Influence of the systematic application of inorganic fertilizers on the ley farming efficiency

In the experience laid down in Station K Department of agricultural chemistry and mineral nutrition of plants Federal Rostov Agricultural Research Center in Rassvet in Rostov region for seven years studying the systematic mineral fertilization with different doses under each crop rotation. The studies found a positive effect of the studied doses on the yield of crops and productivity of crop rotation. The maximum productivity is obtained when making a complete fertilizer for crops and is 37.2 cwt grain units/ha, which is 34.8% higher than the control. The maximum payback of fertilizers obtained by making an average of 1 ha of crop rotation area of 21 kg of active substance (nitrogen).