Adaptation of soils of the Ciscaucasia to processing systems

Abstract

The intense technological and natural anthropogenic load on the soils of the Stavropol Territory, leading to a violation of its ecological and production functions and a decrease in fertility, requires a differentiated approach when introducing a particular soil cultivation system for a specific type or subtype of soil. It is proposed to develop a generalized indicator D for assessing the implementation of various systems of basic tillage for different types of soils based on criterion factors: humus content (%), soil density (d, g/cm3), soil resistivity (T, kg/cm2) and soil ped content >10 mm (C, %). As a result of calculations of the indicator Dfact for a specific soil and comparing its values with the range of Dtest it was found that for ordinary chernozem and solonetzic chernozem with Dfact equal to 0.889 and 0.932, moldboard plowing is acceptable for certain crops in the crop rotation, dark chestnut and chestnut soils with Dfact equal to 0.828 and 0.778, respectively, it is preferable to cultivate without moldboard with a combination of different methods and depth of soil cultivation, on light chestnut soils (Dfact=0.749), minimization with shallow mulching is recommended.