97.
doi:10.4067/S0718-58392015000100013 .

Mandić, Violeta, Krnjaja, Vesna, Tomić, Zorica, Bijelić, Zorica, Simić, Aleksandar, Ružić-Muslić, Dragana, Gogić, Marija, "Nitrogen fertilizer influence on wheat yield and use efficiency under different environmental conditions" in Chilean Journal of Agricultural Research, 75, no. 1 (2015):92-97,
https://doi.org/10.4067/S0718-58392015000100013 . .

TY  - JOUR
AU  - Mandić, Violeta
AU  - Krnjaja, Vesna
AU  - Bijelić, Zorica
AU  - Tomić, Zorica
AU  - Simić, Aleksandar
AU  - Ružić-Muslić, Dragana
AU  - Stanojković, A.
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3580
AB  - Red clover is highly salt-sensitive plant, especially during germination and early seedling growth stages. The aim of this investigation was to estimate the effects of different saline conditions (0, 50, 100, 150, and 200mM NaCl) on germination and early seedling growth in four red clover varieties (Kolubara, K-32, K-17 and K-39). Germination test was conducted in the laboratory conditions using sterile plastic vessels on filter paper moistened with 10ml of the appropriate salt test solutions. It was observed that the germination energy (GE), germination (G), percentage of dead or infected seeds (DIS), normal seedlings (NS), root length (RL), shoot length (ShL), fresh weight (FW) and dry weight of seedling (DW) and seedling vigor index (SVI) were significantly decreased with increasing concentrations of NaCl in the growing medium. The tested varieties of red clover showed different NaCl tolerance at the seedling stage. Generally, studied red clover varieties are very sensitive to salt, especially K-32 which has the lowest values for GE, G, NS and SVI and highest for DIS. Variety K-17 proved to be a variety that the best tolerates conditions of salt stress because the values for GE, G, NS, RL and SVI were highest. Testing of varieties of red clover in the early seedling growth at different concentrations of NaCl in the growing medium could be helpful in the identification and selection of varieties for cultivation on saline soils.
AB  - Crvena detelina je vrlo osetljiva biljka na veću koncentarciju soli, posebno tokom klijanja i rane faze porasta klijanaca. Cilj ovog istraživanja bio je da se proceni uticaj različite zaslanjenosti (0, 50, 100, 150 i 200mM NaCl) na klijanje i rani porast klijanaca četiri sorte crvene deteline (Kolubara, K-32, K-17 i K-39). Test klijavosti sproveden je u laboratorijskim uslovima u sterilnim plastičnim posudama na filter papiru natopljenom sa 10 ml odgovarajuće koncentracije soli. Uočeno je da energija klijanja (EK), klijavost (K), neklijala i bolesna semena (NB), normalni klijanci (NK), dužina korena (DK), dužina hipokotila (DH), sveža (SvMK) i suva masa klijanaca (SuMK) i vigor indeks klijanaca (VIK) se značajno smanjuju sa povećanjem koncentracije NaCl u podlogama za naklijavanje. Ispitivane sorte imale su različitu toleranciju na soni stres u fazi klijanaca. Generalno, proučavane sorte su veoma osetljive na veću koncentraciju soli, posebno K-32 koja je imala najniže vrednosti za EK, K, NK i VIK, kao i najveći broj NB. Sorta K-17 se pokazala kao sorta koja najbolje toleriše soni stres jer su vrednosti za EK, K, NK, DK i VIK bile najviše. Testiranje sorti crvene deteline u ranom porastu klijanaca na podlogama za naklijavanje sa različitom koncentracijom NaCl može pomoći u indentifikaciji i izboru sorti za gajenje na zaslanjenim zemljištima.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - Genetic variability of red clover seedlings in relation to salt stress
T1  - Genetička varijabilnost klijanaca crvene deteline u odnosu na soni stres
EP  - 538
IS  - 3
SP  - 529
VL  - 30
DO  - 10.2298/BAH1403529M
ER  - 

@article{
author = "Mandić, Violeta and Krnjaja, Vesna and Bijelić, Zorica and Tomić, Zorica and Simić, Aleksandar and Ružić-Muslić, Dragana and Stanojković, A.",
year = "2014",
abstract = "Red clover is highly salt-sensitive plant, especially during germination and early seedling growth stages. The aim of this investigation was to estimate the effects of different saline conditions (0, 50, 100, 150, and 200mM NaCl) on germination and early seedling growth in four red clover varieties (Kolubara, K-32, K-17 and K-39). Germination test was conducted in the laboratory conditions using sterile plastic vessels on filter paper moistened with 10ml of the appropriate salt test solutions. It was observed that the germination energy (GE), germination (G), percentage of dead or infected seeds (DIS), normal seedlings (NS), root length (RL), shoot length (ShL), fresh weight (FW) and dry weight of seedling (DW) and seedling vigor index (SVI) were significantly decreased with increasing concentrations of NaCl in the growing medium. The tested varieties of red clover showed different NaCl tolerance at the seedling stage. Generally, studied red clover varieties are very sensitive to salt, especially K-32 which has the lowest values for GE, G, NS and SVI and highest for DIS. Variety K-17 proved to be a variety that the best tolerates conditions of salt stress because the values for GE, G, NS, RL and SVI were highest. Testing of varieties of red clover in the early seedling growth at different concentrations of NaCl in the growing medium could be helpful in the identification and selection of varieties for cultivation on saline soils., Crvena detelina je vrlo osetljiva biljka na veću koncentarciju soli, posebno tokom klijanja i rane faze porasta klijanaca. Cilj ovog istraživanja bio je da se proceni uticaj različite zaslanjenosti (0, 50, 100, 150 i 200mM NaCl) na klijanje i rani porast klijanaca četiri sorte crvene deteline (Kolubara, K-32, K-17 i K-39). Test klijavosti sproveden je u laboratorijskim uslovima u sterilnim plastičnim posudama na filter papiru natopljenom sa 10 ml odgovarajuće koncentracije soli. Uočeno je da energija klijanja (EK), klijavost (K), neklijala i bolesna semena (NB), normalni klijanci (NK), dužina korena (DK), dužina hipokotila (DH), sveža (SvMK) i suva masa klijanaca (SuMK) i vigor indeks klijanaca (VIK) se značajno smanjuju sa povećanjem koncentracije NaCl u podlogama za naklijavanje. Ispitivane sorte imale su različitu toleranciju na soni stres u fazi klijanaca. Generalno, proučavane sorte su veoma osetljive na veću koncentraciju soli, posebno K-32 koja je imala najniže vrednosti za EK, K, NK i VIK, kao i najveći broj NB. Sorta K-17 se pokazala kao sorta koja najbolje toleriše soni stres jer su vrednosti za EK, K, NK, DK i VIK bile najviše. Testiranje sorti crvene deteline u ranom porastu klijanaca na podlogama za naklijavanje sa različitom koncentracijom NaCl može pomoći u indentifikaciji i izboru sorti za gajenje na zaslanjenim zemljištima.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Genetic variability of red clover seedlings in relation to salt stress, Genetička varijabilnost klijanaca crvene deteline u odnosu na soni stres",
pages = "538-529",
number = "3",
volume = "30",
doi = "10.2298/BAH1403529M"
}

Mandić, V., Krnjaja, V., Bijelić, Z., Tomić, Z., Simić, A., Ružić-Muslić, D.,& Stanojković, A.. (2014). Genetic variability of red clover seedlings in relation to salt stress. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 30(3), 529-538.
https://doi.org/10.2298/BAH1403529M

Mandić V, Krnjaja V, Bijelić Z, Tomić Z, Simić A, Ružić-Muslić D, Stanojković A. Genetic variability of red clover seedlings in relation to salt stress. in Biotechnology in Animal Husbandry. 2014;30(3):529-538.
doi:10.2298/BAH1403529M .

Mandić, Violeta, Krnjaja, Vesna, Bijelić, Zorica, Tomić, Zorica, Simić, Aleksandar, Ružić-Muslić, Dragana, Stanojković, A., "Genetic variability of red clover seedlings in relation to salt stress" in Biotechnology in Animal Husbandry, 30, no. 3 (2014):529-538,
https://doi.org/10.2298/BAH1403529M . .

TY  - CONF
AU  - Nikolić, Nataša
AU  - Đorđević, Aleksandar
AU  - Tomić, Zorica
AU  - Kaluđerović, Lazar
AU  - Životić, Ljubomir
PY  - 2013
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6765
AB  - This study aimed to analyze properties of the soil formed on amorphous material. Pyroclastic rocks were recognized and mapped on the Geological Map of SFR Yugoslavia in the scale 1:100 000. Investigated soil profile is located northeast from Vujan mountain (43° 58’ 21.8’’ N, 20° 29’ 58.4’’ E, 667 m a.s.l.) on a hilly forest terrain with mild slope.
Soil profile depth was 61 cm and it was differentiated into O - horizon (0-3 cm), A – horizon (3-17 cm), AC – intermediate horizon (17-23 cm) and C - horizon (23-61cm) horizon. Parent material was recognized as a weathered tuff.
Active and exchangeable acidity were measured by pH meter. Presence of amorphous material was tested using method of Fieldes of Perrott (pH in NaF). Organic matter content was determined by Tjurin method, and particle size analysis by sedimentation and pipette method. Bulk density was determined using cylinders and specific gravity by picnometer while phosphate retention was determined by New Zealand method.
Mineral composition was determined by XRD analysis on Philips PW1051 diffractometer, under following conditions: U = 36 kV; I = 18 mA; velocity 10/ min; Rc = 4/2. XRD analysis was performed on air-dry; ethylene-glycol saturated and heated (550°С) samples of surface horizon (A horizon) and of parent material (C horizon).
Reaction in water suspension (1:2.5) was extremely acid (3.8 to 4.1). Test with 1M NaF gave values from 8.2 to 8.8. A NaF pH of 8.4 or more indicates a significant component of short-range-order minerals in the exchange complex. Organic matter content was 5.1% in A horizon and 1.4% in AC horizon. Phosphate retention decreased with depth, from 51% to 38%.
Specific gravity of soil particles ranged from 2.26 gcm-3, in surface horizon, to 2.38 gcm-3 in parent material, while the bulk density of surface horizon was 0.88 gcm-3. Particle size analysis showed indicated uniform texture along the soil profile. Silt size fraction prevailed in soil, and it slightly increased with depth, from 80.1% to 84.4%. The studied soil had silt loam texture.
Mineral analysis of the surface horizon revealed presence of quartz, biotite, vermiculite, feldspars, etc. Diffractograms of the parent material indicated presence of quartz, lepidomelane, vermiculite, biotite, etc. Diffractograms of samples from surface horizon and parent material showed background from 2 to 6 Å, which is indicative of amorphous material.
The analyses have revealed some andic properties of this soil.
PB  - Serbian Society of Soil Science
C3  - The 1st International Congress on Soil Science XIII National Congress in Soil Science, Belgrade, Serbia
T1  - BASIC PROPERTIES OF THE SOIL FORMED ON A PYROCLASTIC ROCK
SP  - 95
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6765
ER  - 

@conference{
author = "Nikolić, Nataša and Đorđević, Aleksandar and Tomić, Zorica and Kaluđerović, Lazar and Životić, Ljubomir",
year = "2013",
abstract = "This study aimed to analyze properties of the soil formed on amorphous material. Pyroclastic rocks were recognized and mapped on the Geological Map of SFR Yugoslavia in the scale 1:100 000. Investigated soil profile is located northeast from Vujan mountain (43° 58’ 21.8’’ N, 20° 29’ 58.4’’ E, 667 m a.s.l.) on a hilly forest terrain with mild slope.
Soil profile depth was 61 cm and it was differentiated into O - horizon (0-3 cm), A – horizon (3-17 cm), AC – intermediate horizon (17-23 cm) and C - horizon (23-61cm) horizon. Parent material was recognized as a weathered tuff.
Active and exchangeable acidity were measured by pH meter. Presence of amorphous material was tested using method of Fieldes of Perrott (pH in NaF). Organic matter content was determined by Tjurin method, and particle size analysis by sedimentation and pipette method. Bulk density was determined using cylinders and specific gravity by picnometer while phosphate retention was determined by New Zealand method.
Mineral composition was determined by XRD analysis on Philips PW1051 diffractometer, under following conditions: U = 36 kV; I = 18 mA; velocity 10/ min; Rc = 4/2. XRD analysis was performed on air-dry; ethylene-glycol saturated and heated (550°С) samples of surface horizon (A horizon) and of parent material (C horizon).
Reaction in water suspension (1:2.5) was extremely acid (3.8 to 4.1). Test with 1M NaF gave values from 8.2 to 8.8. A NaF pH of 8.4 or more indicates a significant component of short-range-order minerals in the exchange complex. Organic matter content was 5.1% in A horizon and 1.4% in AC horizon. Phosphate retention decreased with depth, from 51% to 38%.
Specific gravity of soil particles ranged from 2.26 gcm-3, in surface horizon, to 2.38 gcm-3 in parent material, while the bulk density of surface horizon was 0.88 gcm-3. Particle size analysis showed indicated uniform texture along the soil profile. Silt size fraction prevailed in soil, and it slightly increased with depth, from 80.1% to 84.4%. The studied soil had silt loam texture.
Mineral analysis of the surface horizon revealed presence of quartz, biotite, vermiculite, feldspars, etc. Diffractograms of the parent material indicated presence of quartz, lepidomelane, vermiculite, biotite, etc. Diffractograms of samples from surface horizon and parent material showed background from 2 to 6 Å, which is indicative of amorphous material.
The analyses have revealed some andic properties of this soil.",
publisher = "Serbian Society of Soil Science",
journal = "The 1st International Congress on Soil Science XIII National Congress in Soil Science, Belgrade, Serbia",
title = "BASIC PROPERTIES OF THE SOIL FORMED ON A PYROCLASTIC ROCK",
pages = "95",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6765"
}

Nikolić, N., Đorđević, A., Tomić, Z., Kaluđerović, L.,& Životić, L.. (2013). BASIC PROPERTIES OF THE SOIL FORMED ON A PYROCLASTIC ROCK. in The 1st International Congress on Soil Science XIII National Congress in Soil Science, Belgrade, Serbia
Serbian Society of Soil Science., 95.
https://hdl.handle.net/21.15107/rcub_agrospace_6765

Nikolić N, Đorđević A, Tomić Z, Kaluđerović L, Životić L. BASIC PROPERTIES OF THE SOIL FORMED ON A PYROCLASTIC ROCK. in The 1st International Congress on Soil Science XIII National Congress in Soil Science, Belgrade, Serbia. 2013;:95.
https://hdl.handle.net/21.15107/rcub_agrospace_6765 .

Nikolić, Nataša, Đorđević, Aleksandar, Tomić, Zorica, Kaluđerović, Lazar, Životić, Ljubomir, "BASIC PROPERTIES OF THE SOIL FORMED ON A PYROCLASTIC ROCK" in The 1st International Congress on Soil Science XIII National Congress in Soil Science, Belgrade, Serbia (2013):95,
https://hdl.handle.net/21.15107/rcub_agrospace_6765 .

TY  - JOUR
AU  - Dugonjić, Mladen
AU  - Cupać, Svjetlana
AU  - Djordjević, Aleksandar
AU  - Vićentijević, Mila
AU  - Knežević, Milan
AU  - Tomić, Zorica
PY  - 2013
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3226
AB  - The scope of this paper was to examine the influence of two subtypes of pseudogley soil (of planes and of slopes) and three different land uses (forest, grassland and arable land) on the content and composition of humus in south Mačva and Pocerina. The humus content was determined by dichromate method, and humus components were measured using the method proposed by Kononova and Belcikova. The studied soils are mostly characterized by low humus content. Humus content is significantly higher in pseudogleys of plains compared to pseudogleys of slopes. Pseudogleys under grass and crops have significantly lower content of humus compared to the pseudogleys under forest. Important characteristic of humus composition of surface horizon is dominant portion of fulvic over humic acids. Pseudogleys of plains have statistically significant higher amount of humic acids. The composition of humus is significantly different in pseudogley under forest compared to pseudogleys under grass and crops: it has more fulvic acids, less humin, and lower Ch:Cf ratio. Changes in pseudogley land use have produced better humus quality.
AB  - Cilj ovog rada je ispitivanje uticaja dva podtipa pseudogleja (ravničarskog i obronačnog) i tri načina korišćenja (šuma, travnjak, njiva) na sadržaj i grupno-frakcioni sastav humusa na području južne Mačve i Pocerine. Ispitivana zemljišta generalno karakteriše uglavnom nizak sadržaj humusa. Statistički značajno je sadržaj humusa veći u ravničarskom podtipu pseudogleja u poređenju sa obronačnim. U pseudogleju pod travnom vegetacijom i na obradivim površinama došlo je do statistički značajnog smanjenja sadržaja humusa u poređenju sa pseudoglejom pod šumom. Bitna karakteristika grupno-frakcionog sastava humusa površinskog horizonta je dominacija fulvo nad huminskim kiselinama. Ravničarski pseudoglej sadrži statistički značajno više huminskih kiselina. Sastav humusa se značajno razlikuje u pseudogleju pod šumom u poređenju sa pseudoglejom pod travom i njivom: sadrži više fulvo kiselina, a manje humina i ima uži Ch:Cf odnos. Promena načina korišćenja pseudogleja dovela je do poboljšanja osobina humusa, odnosno donekle dovela do stabilizacije humusa i umanjila njegove inače veoma loše osobine.
PB  - Univerzitet u Beogradu - Šumarski fakultet, Beograd
T2  - Glasnik Šumarskog fakulteta
T1  - The content and composition of humus in pseudogleys of slopes and plains in South Mačva and Pocerina
T1  - Sadržaj i grupno-frakcioni sastav humusa u ravničarskom i obronačnom pseudogleju južne Mačve i Pocerine
EP  - 86
IS  - 107
SP  - 71
DO  - 10.2298/GSF1307067D
ER  - 

@article{
author = "Dugonjić, Mladen and Cupać, Svjetlana and Djordjević, Aleksandar and Vićentijević, Mila and Knežević, Milan and Tomić, Zorica",
year = "2013",
abstract = "The scope of this paper was to examine the influence of two subtypes of pseudogley soil (of planes and of slopes) and three different land uses (forest, grassland and arable land) on the content and composition of humus in south Mačva and Pocerina. The humus content was determined by dichromate method, and humus components were measured using the method proposed by Kononova and Belcikova. The studied soils are mostly characterized by low humus content. Humus content is significantly higher in pseudogleys of plains compared to pseudogleys of slopes. Pseudogleys under grass and crops have significantly lower content of humus compared to the pseudogleys under forest. Important characteristic of humus composition of surface horizon is dominant portion of fulvic over humic acids. Pseudogleys of plains have statistically significant higher amount of humic acids. The composition of humus is significantly different in pseudogley under forest compared to pseudogleys under grass and crops: it has more fulvic acids, less humin, and lower Ch:Cf ratio. Changes in pseudogley land use have produced better humus quality., Cilj ovog rada je ispitivanje uticaja dva podtipa pseudogleja (ravničarskog i obronačnog) i tri načina korišćenja (šuma, travnjak, njiva) na sadržaj i grupno-frakcioni sastav humusa na području južne Mačve i Pocerine. Ispitivana zemljišta generalno karakteriše uglavnom nizak sadržaj humusa. Statistički značajno je sadržaj humusa veći u ravničarskom podtipu pseudogleja u poređenju sa obronačnim. U pseudogleju pod travnom vegetacijom i na obradivim površinama došlo je do statistički značajnog smanjenja sadržaja humusa u poređenju sa pseudoglejom pod šumom. Bitna karakteristika grupno-frakcionog sastava humusa površinskog horizonta je dominacija fulvo nad huminskim kiselinama. Ravničarski pseudoglej sadrži statistički značajno više huminskih kiselina. Sastav humusa se značajno razlikuje u pseudogleju pod šumom u poređenju sa pseudoglejom pod travom i njivom: sadrži više fulvo kiselina, a manje humina i ima uži Ch:Cf odnos. Promena načina korišćenja pseudogleja dovela je do poboljšanja osobina humusa, odnosno donekle dovela do stabilizacije humusa i umanjila njegove inače veoma loše osobine.",
publisher = "Univerzitet u Beogradu - Šumarski fakultet, Beograd",
journal = "Glasnik Šumarskog fakulteta",
title = "The content and composition of humus in pseudogleys of slopes and plains in South Mačva and Pocerina, Sadržaj i grupno-frakcioni sastav humusa u ravničarskom i obronačnom pseudogleju južne Mačve i Pocerine",
pages = "86-71",
number = "107",
doi = "10.2298/GSF1307067D"
}

Dugonjić, M., Cupać, S., Djordjević, A., Vićentijević, M., Knežević, M.,& Tomić, Z.. (2013). The content and composition of humus in pseudogleys of slopes and plains in South Mačva and Pocerina. in Glasnik Šumarskog fakulteta
Univerzitet u Beogradu - Šumarski fakultet, Beograd.(107), 71-86.
https://doi.org/10.2298/GSF1307067D

Dugonjić M, Cupać S, Djordjević A, Vićentijević M, Knežević M, Tomić Z. The content and composition of humus in pseudogleys of slopes and plains in South Mačva and Pocerina. in Glasnik Šumarskog fakulteta. 2013;(107):71-86.
doi:10.2298/GSF1307067D .

Dugonjić, Mladen, Cupać, Svjetlana, Djordjević, Aleksandar, Vićentijević, Mila, Knežević, Milan, Tomić, Zorica, "The content and composition of humus in pseudogleys of slopes and plains in South Mačva and Pocerina" in Glasnik Šumarskog fakulteta, no. 107 (2013):71-86,
https://doi.org/10.2298/GSF1307067D . .

TY  - JOUR
AU  - Gajić, Boško
AU  - Tapanarova, Angelina
AU  - Tomić, Zorica
AU  - Kresović, Branka
AU  - Vujović, Dragan
AU  - Pejić, Borivoj
PY  - 2013
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3149
AB  - The aim of this study was to investigate the effects of land use changes on the aggregate size distribution, soil structural stability, and soil erodibility in Luvisols on Central Serbia's rainfed farms at a depth of 0.00-0.30 m. Six sites, selected for the study, contained adjacent land uses of natural grassland and arable land that have undergone conversion from grassland for more than 10 years. The inherent problems of Luvisols include weak structured surface horizons susceptible to structure deterioration, where tilled when wet or when heavy machinery is used. Aggregate size distribution and soil structural stability in the topsoil was tested by soil dry and wet sieving. Soil erodibility was assessed with the USLE-K factor. The natural grassland served as a control against which to assess changes in soil properties resulting from the removal of natural vegetation or cultivation of soil. The results showed that conversion of natural grassland to dry land farming led to a significant degradation of the soil structure. Aggregate separation by dry-sieving indicated that the natural grassland had significantly fewer unfavorable cloddy aggregates (>10 mm) and more agronomically most valuable aggregates (0.25-10 mm) than the arable soils. The mean weight diameter of dry aggregates (MWDdry) was greater in the grassland (7.0 mm) compared to the arable soils (9.7 mm). The arable soil had significantly lower (1.03) structure coefficient (Ks) than grassland soils (2.77). Higher percentages of water stable aggregates (WSA) >0.25 mm were found under natural grassland (50 %) than in arable fields (41 %). In addition, grassland soil had significantly higher mean weight diameter (0.92 mm) of wet stable aggregates (MWDwet) than arable soils (0.81 mm). Tillage of the unaltered grassland significantly increased the soil erodibility measured by the USLE-K factor. The USLE-K factor was approximately by 17% greater in the arable soil than in the grassland, indicating the vulnerability of the arable soil to water erosion. In summary, the results showed that the tillage of the grassland degraded the soil structure, leaving soils more susceptible to the erosion in the temperate climate zone. This suggests that land disturbances should be avoided in the grasslands in the study region of the Central Serbia.
T2  - Australian Journal of Crop Science
T1  - Land use effects on aggregation and erodibility of luvisols on undulating slopes
EP  - 1204
IS  - 8
SP  - 1198
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3149
ER  - 

@article{
author = "Gajić, Boško and Tapanarova, Angelina and Tomić, Zorica and Kresović, Branka and Vujović, Dragan and Pejić, Borivoj",
year = "2013",
abstract = "The aim of this study was to investigate the effects of land use changes on the aggregate size distribution, soil structural stability, and soil erodibility in Luvisols on Central Serbia's rainfed farms at a depth of 0.00-0.30 m. Six sites, selected for the study, contained adjacent land uses of natural grassland and arable land that have undergone conversion from grassland for more than 10 years. The inherent problems of Luvisols include weak structured surface horizons susceptible to structure deterioration, where tilled when wet or when heavy machinery is used. Aggregate size distribution and soil structural stability in the topsoil was tested by soil dry and wet sieving. Soil erodibility was assessed with the USLE-K factor. The natural grassland served as a control against which to assess changes in soil properties resulting from the removal of natural vegetation or cultivation of soil. The results showed that conversion of natural grassland to dry land farming led to a significant degradation of the soil structure. Aggregate separation by dry-sieving indicated that the natural grassland had significantly fewer unfavorable cloddy aggregates (>10 mm) and more agronomically most valuable aggregates (0.25-10 mm) than the arable soils. The mean weight diameter of dry aggregates (MWDdry) was greater in the grassland (7.0 mm) compared to the arable soils (9.7 mm). The arable soil had significantly lower (1.03) structure coefficient (Ks) than grassland soils (2.77). Higher percentages of water stable aggregates (WSA) >0.25 mm were found under natural grassland (50 %) than in arable fields (41 %). In addition, grassland soil had significantly higher mean weight diameter (0.92 mm) of wet stable aggregates (MWDwet) than arable soils (0.81 mm). Tillage of the unaltered grassland significantly increased the soil erodibility measured by the USLE-K factor. The USLE-K factor was approximately by 17% greater in the arable soil than in the grassland, indicating the vulnerability of the arable soil to water erosion. In summary, the results showed that the tillage of the grassland degraded the soil structure, leaving soils more susceptible to the erosion in the temperate climate zone. This suggests that land disturbances should be avoided in the grasslands in the study region of the Central Serbia.",
journal = "Australian Journal of Crop Science",
title = "Land use effects on aggregation and erodibility of luvisols on undulating slopes",
pages = "1204-1198",
number = "8",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3149"
}

Gajić, B., Tapanarova, A., Tomić, Z., Kresović, B., Vujović, D.,& Pejić, B.. (2013). Land use effects on aggregation and erodibility of luvisols on undulating slopes. in Australian Journal of Crop Science, 7(8), 1198-1204.
https://hdl.handle.net/21.15107/rcub_agrospace_3149

Gajić B, Tapanarova A, Tomić Z, Kresović B, Vujović D, Pejić B. Land use effects on aggregation and erodibility of luvisols on undulating slopes. in Australian Journal of Crop Science. 2013;7(8):1198-1204.
https://hdl.handle.net/21.15107/rcub_agrospace_3149 .

Gajić, Boško, Tapanarova, Angelina, Tomić, Zorica, Kresović, Branka, Vujović, Dragan, Pejić, Borivoj, "Land use effects on aggregation and erodibility of luvisols on undulating slopes" in Australian Journal of Crop Science, 7, no. 8 (2013):1198-1204,
https://hdl.handle.net/21.15107/rcub_agrospace_3149 .