Yield ability of winter wheat depending on fertilizer system in different crop rotations of Forest-steppe

Abstract

The purpose. To justify productivity of winter wheat in different crop rotations depending on fertilizer system and saturation of crop rotation by tilling and cereal crops. Methods. Field, analytical, statistical. Results. Influence of crop rotations on productivity of winter wheat depending on fertilizer system, level of biologization of crop rotations and climatic features of years is investigated. Conclusions. On prosperous backgrounds of fertilizing in a link with vetch-oats productivity of winter wheat did not depend on availability of tilling and cereal crops. So on the background of N60P60K60 it made 4,97 — 5,10 t/hectare. Ploughing of crop residues in field crop rotation + N60P60K60 by its effect on productivity does not yield to organic-mineral background of fertilizing. Increase of temperature of air during vegetation of winter wheat reduces its productivity for 3,78 — 3,35 t/hectare. Optimum air temperatures at sufficient moistening secures increase of yield for 1,60 — 1,96 t/hectare.