TRANSFORMATION OF NITROGEN-CONTAINING COMPOUNDS OF LEACHEDCHERNOZEM UNDER CONDITIONS OF MINIMIZING THE MAIN TREATMENT
The widespread introduction of reduced soil treatments in the conditions of the Siberian region is accompanied by a change in the nitrogen regime and requires the study of mechanisms and techniques for regulating the intensity of biological processes in the soil. The study of these issues in the conditions of the Krasnoyarsk region is relevant, since the “nitrogen content” is one of the factors in the “minimum” and controlling biological processes. Tillage radically changes the course and direction of soil-biological processes, which cannot but affect the intensity and direction of transformation of nitrogen compounds in the soil. It had been established that mechanical mixing of the soil with a plow is accompanied by an increase in biochemical activity and in the rate of transformation of easily mineralized organic matter. Surface loosening of the soil causes a shift in the time interval of soil nitrogen mineralization to a later one. The activity of the nitrogen cycle enzymes reflects the various stages of the transformation of nitrogenous compounds. Urease activity of the soil is more sensitive to changes in the method of tillage compared to protease.