IMPACT OF FERTILIZER ELEMENTS ON WINTER BARLEY YIELD IN DIFFERENT FERTILIZATION SYSTEMS

Abstract

The paper presents the results of the research on the yield of winter barley cultivated on sod-podzolic loose-loamy soil. A significant yield increase of this crop was observed with application of nitrogen fertilizers in a dose of 90 kg/ha of active ingredient and 120 кg/ha of active ingredient in comparison with N₆₀. With changing doses of potassium fertilizers a significant difference in the yield of winter barley grain was established when phosphorous fertilizers were applied in a dose of 90 kg/ha of active ingredient compared to Р₃₀ and Р₆₀. The tendency to winter barley yield increase was observed when applying К120 to sod-podzolic sandy soil with high potassium content. The highest winter barley yield increase was provided by the N₆₀₊₃₀P₉₀K₁₂₀ fertilizer system.