Uticaj vremena primene NPK đubriva na sadržaj ulja u zrnu soje

Abstract

U trogodišnjem ogledu ispitivana je jesenja i prolećna primena NPK đubriva na prinos, sadržaj ulja u zrnu i prinos ulja po jedinici površine. Na osnovu rezultata vidljivo je da jesenja primena NPK đubriva uz predsetvenu primenu azotnog đubriva AN ima najveći efekat na povećanje prinosa zrna i povećanje prinosa ulja po jedinici površine. Prihrana soje azotnim đubrivom u toku vegetacije ima veoma mali efekat na povećanje prinosa zrna i prinosa ulja, dok prolećna primena NPK đubriva i AN-a u odnosu na jesenju primenu NPK đubriva povećava sadržaj ulja u zrnu soje, ali smanjuje prinos zrna i prinos ulja po jedinici površine.

In a three-year research, the autumn and winter application of NPK fertilizer on yield, grain oil content and oil yield per area unit was examined. Following the results, it is obvious that the autumn NPK fertilizer application with the presowing nitrogen fertilizer application AN, has the greatest effect on the grain yield increase and oil yield per unit area increase. soybean nitrogen fertilizing during vegetation has a very small effect on the grain and oil yield increase, while the spring NPK fertilizer and AN application, in regard to autumn NPK fertilizer application, increases the soybean oil content, but decreases the grain yield and oil yield per unit area.