The influence of the methods of the main treatment of the soil on agrophysical indicators of lixivious chernozem of Krasnoyarsk forest-steppe

The research objective was the determination of the level of minimizing lixivious chernozem tillage in Krasnoyarsk foreststeppe which would suit the most optimum physical properties. The research problems were: 1) to determine optimum parameters of agrophysical indicators of the fertility ofleached chernozem for grain crops (soil density, arable layer structure, soil hardness) when carrying out dump main and zero processing of the soil; 2) to study the influence of the methods of the main tillage on structural condition of arable layer of the soil. The research was conducted on grain tillage crop rotation. The scheme of the experiment included four options: dump plowing, flat loosening, surface and zero soil treatment. It was established that the refusal of carrying out dump plowing had increased the stability of soil structure. Structural condition of leached chernozem of Krasnoyarsk forest-steppe according to Williams’ gradation was characterized as excellent in the option with soil zero processing and as good when carrying out dump plowing on 20-22 cm...