The influence of nitrogen nutrition on the formation of the balance of nutrients in the agrocenosis of winter wheat

Аim. To study the influence of doses and methods applying nitrogen fertilizers on peculiarities use balance nutrients in agrocenosis winter wheat to form a paradigm an ecologically balanced fertilization system leached chernozem. Меthods. Short-term field analytical. Results. For first time, under conditions sufficient moisture Forest Steppe Ukraine, for cultivation chernozem, that forms soil ensures grain yield more than 6.5 t/ha has been substantiated. It was established with biological harvest, takes most from at ratio N:P:K = 2.7:1:1.9. found formation depended mainly did not depend their application. The potassium significantly removal straw potash fertilizers, phosphorus – fertilizers. Conclusions. Nitrogen removed by plants as part yield, by-products. In control without (4.77 t/ha) 94 kg/ha, 33, 25, (5.35 t / ha) 26, 10 57 respectively. stable anticipated leaving mineral dose N110Р60K60, where 60 kg ha ammonium sulfate applied frozen surface, 30 kg/ha nitrate surface or urea foliarly phase emergence into tube (IVth stage organogenesis) 20 milk-wax maturity (VIIIth background P60K60 deep plowing. Under such conditions, almost achieved deficiency 20–22 accumulation reserves amount 14–15 24 Obtaining based sustainability requires application N130Р50K40 condition remains field. case field, formed 62–64 63 balance, which is evidence unstable system.