Fertility of soddy-podzolic soil and the productivity of rotation crops at the application of different fertilizer rates
The application of calculated fertilizer rates has significantly increased the productivity of rotation crops. At the planning of negative potassium balance in the arable horizon of soil, the content of its mobile forms increased by 44 mg/kg. At the application of the minimum and calculated rates of phosphoric fertilizers, the content of mobile phosphorus changes insignificantly.