Variability of Agrochemical Indicators of Arable Soils according to the Data of SASS “Kurganskaya”

The dynamics of agrochemical properties of arable soils in several regions of Russia are presented. Based on the monitoring of soil properties performed by SASS “Kurganskaya” for one of the zones of the Kurgan region (15 districts of the region), the course of changes in the properties of arable soils is shown. The process of their dynamics over time and under the influence of the intensity of economic activity of agricultural enterprises is traced. Almost everywhere, there is a close relationship between the content of mobile nutrients and even humus with the chemical index when using mineral fertilizers. With a decrease in the use of fertilizers in recent years, a slight decrease in the content of humus and mobile forms of nutrients has been observed in the Kurgan region.