PHOSPHATE NUTRITION AND YIELD OF WINTER WHEAT UNDER THE INFLUENCE OF FERTILIZERS AND POLIMIKSOBAKTERYN

To study the features of phosphorus nutrition of winter wheat under the influence of different doses of mineral fertilizers and microbial preparation Polimiksobakteryn. Methods. The phosphatase activity in rhizosphere soil of winter wheat was determined photocolorimetrically by the method of Geller and Ginsburg, the phosphorus content in plants - as described by Denizhe in the modification of Bouvatier. Results. The phosphatase activity in the rhizosphere soil of winter wheat plants increases due to the application of a microbial preparation and mineral fertilizers in low doses. This increases both the absorption of phosphorus by plants and their yield. Conclusions. Growing winter wheat on the leached black soil with dose-relevant introduction of mineral fertilizers in doses, not exceeding N60P60K60, and the use of Polimiksobakteryn improve phosphorus nutrition of wheat plants and promote the increase in the yield of crops.