TY  - JOUR
AU  - Gajić, Boško
AU  - Živković, Miodrag
PY  - 2006
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1159
AB  - The present study includes the results of comparative investigations of aggregate composition and water stability of structural aggregates in humus horizons of calcareous rendzina, Estern Serbia, under native forest and pasture vegetations and the same rendzina utilized long-term as arable field. The results show that aggregate composition and water stability of structural aggregates in the cultivated calcareous rendzina are significantly impaired due to a long-term anthropogenization. In the cultivated rendzina, the content of agronomically most valuable aggregates (0.25-10 mm) is decreased, while the percentage of cloddy aggregates (>10 mm) is increased about 1.5 to 2 times in comparison with the forest and pasture. The forest and the permanent pasture calcareous rendzina had a greater aggregate water stability than the cultivated rendzina in humus horizon. The lowest water stability is found in aggregates >3 mm. The largest mean weight diameters (MWD) of dry aggregates were found in forest calcareous rendzina (4.48 mm, vs. 4.23 mm in pasture and 3.98 mm in arable field). MWD of water stable agregates was higher in pasture (1.32 mm) and forest (1.12 mm) than in cultivated calcareous rendzina (0.54 mm). The structure coefficient of cultivated calcareous rendzina was lower than in forest and meadow. .
AB  - U ovom radu je izvršeno uporedno istraživanje agregatnog sastava i vodootpornosti strukturnih agregata u humusnom horizontu karbonatnih, skeletno praškasto-glinovito ilovastih do glinovito ilovastih rendzina na laporcu i laporovitim krečnjacima, pod prirodnom šumskom i pašnjačkom vegetacijom, i istih rendzina koje se dugotrajno (stolećima) koriste kao njivska zemljišta u istočnoj Srbiji. Rezultati istraživanja pokazuju da su agregatni sastav i vodootpornost strukturnih agregata u humusnom, tj. oraničnom horizontu njivskih rendzina znatno pogoršani usled dugotrajne antropogenizacije. Međutim, i pored toga, prema klasifikaciji koju navode ŠEIN et al. (2001), njihov agregatni sastav je još uvek dobar. U njivskim rendzinama sadržaj agronomski najpovoljnijih agregata (prečnika 0.25-10 mm) je znatno smanjen, dok je udeo (prosek 20.55%) grudvastih agregata (prečnika >10 mm) povećan za 1.5 do 2 puta u poređenju sa šumom (13.49%) i pašnjakom (11.84%). U humusnom horizontu istraženih karbonatnih rendzina pod šumom i pašnjakom utvrđena je znatno veća vodootpornost strukturnih agregata nego u njivskoj rendzini. Najmanju vodootpornost pokazali su strukturni agregati prečnika >3 mm. Najveći prosečni prečnik strukturnih agregata (MWD) u suvom stanju utvrđen je u zemljištu pod šumom (4.48 mm), 4.23 mm pod pašnjakom i 3.98 mm u njivskoj rendzini. MWD vodootpornih strukturnih agregata veći je za oko 2 puta u zemljištu pod pašnjakom (1.32 mm) i pod šumom (1.12 mm) nego u njivskoj (0.54 mm) karbonatnoj rendzini. Koeficijent strukturnosti u njivskoj redndzini znatno je manji nego pod šumom i pašnjakom. .
PB  - Unija bioloških naučnih društava Jugoslavije, Beograd
T2  - Zemljište i biljka
T1  - Aggregate composition and stability of structural aggregates in humus horizons of forest, pasture and arable field rendzinas
T1  - Agregatni sastav i stabilnost strukturnih agregata u humusnom horizontu šumskih, pašnjačkih i njivskih rendzina
EP  - 130
IS  - 2
SP  - 119
VL  - 55
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_1159
ER  - 

@article{
author = "Gajić, Boško and Živković, Miodrag",
year = "2006",
abstract = "The present study includes the results of comparative investigations of aggregate composition and water stability of structural aggregates in humus horizons of calcareous rendzina, Estern Serbia, under native forest and pasture vegetations and the same rendzina utilized long-term as arable field. The results show that aggregate composition and water stability of structural aggregates in the cultivated calcareous rendzina are significantly impaired due to a long-term anthropogenization. In the cultivated rendzina, the content of agronomically most valuable aggregates (0.25-10 mm) is decreased, while the percentage of cloddy aggregates (>10 mm) is increased about 1.5 to 2 times in comparison with the forest and pasture. The forest and the permanent pasture calcareous rendzina had a greater aggregate water stability than the cultivated rendzina in humus horizon. The lowest water stability is found in aggregates >3 mm. The largest mean weight diameters (MWD) of dry aggregates were found in forest calcareous rendzina (4.48 mm, vs. 4.23 mm in pasture and 3.98 mm in arable field). MWD of water stable agregates was higher in pasture (1.32 mm) and forest (1.12 mm) than in cultivated calcareous rendzina (0.54 mm). The structure coefficient of cultivated calcareous rendzina was lower than in forest and meadow. ., U ovom radu je izvršeno uporedno istraživanje agregatnog sastava i vodootpornosti strukturnih agregata u humusnom horizontu karbonatnih, skeletno praškasto-glinovito ilovastih do glinovito ilovastih rendzina na laporcu i laporovitim krečnjacima, pod prirodnom šumskom i pašnjačkom vegetacijom, i istih rendzina koje se dugotrajno (stolećima) koriste kao njivska zemljišta u istočnoj Srbiji. Rezultati istraživanja pokazuju da su agregatni sastav i vodootpornost strukturnih agregata u humusnom, tj. oraničnom horizontu njivskih rendzina znatno pogoršani usled dugotrajne antropogenizacije. Međutim, i pored toga, prema klasifikaciji koju navode ŠEIN et al. (2001), njihov agregatni sastav je još uvek dobar. U njivskim rendzinama sadržaj agronomski najpovoljnijih agregata (prečnika 0.25-10 mm) je znatno smanjen, dok je udeo (prosek 20.55%) grudvastih agregata (prečnika >10 mm) povećan za 1.5 do 2 puta u poređenju sa šumom (13.49%) i pašnjakom (11.84%). U humusnom horizontu istraženih karbonatnih rendzina pod šumom i pašnjakom utvrđena je znatno veća vodootpornost strukturnih agregata nego u njivskoj rendzini. Najmanju vodootpornost pokazali su strukturni agregati prečnika >3 mm. Najveći prosečni prečnik strukturnih agregata (MWD) u suvom stanju utvrđen je u zemljištu pod šumom (4.48 mm), 4.23 mm pod pašnjakom i 3.98 mm u njivskoj rendzini. MWD vodootpornih strukturnih agregata veći je za oko 2 puta u zemljištu pod pašnjakom (1.32 mm) i pod šumom (1.12 mm) nego u njivskoj (0.54 mm) karbonatnoj rendzini. Koeficijent strukturnosti u njivskoj redndzini znatno je manji nego pod šumom i pašnjakom. .",
publisher = "Unija bioloških naučnih društava Jugoslavije, Beograd",
journal = "Zemljište i biljka",
title = "Aggregate composition and stability of structural aggregates in humus horizons of forest, pasture and arable field rendzinas, Agregatni sastav i stabilnost strukturnih agregata u humusnom horizontu šumskih, pašnjačkih i njivskih rendzina",
pages = "130-119",
number = "2",
volume = "55",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_1159"
}

Gajić, B.,& Živković, M.. (2006). Aggregate composition and stability of structural aggregates in humus horizons of forest, pasture and arable field rendzinas. in Zemljište i biljka
Unija bioloških naučnih društava Jugoslavije, Beograd., 55(2), 119-130.
https://hdl.handle.net/21.15107/rcub_agrospace_1159

Gajić B, Živković M. Aggregate composition and stability of structural aggregates in humus horizons of forest, pasture and arable field rendzinas. in Zemljište i biljka. 2006;55(2):119-130.
https://hdl.handle.net/21.15107/rcub_agrospace_1159 .

Gajić, Boško, Živković, Miodrag, "Aggregate composition and stability of structural aggregates in humus horizons of forest, pasture and arable field rendzinas" in Zemljište i biljka, 55, no. 2 (2006):119-130,
https://hdl.handle.net/21.15107/rcub_agrospace_1159 .

TY  - JOUR
AU  - Gajić, Boško
AU  - Živković, Miodrag
AU  - Dugalić, Goran
PY  - 2006
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1158
AB  - In order to estimate the aggregate composition of carbonate loamy chernozems on the loess of South Banat, utilized as cultivated and pasture, fractionation was performed of individual categories of structural aggregates according to their size and also the determination of structure coefficient, mean weight diameter and geometric mean diameter of the dry structural aggregates. Laboratory analyses involved soil samples of the humus, i.e. arable (0-20-30 cm) and subarable horizons (20-40 and 40-60 cm) from 24 profiles of cultivated land and the samples of surface (0-20-30 cm) and subsurface layers (20-40 and 40-60 cm) of the humus horizons of 4 pasture profiles. The results of the investigations showed that beside favorable, mainly crumby-beady structure there appeared also significant differences in aggregate composition, both between various profiles, in dependence on the utilization mode of the soil, and between various depth zones of the humus horizon. The content of agronomical most valuable aggregates fraction (0.25-10 mm) in all depth zones of the humus horizon of the investigated profiles is >60%, which is, according to the classification by ŠEIN et al. (2001), a characteristic of good-structured soil. According to the values of structure coefficient and the mentioned classification, the cultivated soil profiles (1.5-2.42) show good, and those from pasture (1.15-1.70) satisfactory structure. In cultivated soil profiles, mean weight diameter and geometric mean diameter of the dry aggregates is significantly higher than in those from the pasture, and when they are larger, the structure of the soil is better and vice versa. .
AB  - U cilju ocene agregatnog sastava karbonatnih ilovastih černozema na lesu Južnog Banata, pri njivskom i pašnjačkom načinu korišćenja, izvršeno je frakcionisanje pojedinih kategorija strukturnih agregata prema njihovoj veličini i određivanje koeficijenta strukturnosti, srednjeg masenog i srednjeg geometrijskog dijametra strukturnih agregata. Laboratorijskim analizama obuhvaćeni su zemljišni uzorci humusnog, odnosno oraničnog (0-20-30 cm) i podoraničnog horizonta (20-40 i 40-60 cm) iz 24 njivska profila i uzorci površinske (0-20-30 cm) i podpovršinskih proba (20-40 i 40-60 cm) humusnog horizonta iz 4 pašnjačka profila. Rezultati istraživanja pokazali su da pored povoljne, pretežno mrvičasto-graškaste strukture postoje i znatne razlike u agregatnom sastavu kako među raznim profilima, u zavisnosti od načina korišćenja zemljišta, tako i u raznim dubinskim zonama humusnog horizonta. Sadržaj agronomski najpovoljnijih agregata (0.5-10 mm) u svim dubinskim zonama humusnog horizonta istraženih profila je > 60%, što je, prema klasifikaciji Šein-a et al. (2001), karakteristika zemljišta dobre strukture. Prema vrednostima koeficijenta strukturnosti i navedenoj klasifikaciji njivski profili (1.5-2.42) pokazuju dobru, a pašnjački (1.15-1.70) zadovoljavajuću strukturnost. U njivskim profilima prosečni maseni i geometrijski prečnik agregata znatno je veći nego u pašnjačkim, a kada su njihove vrednosti veće struktura zemljišta je bolja i obratno. .
PB  - Unija bioloških naučnih društava Jugoslavije, Beograd
T2  - Zemljište i biljka
T1  - Aggregate composition of carbonate chernozem from South Banat
T1  - Agregatni sastav karbonatnih černozema Južnog Banata
EP  - 140
IS  - 2
SP  - 131
VL  - 55
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_1158
ER  - 

@article{
author = "Gajić, Boško and Živković, Miodrag and Dugalić, Goran",
year = "2006",
abstract = "In order to estimate the aggregate composition of carbonate loamy chernozems on the loess of South Banat, utilized as cultivated and pasture, fractionation was performed of individual categories of structural aggregates according to their size and also the determination of structure coefficient, mean weight diameter and geometric mean diameter of the dry structural aggregates. Laboratory analyses involved soil samples of the humus, i.e. arable (0-20-30 cm) and subarable horizons (20-40 and 40-60 cm) from 24 profiles of cultivated land and the samples of surface (0-20-30 cm) and subsurface layers (20-40 and 40-60 cm) of the humus horizons of 4 pasture profiles. The results of the investigations showed that beside favorable, mainly crumby-beady structure there appeared also significant differences in aggregate composition, both between various profiles, in dependence on the utilization mode of the soil, and between various depth zones of the humus horizon. The content of agronomical most valuable aggregates fraction (0.25-10 mm) in all depth zones of the humus horizon of the investigated profiles is >60%, which is, according to the classification by ŠEIN et al. (2001), a characteristic of good-structured soil. According to the values of structure coefficient and the mentioned classification, the cultivated soil profiles (1.5-2.42) show good, and those from pasture (1.15-1.70) satisfactory structure. In cultivated soil profiles, mean weight diameter and geometric mean diameter of the dry aggregates is significantly higher than in those from the pasture, and when they are larger, the structure of the soil is better and vice versa. ., U cilju ocene agregatnog sastava karbonatnih ilovastih černozema na lesu Južnog Banata, pri njivskom i pašnjačkom načinu korišćenja, izvršeno je frakcionisanje pojedinih kategorija strukturnih agregata prema njihovoj veličini i određivanje koeficijenta strukturnosti, srednjeg masenog i srednjeg geometrijskog dijametra strukturnih agregata. Laboratorijskim analizama obuhvaćeni su zemljišni uzorci humusnog, odnosno oraničnog (0-20-30 cm) i podoraničnog horizonta (20-40 i 40-60 cm) iz 24 njivska profila i uzorci površinske (0-20-30 cm) i podpovršinskih proba (20-40 i 40-60 cm) humusnog horizonta iz 4 pašnjačka profila. Rezultati istraživanja pokazali su da pored povoljne, pretežno mrvičasto-graškaste strukture postoje i znatne razlike u agregatnom sastavu kako među raznim profilima, u zavisnosti od načina korišćenja zemljišta, tako i u raznim dubinskim zonama humusnog horizonta. Sadržaj agronomski najpovoljnijih agregata (0.5-10 mm) u svim dubinskim zonama humusnog horizonta istraženih profila je > 60%, što je, prema klasifikaciji Šein-a et al. (2001), karakteristika zemljišta dobre strukture. Prema vrednostima koeficijenta strukturnosti i navedenoj klasifikaciji njivski profili (1.5-2.42) pokazuju dobru, a pašnjački (1.15-1.70) zadovoljavajuću strukturnost. U njivskim profilima prosečni maseni i geometrijski prečnik agregata znatno je veći nego u pašnjačkim, a kada su njihove vrednosti veće struktura zemljišta je bolja i obratno. .",
publisher = "Unija bioloških naučnih društava Jugoslavije, Beograd",
journal = "Zemljište i biljka",
title = "Aggregate composition of carbonate chernozem from South Banat, Agregatni sastav karbonatnih černozema Južnog Banata",
pages = "140-131",
number = "2",
volume = "55",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_1158"
}

Gajić, B., Živković, M.,& Dugalić, G.. (2006). Aggregate composition of carbonate chernozem from South Banat. in Zemljište i biljka
Unija bioloških naučnih društava Jugoslavije, Beograd., 55(2), 131-140.
https://hdl.handle.net/21.15107/rcub_agrospace_1158

Gajić B, Živković M, Dugalić G. Aggregate composition of carbonate chernozem from South Banat. in Zemljište i biljka. 2006;55(2):131-140.
https://hdl.handle.net/21.15107/rcub_agrospace_1158 .

Gajić, Boško, Živković, Miodrag, Dugalić, Goran, "Aggregate composition of carbonate chernozem from South Banat" in Zemljište i biljka, 55, no. 2 (2006):131-140,
https://hdl.handle.net/21.15107/rcub_agrospace_1158 .

TY  - JOUR
AU  - Gajić, Boško
AU  - Živković, Miodrag
PY  - 2006
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1145
AB  - The present study includes the results of comparative investigations of aggregate composition and water stability of structural aggregates in humus horizons of non-calcareous rendzina under native forest and pasture vegetations and the same rendzina utilized long-term as arable field. The results show that aggregate composition and water stability of structural aggregates in the cultivated non-calcareous rendzina are significantly impaired due to a long-term anthropogenization. In the cultivated rendzinas the content of agronomically most valuable aggregates (0.25-10 mm) significantly decreased, while the percentage of cloddy aggregates (>10 mm) was increased about 1.5 to 3.5 times in comparison with the rendzina under pasture and forest vegetations. The structure coefficient of cultivated soils was lower (2.61) than in forest (4.63) and pasture (10.47) rendzinas. The cultivated non-calcareous rendzina had lower (59.12%) aggregate water stability than rendzina under pasture (82.66%) and forest (91.92%). Mean weight diameters of water stable agregates was higher in forest (1.44 mm) and pasture (1.20 mm) than in cultivated (0.65 mm) rendzina.
AB  - U ovom radu je dat prikaz uporednih istraživanja agregatnog sastava i vodootpornosti strukturnih agregata u humusnom horizontu beskarbonatnih, skeletnih, praškasto-glinovito ilovastih rendzina na laporcu i laporovitim krečnjacima, pod prirodnom šumskom i pašnjačkom vegetacijom, i istih rendzina koje se dugotrajno (vekovima) koriste kao njivska zemljišta u istočnoj Srbiji. Dugogodišnja antropogenizacije dovela je do znatnog pogoršanja agregatnog sastav i vodootpornosti strukturnih agregata. Međutim, i pored toga, njivske rendzine se, prema klasifikaciji koju navode Shein et al. (2001), još uvek karakterišu dobrim agregatnim sastavom. U njivskim rendzinama sadržaj agronomski najpovoljnijih agregata (prečnika 0.25-10 mm) je znatno smanjen, dok je udeo (prošek 26.15%) grudvastih agregata (prečnika >10 mm) znatno povećan u poređenju sa šumom (17.00%) i pašnjakom (6.92%). U humusnom horizontu istraženih beskarbonatnih rendzina pod šumom i pašnjakom utvrđena je znatno veća vodootpornost strukturnih agregata nego u njivskoj rendzini. Najmanju vodootpornost pokazali su strukturni agregati prečnika >3 mm. Koeficijent strukturnosti u njivskoj redndzini znatno je manji nego pod šumom i pašnjakom. Najveći prosečni prečnik strukturnih agregata (MWD) u suvom stanju utvrđen je u rendzinama pod šumom (5.24 mm). 4.41 mm pod pašnjakom i 4.20 mm u njivskoj rendzini. MWD vodootpornih strukturnih agregata veći je za oko 2 puta u zemljištu pod pašnjakom (l .20 mm) i pod šumom (1.44 mm) nego u njivskoj (0.65 mm) beskarbonatnoj rendzini.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd
T2  - Journal of Agricultural Sciences (Belgrade)
T1  - Aggregate composition and stability of structural aggregates of non-calcareous rendzinas in Eastern Serbia
T1  - Agregatni sastav i stabilnost strukturnih agregata beskarbonatnih rendzina istočne Srbije
EP  - 150
IS  - 2
SP  - 141
VL  - 51
DO  - 10.2298/JAS0602141G
ER  - 

@article{
author = "Gajić, Boško and Živković, Miodrag",
year = "2006",
abstract = "The present study includes the results of comparative investigations of aggregate composition and water stability of structural aggregates in humus horizons of non-calcareous rendzina under native forest and pasture vegetations and the same rendzina utilized long-term as arable field. The results show that aggregate composition and water stability of structural aggregates in the cultivated non-calcareous rendzina are significantly impaired due to a long-term anthropogenization. In the cultivated rendzinas the content of agronomically most valuable aggregates (0.25-10 mm) significantly decreased, while the percentage of cloddy aggregates (>10 mm) was increased about 1.5 to 3.5 times in comparison with the rendzina under pasture and forest vegetations. The structure coefficient of cultivated soils was lower (2.61) than in forest (4.63) and pasture (10.47) rendzinas. The cultivated non-calcareous rendzina had lower (59.12%) aggregate water stability than rendzina under pasture (82.66%) and forest (91.92%). Mean weight diameters of water stable agregates was higher in forest (1.44 mm) and pasture (1.20 mm) than in cultivated (0.65 mm) rendzina., U ovom radu je dat prikaz uporednih istraživanja agregatnog sastava i vodootpornosti strukturnih agregata u humusnom horizontu beskarbonatnih, skeletnih, praškasto-glinovito ilovastih rendzina na laporcu i laporovitim krečnjacima, pod prirodnom šumskom i pašnjačkom vegetacijom, i istih rendzina koje se dugotrajno (vekovima) koriste kao njivska zemljišta u istočnoj Srbiji. Dugogodišnja antropogenizacije dovela je do znatnog pogoršanja agregatnog sastav i vodootpornosti strukturnih agregata. Međutim, i pored toga, njivske rendzine se, prema klasifikaciji koju navode Shein et al. (2001), još uvek karakterišu dobrim agregatnim sastavom. U njivskim rendzinama sadržaj agronomski najpovoljnijih agregata (prečnika 0.25-10 mm) je znatno smanjen, dok je udeo (prošek 26.15%) grudvastih agregata (prečnika >10 mm) znatno povećan u poređenju sa šumom (17.00%) i pašnjakom (6.92%). U humusnom horizontu istraženih beskarbonatnih rendzina pod šumom i pašnjakom utvrđena je znatno veća vodootpornost strukturnih agregata nego u njivskoj rendzini. Najmanju vodootpornost pokazali su strukturni agregati prečnika >3 mm. Koeficijent strukturnosti u njivskoj redndzini znatno je manji nego pod šumom i pašnjakom. Najveći prosečni prečnik strukturnih agregata (MWD) u suvom stanju utvrđen je u rendzinama pod šumom (5.24 mm). 4.41 mm pod pašnjakom i 4.20 mm u njivskoj rendzini. MWD vodootpornih strukturnih agregata veći je za oko 2 puta u zemljištu pod pašnjakom (l .20 mm) i pod šumom (1.44 mm) nego u njivskoj (0.65 mm) beskarbonatnoj rendzini.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd",
journal = "Journal of Agricultural Sciences (Belgrade)",
title = "Aggregate composition and stability of structural aggregates of non-calcareous rendzinas in Eastern Serbia, Agregatni sastav i stabilnost strukturnih agregata beskarbonatnih rendzina istočne Srbije",
pages = "150-141",
number = "2",
volume = "51",
doi = "10.2298/JAS0602141G"
}

Gajić, B.,& Živković, M.. (2006). Aggregate composition and stability of structural aggregates of non-calcareous rendzinas in Eastern Serbia. in Journal of Agricultural Sciences (Belgrade)
Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd., 51(2), 141-150.
https://doi.org/10.2298/JAS0602141G

Gajić B, Živković M. Aggregate composition and stability of structural aggregates of non-calcareous rendzinas in Eastern Serbia. in Journal of Agricultural Sciences (Belgrade). 2006;51(2):141-150.
doi:10.2298/JAS0602141G .

Gajić, Boško, Živković, Miodrag, "Aggregate composition and stability of structural aggregates of non-calcareous rendzinas in Eastern Serbia" in Journal of Agricultural Sciences (Belgrade), 51, no. 2 (2006):141-150,
https://doi.org/10.2298/JAS0602141G . .

TY  - JOUR
AU  - Gajić, Boško
AU  - Živković, Miodrag
PY  - 2004
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/762
AB  - The paper presents the results of the analyses of plasticity and stickiness of the following surface (0-20 cm) and subsurface (20-40 and 40-60 cm) samples of humus horizon of three types of smonitza from Aleksinac valley: 8 profiles of non-carbonate (typical) arable field soils (17 samples), 5 profiles of non-carbonate forest soils (11 samples) and 3 profiles of carbonate soils (8 samples) in order to determine as precisely as possible its productive quality and optimal conditions for utilization of agricultural machines and tools. On the basis of performed laboratory analyses it has been found that all investigated smonitzas, independently of the mode of their utilization, possess very unfavourable physicotextural characteristics because they belong to the group of very plastic soils, with plasticity index higher than 20, mostly even than 30, and with very marked stickiness, higher than 1.5 kPa. For some of the profiles, some other physical and chemical characteristics have also been determined, among which are physical and colloidal clay contents, humus and CaCO3 contents.
AB  - U radu su prikazani rezultati određivanja plastičnosti i lepljivosti površinskih (0-20 cm) i potpovršinskih (20-40 i 40-60 cm) proba humusnog horizonta tri varijeteta smonica Aleksinačke kotline, i to: 8 profila beskarbonatnih (tipičnih) njivskih, 5 profila beskarbonatnih šumskih i 3 profila karbonatnih, da bi se što pravilnije procenio njen proizvodni kvalitet i odredili optimalni uslovi pri korišćenju poljoprivrednih mašina i oruđa. Rezultati istraživanja pokazali su visoke vrednosti svih pokazatelja plastičnosti i to u svim ispitanim uzorcima smonica, ali i znatne razlike između raznih varijeteta, kao i manje značajne razlike između površinskih (ornični horizont) i potpovršinskih proba. Prema veličini plastičnosti sve ispitane smonice spadaju u grupu jako plastičnih zemljišta, s indeksom plastičnosti većim od 20, mahom i od 30, što je veoma nepoželjna karakteristika ovih zemljišta u pogledu njihove obrade i gajenja biljaka na njima. Slična je situacija i sa lepljivošc'u istraženih smonica. Svi ispitani uzorci pokazuju visoku maksimalnu lepljivost (1.5-2.8 kPa), vlažnost početka lepljenja (23.54-36.8 % mas.), kao i vlažnost pri maksimalnom prilepljivanju (40.73-64.69 % mas.). Na osnovu utvrđenih rezultata može se reci da se uticaj načina korišćenja, sadržaja humusa i mehaničkog sastava ispitanih smonica bitno odražava na njihovu plastičnost i lepljivost. Određene su i prikazane i neke druge fizičke i hemijske karakteristike izvesnog broja profila, među kojima sadržaj fizičke i koloidne gline, humusa i CaCO3.
PB  - Unija bioloških naučnih društava Jugoslavije, Beograd
T2  - Zemljište i biljka
T1  - Plasticity and stickiness of smonitzas in Aleksinac valley
T1  - Plastičnost i lepljivost smonica Aleksinačke kotline
EP  - 36
IS  - 1
SP  - 29
VL  - 53
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_762
ER  - 

@article{
author = "Gajić, Boško and Živković, Miodrag",
year = "2004",
abstract = "The paper presents the results of the analyses of plasticity and stickiness of the following surface (0-20 cm) and subsurface (20-40 and 40-60 cm) samples of humus horizon of three types of smonitza from Aleksinac valley: 8 profiles of non-carbonate (typical) arable field soils (17 samples), 5 profiles of non-carbonate forest soils (11 samples) and 3 profiles of carbonate soils (8 samples) in order to determine as precisely as possible its productive quality and optimal conditions for utilization of agricultural machines and tools. On the basis of performed laboratory analyses it has been found that all investigated smonitzas, independently of the mode of their utilization, possess very unfavourable physicotextural characteristics because they belong to the group of very plastic soils, with plasticity index higher than 20, mostly even than 30, and with very marked stickiness, higher than 1.5 kPa. For some of the profiles, some other physical and chemical characteristics have also been determined, among which are physical and colloidal clay contents, humus and CaCO3 contents., U radu su prikazani rezultati određivanja plastičnosti i lepljivosti površinskih (0-20 cm) i potpovršinskih (20-40 i 40-60 cm) proba humusnog horizonta tri varijeteta smonica Aleksinačke kotline, i to: 8 profila beskarbonatnih (tipičnih) njivskih, 5 profila beskarbonatnih šumskih i 3 profila karbonatnih, da bi se što pravilnije procenio njen proizvodni kvalitet i odredili optimalni uslovi pri korišćenju poljoprivrednih mašina i oruđa. Rezultati istraživanja pokazali su visoke vrednosti svih pokazatelja plastičnosti i to u svim ispitanim uzorcima smonica, ali i znatne razlike između raznih varijeteta, kao i manje značajne razlike između površinskih (ornični horizont) i potpovršinskih proba. Prema veličini plastičnosti sve ispitane smonice spadaju u grupu jako plastičnih zemljišta, s indeksom plastičnosti većim od 20, mahom i od 30, što je veoma nepoželjna karakteristika ovih zemljišta u pogledu njihove obrade i gajenja biljaka na njima. Slična je situacija i sa lepljivošc'u istraženih smonica. Svi ispitani uzorci pokazuju visoku maksimalnu lepljivost (1.5-2.8 kPa), vlažnost početka lepljenja (23.54-36.8 % mas.), kao i vlažnost pri maksimalnom prilepljivanju (40.73-64.69 % mas.). Na osnovu utvrđenih rezultata može se reci da se uticaj načina korišćenja, sadržaja humusa i mehaničkog sastava ispitanih smonica bitno odražava na njihovu plastičnost i lepljivost. Određene su i prikazane i neke druge fizičke i hemijske karakteristike izvesnog broja profila, među kojima sadržaj fizičke i koloidne gline, humusa i CaCO3.",
publisher = "Unija bioloških naučnih društava Jugoslavije, Beograd",
journal = "Zemljište i biljka",
title = "Plasticity and stickiness of smonitzas in Aleksinac valley, Plastičnost i lepljivost smonica Aleksinačke kotline",
pages = "36-29",
number = "1",
volume = "53",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_762"
}

Gajić, B.,& Živković, M.. (2004). Plasticity and stickiness of smonitzas in Aleksinac valley. in Zemljište i biljka
Unija bioloških naučnih društava Jugoslavije, Beograd., 53(1), 29-36.
https://hdl.handle.net/21.15107/rcub_agrospace_762

Gajić B, Živković M. Plasticity and stickiness of smonitzas in Aleksinac valley. in Zemljište i biljka. 2004;53(1):29-36.
https://hdl.handle.net/21.15107/rcub_agrospace_762 .

Gajić, Boško, Živković, Miodrag, "Plasticity and stickiness of smonitzas in Aleksinac valley" in Zemljište i biljka, 53, no. 1 (2004):29-36,
https://hdl.handle.net/21.15107/rcub_agrospace_762 .