EFFICIENCY OF GREEN CROP MANURE FERTILIZERS FOR WINTER RYE GROWING
Green manure crops used in the experiment had a positive effect on the conditions for feeding winter rye. In plants of winter rye grown on the green manure crop soil in the phase of outlet into the tube, the content of nitrogen, phosphorus and potassium was higher in comparison with the occupied one. The use of an in-plant vetch increased the content of nitrogen only in plants. The green manure crop soil ensured a significant increase in yield. The cultivation of winter rye in the green manure crop soil compared with the occupied green manure crop ensured the increase in the grain yield from 0.57-0.53 t / ha against NPK to 0.52-0.75 t / ha on an unfertilized background. The positive effect of the sowing seed was manifested only when growing winter rye on a busy soil. Additions of the grain yield amounted to 0.17-0.33 t /ha. With the use of green manure crop fertilizers in the grain of winter rye, the content of raw protein increased and the natural mass and mass of 1000 grains did not change. The coefficients of nutrients use by winter rye from the sowing wake were significantly higher in comparison with the vetch-oats green crop manure and amounted to 81% nitrogen, 58% phosphorus and 75% potassium.