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Biotechnology in Animal Husbandry
2020, vol. 36, br. 1, str. 101-113
jezik rada: engleski
vrsta rada: izvorni naučni članak
objavljeno: 26/07/2020
doi: 10.2298/BAH2001101S
Creative Commons License 4.0
Prinos, kvalitet i indeks ishrane azotom livade tipa Agrostietum capillaris pod uticajem đubrenja
aUniverzitet u Beogradu, Poljoprivredni fakultet
bInstitut za stočarstvo, Beograd-Zemun
cInstitut za zaštitu bilja i životnu sredinu, Beograd
dInstitut za krmno bilje, Kruševac

e-adresa: violeta_randjelovic@yahoo.com

Projekat

Research was financed by the Ministry of Education, Science and Technological Development of Republic of Serbia

Sažetak

Unošenje N, P i K inputa u poluprirodnim livadama je vaţno za postizanje maksimalnih prinosa na stoĉarskim farmama. Cilj ove studije bio je procena uticaja razliĉitih nivoa N, P i K (N0P0K0, N50P50K50, N100P50K50, N100P100K100, N150P100K100 and N200P150K150 kg ha-1 yr-1 ) na prinos, kvalitet i indeks ishrane azotom (NNI) u livadskoj zajednici Agrostietum capillaris (poluprirodna livada) u zapadnoj Srbiji. Studija je sprovedena tokom perioda 2005-2008. Vrednosti ispitivanih parametara, izuzev usvajanja azota po jedinici mase, bile su najviše u 2004/2005 zbog povoljnih klimatskih uslova. Nivoi azota su znaĉajno povećali sve ispitivane parametre u poreĊenju sa kontrolnim tretmanom, osim usvajanja azota po jedinici mase. Đubrenje sa N200P150K150 obezbedilo je najveći prinos zelene krme (25.12 t ha-1 ), prinos suve materije (8.12 t ha-1 ), prinos sirovih proteina (876.3 kg ha-1 ), usvajanje azota (140,2 kg ha-1 ) i indeks ishrane azotom(70,2%), kao i najmanji (0,0022 kg N kg PSM-1 ). Upotreba mineralnih Ċubriva povećala je prinos zelene krme, prinos suve materije i prinos sirovih proteina, povećavanjem Ċubriva od najmanje do najveće koliĉine je povećalo prinos sveţe i suve mase, kao i prinos proteina. Na osnovu rezultata studije, praćenje indeksa ishrane azotom bi bilo neophodna mera u cilju porasta produktivnosti i ekonomske efikasnosti.

Ključne reči

Agrostietum capillaris; đubrenje; azotni indikatori; kvalitet; prinos

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