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Savremena poljoprivredna tehnika
2012, vol. 38, br. 3, str. 219-229
jezik rada: srpski
vrsta rada: izvorni naučni članak

Primena GPS i GIS tehnologije u postupku merenja mehaničkog otpora zemljišta
Univerzitet u Novom Sadu, Poljoprivredni fakultet

e-adresa: markok@polj.uns.ac.rs

Sažetak

Poljoprivredno zemljište ima trend smanjivanja plodnosti što je najčešći uzročnik stagnacije ili čak smanjenja poljske produktivnosti. Ta činjenica je povod velikom broju istraživanja u mnogim zemljama širom sveta. Mehanički otpor zemljišta može predstavljati meru degradiranosti nekog zemljišta jer isključivo zavisi od fizičko-biološkog stanja zemljišta. Veliki broj studija dokazao je da osobine zemljišta koje utiču na otpor zemljišta prostorno posmatrano, značajno variraju. U cilju merenja otpora zemljišta konstruisan je mehanički ram koji je predviđen za traktore i priključne mašine II i III kategorije. Ram je predviđen za merenje opterećenja u pravcu kretanja traktora. Istovremeno sa merenjem sile, određivana je geografska pozicija agregata pomoću GPS prijemnika. Rezultati merenja pokazuju da nema značajnog uticaja brzine kretanja na vrednosti otpora, dok su se prohodi razlikovali po srednjoj vrednosti otpora. Grafički prikaz u vidu GIS mape daje jasnu sliku promene otpora na parceli. Mehanički ram koji je namenjen merenju mehaničkog otpora pri obradi zemljišta u potpunosti je konstrukciono i funkcionalno zadovoljio potrebe testa. Kroz dalja istraživanja neophodno je dodatno usavršavanje opreme, metoda istraživanja i obrade podataka kao i boljeg grafičkog prikaza.

Ključne reči

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