The efficiency of use of fertilizers on spring wheat in the Rostov region

The article presents the results of three-year studies on the impact of different levels of mineral nutrition on the productivity of spring wheat. The experiment was conducted on the background of three norms of sowing of seed. Used grade Melody don. The highest yield of grain was provided at the seeding rate of 5 million PCs./ha. the yield Increase accounted for 28,7-49,8 per cent in comparison with the control. Full rate fertilizer (N80Р80К80) gave the highest yield, provided an increase of 26,4 and 47,0%. The highest payback of 1 kg of fertilizers by the increase of the crop is obtained on the average background of mineral nutrition, regardless of the seeding rates. The best indicator was marked at a rate of 5 million units / ha, amounting to 5,33 kg.