EVALUATION OF METHODS FOR MECHANICAL CULTIVATION ACCORDING TO THE INDICATORS OF CORN YIELD

The impact of mechanical cultivation methods on soil structure parameters yield of corn have been studied. Changing the system cultivation should be reasonably informed decision, taking into account the diversity of soil, climate conditions diversity, national agricultural production, modern technology and must provide address a number of issues: the problem of production; phytocoenotic problem; environmental problem; social problem. In the context of resource first for the leftbank forest-steppe Ukraine scientifically proved the feasibility of a differentiated system of cultivation in the rotation, a part of which, depending on the structure of sown areas, it is recommended to implement periodic application of plowing on the background of pre-emptive use of deep and chisel plowing and surface and shallow cultivation combined disk and instruments. But the system of differentiated tillage and zero tillage system need its scientific coverage agroecological context. Therefore, research agroecological methods mentioned mechanical cultivation as environmental factors together complex interactions agro-ecosystem is an actual scientific and practical problems. Established that the density of standing corn at the end of the growing season will depend on how the mechanical cultivation. The smallest stand density characteristic zero tillage, and the highest - for minimum tillage. Mechanical cultivation between the depth and density of standing corn installed linear relationship. The highest density observed in minimum tillage, and increase or decrease the depth of soil leads to a decrease in this indicator. Mass starts per unit of surface soil tillage is defined way. The largest mass starts Chiseling observed in the soil to a depth of 40 cm. The lowest level of this indicator is set for plowing to a depth of 25-27 cm. Zero and minimum cultivation leads to transient performance starts mass per unit area. The variability of stand density that occurs during the growing season, did not significantly affect the weight starts corn. The action methods of cultivation to harvest is due to the adjustment of weight per unit area starts. The biggest corn crop cultivation contributes chisel plowing a depth of 40 cm. Somewhat smaller harvest can be obtained by cultivation of soil or soil with zero. The lowest maize harvest can be obtained by tilling to a depth of 25-27 cm