The permeability and the density of the composition of ordinary chernozems depending on the methods of basic soil cultivation at cultivation of sunflower on sloping lands

The article deals with the water permeability and density of the addition of arable and subsurface soil layers at the time of sowing and harvesting of sunflower on the erosion-hazardous slopes of chernozems of ordinary Rostov region. To assess the impact of the density of the addition of soil on water infiltration capacity, was the regression analysis of the data, which showed a close approximation of the reliability of experienced and calculated data.