Soil fertility and yield of winter wheat and corn for grain in short crop rotations with different growing technologies

We studied influence of three cultivation technologies: traditional one, mulching with soil loosing, and minimal mulching on indicators of soil fertility and yield of field crops. We conducted our researches in fields of the National Center of Grain named after P.P. Lukyanenko on leached degraded low-humus black soil in three-field grain crop rotation. Fertilizer dozes in average for crop rotation were: under winter wheat - N120P25K13, under corn for grain - N65P24K10. We found out the largest reserves of productive moisture (145.0 mm) in 0-100 cm of the soil layer under winter wheat and corn for grain were at traditional technology, and the smallest (119.4 and 131.0 mm) -at minimal mulching. By the harvesting of these crops, soil moisture reserves have been reduced to 31-60 mm, especially at minimal technology. The soil density in layers of 0-20 cm and 20-40 cm under these crops was lower on traditional and decompression technologies - from 1...