TY  - JOUR
AU  - Krogstad, Tore
AU  - Zivanovic, Valentina
AU  - Simic, Aleksandar
AU  - Aksic, Milica Fotiric
AU  - Licina, Vlado
AU  - Meland, Mekjell
PY  - 2023
UR  - https://www.mdpi.com/2073-4395/13/10/2570
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6488
AB  - The mineralization of nitrogen in apple orchard soil will increase the soil supply. An incubation study to test the soil potential and the validity of analytical methods was conducted at 3, 8, 15, and 20 °C for up to 128 days on soils from western and south-eastern Norway. Soils with the highest pH showed the highest mineralization. The mineralization increased with increasing temperature and time, but start-up N reduced mineralization. The mineralization cannot be estimated from standard soil chemical parameters because the different C/N ratio indicates organic material of different origin and quality. The increase in NO3-N started very quickly and ranged from 17 to 182% and 12 to 64% after 8 days at 3 °C and 20 °C, respectively. There was no correlation between total N in the soil and the amount of mineralized N. On average, the mineralization increased by 5–7% for a change of 1 °C in the interval from 8 to 15 °C in the soil. The chemical extraction method using heated KCl correlated well with the mineralization data. On average, the chemical method estimated 30 kg N ha−1, which corresponded to 0.48% of total N. Recommendations for N fertilization based on total N in the soil overestimate the contribution of plant-available N in most cases.
T2  - Agronomy
T2  - Agronomy
T1  - Nitrogen Mineralization of Apple Orchard Soils in Regions of Western and South-Eastern Norway
IS  - 10
SP  - 2570
VL  - 13
DO  - 10.3390/agronomy13102570
ER  - 

@article{
author = "Krogstad, Tore and Zivanovic, Valentina and Simic, Aleksandar and Aksic, Milica Fotiric and Licina, Vlado and Meland, Mekjell",
year = "2023",
abstract = "The mineralization of nitrogen in apple orchard soil will increase the soil supply. An incubation study to test the soil potential and the validity of analytical methods was conducted at 3, 8, 15, and 20 °C for up to 128 days on soils from western and south-eastern Norway. Soils with the highest pH showed the highest mineralization. The mineralization increased with increasing temperature and time, but start-up N reduced mineralization. The mineralization cannot be estimated from standard soil chemical parameters because the different C/N ratio indicates organic material of different origin and quality. The increase in NO3-N started very quickly and ranged from 17 to 182% and 12 to 64% after 8 days at 3 °C and 20 °C, respectively. There was no correlation between total N in the soil and the amount of mineralized N. On average, the mineralization increased by 5–7% for a change of 1 °C in the interval from 8 to 15 °C in the soil. The chemical extraction method using heated KCl correlated well with the mineralization data. On average, the chemical method estimated 30 kg N ha−1, which corresponded to 0.48% of total N. Recommendations for N fertilization based on total N in the soil overestimate the contribution of plant-available N in most cases.",
journal = "Agronomy, Agronomy",
title = "Nitrogen Mineralization of Apple Orchard Soils in Regions of Western and South-Eastern Norway",
number = "10",
pages = "2570",
volume = "13",
doi = "10.3390/agronomy13102570"
}

Krogstad, T., Zivanovic, V., Simic, A., Aksic, M. F., Licina, V.,& Meland, M.. (2023). Nitrogen Mineralization of Apple Orchard Soils in Regions of Western and South-Eastern Norway. in Agronomy, 13(10), 2570.
https://doi.org/10.3390/agronomy13102570

Krogstad T, Zivanovic V, Simic A, Aksic MF, Licina V, Meland M. Nitrogen Mineralization of Apple Orchard Soils in Regions of Western and South-Eastern Norway. in Agronomy. 2023;13(10):2570.
doi:10.3390/agronomy13102570 .

Krogstad, Tore, Zivanovic, Valentina, Simic, Aleksandar, Aksic, Milica Fotiric, Licina, Vlado, Meland, Mekjell, "Nitrogen Mineralization of Apple Orchard Soils in Regions of Western and South-Eastern Norway" in Agronomy, 13, no. 10 (2023):2570,
https://doi.org/10.3390/agronomy13102570 . .

Maas, F., Krogstad, T., Akšic, M. F.,& Meland, M.. (2022). Survey of nutrient levels in apple trees and soil in four fruit growing regions in Norway. 
NIBIO..
https://hdl.handle.net/21.15107/rcub_agrospace_6489

Maas F, Krogstad T, Akšic MF, Meland M. Survey of nutrient levels in apple trees and soil in four fruit growing regions in Norway. 2022;.
https://hdl.handle.net/21.15107/rcub_agrospace_6489 .

Maas, Frank, Krogstad, Tore, Akšic, Milica Fotiric, Meland, Mekjell, "Survey of nutrient levels in apple trees and soil in four fruit growing regions in Norway" (2022),
https://hdl.handle.net/21.15107/rcub_agrospace_6489 .

TY  - JOUR
AU  - Simić, Aleksandar
AU  - Živanović, Iva
AU  - Rajić, Nevenka
AU  - Milutinović, Ivan
AU  - Rakić, Vesna
AU  - Krogstad, Tore
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3975
AB  - The zeolitic tuff (Zlatokop deposit, Vranjska Banja, Serbia) containing 70% of clinoptilolite was used as a manure additive in this work. Clinoptilolite as a binding agent can be “carrier” of ammonia ion. In the present study, cattle manure enriched with clinoptilolite was applied as an organomineral fertilizer. The experiment was carried out on a natural pasture in period 2012-14 in Western Serbia. It included five different treatments: a) control without fertilizer; b) pure fermented cattle manure (30 t ha-1); c) organomineral fertilizer (30 t ha-1 cattle manure +10 wt.% zeolite); d) pure zeolite (3 t ha-1); and e) nitrogen application by mineral fertilizer, 50 kg ha-1 N in the first year and 30 kg ha-1 N in the second year. The fertilizers were applied in autumn, except mineral fertilizer which was applied in spring. The dry matter (DM) contents and the botanical compositions of forage were estimated for two years. Treatments with manure, organomineral fertilizer and mineral N application gave higher DM yield compared to control plots, and changes have been reflected on pasture composition, which affected forage quality.
AB  - U radu je korišćen prirodni zeolitski tuf (sa kopa Zlatokop, Vranjska Banja, koji sadrži 70% zeolita klinoptilolita) kao dodatak svežem stajnjaku. Klinoptilolit se zbog velikog afiniteta za vezivanje amonijaka može koristiti kao njegov “nosač”. Po dodavanju zeolitskog tufa svežem stajnjaku i posle fermentacije (zrenja) ovog kompleksa dobijeno je organomineralno đubrivo koje je tokom ispitivanja (2012-2014) primenjivano na pašnjaku u zapadnoj Srbiji. Primenjeno je 5 tretmana: kontrola bez đubrenja, zeolit u količini 3 t ha-1, zreo stajnjak u kolicini od 30 t ha-1 i zreo stajnjak izmešan sa zeolitom u kolicini 30 t ha- !+10% zeolit, kao i mineralno azotno đubrivo KAN u količini od 50 kg N ha-1 prve godine i 30 kg N ha-1 druge godine. Đubrenje je obavljeno u jesen, a prihrana mineralnim đubrivom u proleće. Praćen je prinos i botanički sastav naredne dve vegatacione sezone. Prinos krme je rastao u odnosu na kontrolu pri đubrenju stajnjakom, stajnjakom sa zeolitom i KAN-om; a promene su se odrazile i na botanički sastav pašnjaka, što je uticalo na kvalitet dobijene krme.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - Application of organomineral fertilizers enriched by clinoptilolite in voluminous forage production
T1  - Primena organomineralnih đubriva sa dodatim klinoptilolitom u proizvodnji kabaste stočne hrane
EP  - 131
IS  - 1-2
SP  - 125
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3975
ER  - 

@article{
author = "Simić, Aleksandar and Živanović, Iva and Rajić, Nevenka and Milutinović, Ivan and Rakić, Vesna and Krogstad, Tore",
year = "2015",
abstract = "The zeolitic tuff (Zlatokop deposit, Vranjska Banja, Serbia) containing 70% of clinoptilolite was used as a manure additive in this work. Clinoptilolite as a binding agent can be “carrier” of ammonia ion. In the present study, cattle manure enriched with clinoptilolite was applied as an organomineral fertilizer. The experiment was carried out on a natural pasture in period 2012-14 in Western Serbia. It included five different treatments: a) control without fertilizer; b) pure fermented cattle manure (30 t ha-1); c) organomineral fertilizer (30 t ha-1 cattle manure +10 wt.% zeolite); d) pure zeolite (3 t ha-1); and e) nitrogen application by mineral fertilizer, 50 kg ha-1 N in the first year and 30 kg ha-1 N in the second year. The fertilizers were applied in autumn, except mineral fertilizer which was applied in spring. The dry matter (DM) contents and the botanical compositions of forage were estimated for two years. Treatments with manure, organomineral fertilizer and mineral N application gave higher DM yield compared to control plots, and changes have been reflected on pasture composition, which affected forage quality., U radu je korišćen prirodni zeolitski tuf (sa kopa Zlatokop, Vranjska Banja, koji sadrži 70% zeolita klinoptilolita) kao dodatak svežem stajnjaku. Klinoptilolit se zbog velikog afiniteta za vezivanje amonijaka može koristiti kao njegov “nosač”. Po dodavanju zeolitskog tufa svežem stajnjaku i posle fermentacije (zrenja) ovog kompleksa dobijeno je organomineralno đubrivo koje je tokom ispitivanja (2012-2014) primenjivano na pašnjaku u zapadnoj Srbiji. Primenjeno je 5 tretmana: kontrola bez đubrenja, zeolit u količini 3 t ha-1, zreo stajnjak u kolicini od 30 t ha-1 i zreo stajnjak izmešan sa zeolitom u kolicini 30 t ha- !+10% zeolit, kao i mineralno azotno đubrivo KAN u količini od 50 kg N ha-1 prve godine i 30 kg N ha-1 druge godine. Đubrenje je obavljeno u jesen, a prihrana mineralnim đubrivom u proleće. Praćen je prinos i botanički sastav naredne dve vegatacione sezone. Prinos krme je rastao u odnosu na kontrolu pri đubrenju stajnjakom, stajnjakom sa zeolitom i KAN-om; a promene su se odrazile i na botanički sastav pašnjaka, što je uticalo na kvalitet dobijene krme.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "Application of organomineral fertilizers enriched by clinoptilolite in voluminous forage production, Primena organomineralnih đubriva sa dodatim klinoptilolitom u proizvodnji kabaste stočne hrane",
pages = "131-125",
number = "1-2",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3975"
}

Simić, A., Živanović, I., Rajić, N., Milutinović, I., Rakić, V.,& Krogstad, T.. (2015). Application of organomineral fertilizers enriched by clinoptilolite in voluminous forage production. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 21(1-2), 125-131.
https://hdl.handle.net/21.15107/rcub_agrospace_3975

Simić A, Živanović I, Rajić N, Milutinović I, Rakić V, Krogstad T. Application of organomineral fertilizers enriched by clinoptilolite in voluminous forage production. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2015;21(1-2):125-131.
https://hdl.handle.net/21.15107/rcub_agrospace_3975 .

Simić, Aleksandar, Živanović, Iva, Rajić, Nevenka, Milutinović, Ivan, Rakić, Vesna, Krogstad, Tore, "Application of organomineral fertilizers enriched by clinoptilolite in voluminous forage production" in Zbornik naučnih radova Instituta PKB Agroekonomik, 21, no. 1-2 (2015):125-131,
https://hdl.handle.net/21.15107/rcub_agrospace_3975 .

TY  - JOUR
AU  - Milovanović, Jelena
AU  - Eich-Greatorex, Susanne
AU  - Krogstad, Tore
AU  - Rakić, Vesna
AU  - Rajić, Nevenka
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3742
AB  - Clinoptilolite-rich tuff (NZ) from the Zlatokop deposit (Vranjska Banja, Serbia) was studied as a nitrogen carrier for grass production. The mechanism of binding ammonium cations present in aqueous solutions by NZ was examined, as well as the possibility of adsorption of ammonia released in fresh cattle manure during its fermentation. The NH4+ binding from solutions proceeded via an ion-exchange process that followed pseudo-second-order kinetics. Adsorption isotherms studied at 298-318 K followed the Freundlich isotherm equation. The NZ readily adsorbs ammonia liberated from manure and the addition of 10 wt. % of NZ to manure can preserve up to 90 % of ammonia. The potential benefit of this effect was examined in greenhouse pot experiments with Italian ryegrass (Lolium multiflorum, var. Macho) using three different types of soil (silty, clayey and sandy). The zeta potential measurements showed that the stability of their colloidal dispersions differed mutually and that the addition of NZ affected the stability and nitrogen cycling differently. All results indicated that NZ could be applied in grass production.
PB  - Srpsko hemijsko društvo, Beograd
T2  - JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
T1  - The use in grass production of clinoptilolite as an ammonia adsorbent and a nitrogen carrier
EP  - 1214
IS  - 9
SP  - 1203
VL  - 80
DO  - 10.2298/JSC150317042M
ER  - 

@article{
author = "Milovanović, Jelena and Eich-Greatorex, Susanne and Krogstad, Tore and Rakić, Vesna and Rajić, Nevenka",
year = "2015",
abstract = "Clinoptilolite-rich tuff (NZ) from the Zlatokop deposit (Vranjska Banja, Serbia) was studied as a nitrogen carrier for grass production. The mechanism of binding ammonium cations present in aqueous solutions by NZ was examined, as well as the possibility of adsorption of ammonia released in fresh cattle manure during its fermentation. The NH4+ binding from solutions proceeded via an ion-exchange process that followed pseudo-second-order kinetics. Adsorption isotherms studied at 298-318 K followed the Freundlich isotherm equation. The NZ readily adsorbs ammonia liberated from manure and the addition of 10 wt. % of NZ to manure can preserve up to 90 % of ammonia. The potential benefit of this effect was examined in greenhouse pot experiments with Italian ryegrass (Lolium multiflorum, var. Macho) using three different types of soil (silty, clayey and sandy). The zeta potential measurements showed that the stability of their colloidal dispersions differed mutually and that the addition of NZ affected the stability and nitrogen cycling differently. All results indicated that NZ could be applied in grass production.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "JOURNAL OF THE SERBIAN CHEMICAL SOCIETY",
title = "The use in grass production of clinoptilolite as an ammonia adsorbent and a nitrogen carrier",
pages = "1214-1203",
number = "9",
volume = "80",
doi = "10.2298/JSC150317042M"
}

Milovanović, J., Eich-Greatorex, S., Krogstad, T., Rakić, V.,& Rajić, N.. (2015). The use in grass production of clinoptilolite as an ammonia adsorbent and a nitrogen carrier. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
Srpsko hemijsko društvo, Beograd., 80(9), 1203-1214.
https://doi.org/10.2298/JSC150317042M

Milovanović J, Eich-Greatorex S, Krogstad T, Rakić V, Rajić N. The use in grass production of clinoptilolite as an ammonia adsorbent and a nitrogen carrier. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY. 2015;80(9):1203-1214.
doi:10.2298/JSC150317042M .

Milovanović, Jelena, Eich-Greatorex, Susanne, Krogstad, Tore, Rakić, Vesna, Rajić, Nevenka, "The use in grass production of clinoptilolite as an ammonia adsorbent and a nitrogen carrier" in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY, 80, no. 9 (2015):1203-1214,
https://doi.org/10.2298/JSC150317042M . .