EVALUATION OF AGROCHEMICAL PARAMETERS OF SOILS IN KOSTANAY REGION

Land degradation is one of the key global problems of the modern world. This leads to environmental degradation, reduced ecosystem productivity, threats to food security and a decrease in the quality of life of the population. This article presents the results of a study of agrochemical indicators in the Kostanay region. The purpose of this study is to analyze the current agrochemical state of agricultural lands, to assess the dynamics of agrochemical indicators and soil fertility in the Kostanay region. The purpose of this study is to analyze the current agrochemical condition of agricultural lands, to assess the dynamics of agrochemical indicators and soil fertility in the Kostanay region. The place of agrochemical research in individual agricultural lands of the Agricultural Experimental Station «Zarechnoye» LLP in Kostanay region and in farms of the Fedorovsky district of Kostanay region. The article describes the materials and methods of research and the results of field experiments to determine the content of soil organic matter, nitrate nitrogen, mobile phosphorus and potassium. The results of the study showed 2-4% of humus content in the arable horizon in Kostanay region, 4-6% in Fedorovsky district. In individual fields, the coefficients of variation of phosphate content in the arable layer range from 15.1 to 58.3%, which indicates the average level of variability of this agrochemical indicator. The content of mobile potassium is from 17.0 to 33.7%, which suggests a low degree of variation.