The effects of crop rotation and nitrogen on grain yield and protein content of winter wheat

Abstract

The purpose of the study was to determine the influence of crop rotation, N fertilization and year on wheat grain yield and grain protein content (GPC) at the Experimental Field of the Institute of Field and Vegetable Crops in Novi Sad. Wheat yield varied across crop rotations, investigated years and applied N. Significantly higher yield for the investigated period was found at WSMf whereas WMuf was significantly lower compared to other treatments. GPC differed significantly between copping years (9,73-13.66%) and crop rotations (11.72-13.20%). Grain yield and GPC were inversely but not significantly correlated (r = - 0,08). Although WWf had higher GPC (13.20%) it can not be recommended to farmers due to permanent risk of production failure and somewhat lower yield.