Abstract
It was found that long-term cultivation of corn with the fertilizer application rate of N70P72K72 kg/ha of crop rotation and embedding as a by-product of organic fertilizers does not lead to a reduction in yields of the crop. In addition, during prolonged systematic burying of 21,7 t/ha of reside of corn stalks into the soil, there is a favorable for humus and nutrient status. In five-course grain-row crop rotations due to the reduction of organic matter in revenues of 2.5 times, there is a decrease of humus content.
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