Effect of nitrogen and Nitragin application on soybean yield and protein content

Abstract

A three-year experiment was conducted to study the effect of different doses of nitrogen fertilizer applied under previous crop and seed inoculation with a microbial preparation NS Nitragin on soybean yield and protein content in grain. The experiment was set up in four replications at Rimski Šančevi experiment field of Institute of Field and Vegetable Crops, Novi Sad. Presowing seed inoculation contributed to a statistically significant increase in yield and protein content in all three research years, while the highest nitrogen dose had a positive impact on soybean yield only in 2007 and on protein content in 2006 and 2007.

U trogodišnjem ogledu proučavan je uticaj različitih doza azotnih đubriva primenjenih pod predusev i inokulacije semena mikrobiološkim preparatom NS-Nitragin na prinos i sadržaj proteina u zrnu soje. Ogled je postavljen u četiri ponavljanja, na parceli Instituta za ratarstvo i povrtarstvo, Novi Sad na Rimskim Šančevima. Inokulacija semena pre setve doprinela je statistički veoma značajnom povećanju prinosa i sadržaja proteina u sve tri godine istraživanja, dok su najveće doze azota imale pozitivan uticaj na prinos soje samo 2007. odnosno na sadržaj proteina 2006. i 2007.