CURRENT STATE OF SOIL FERTILITY OF AGRICULTURAL SOILS OF FEDOROVSKY DISTRICT, KOSTANAY REGION
The article deals with the issues of fertility of arable soils using elements of monitoring of agricultural lands and provides morphological descriptions of the studied soils of the Fedorovsky district of Kostanay region and their results of studying agrochemical characteristics, knowledge of which must be taken into account when using them in various landscape and environmental conditions. The studied soils of the district are characterized by the following morphological indicators: the thickness of the humus layer (A + B1) is 43-59 cm, boiling is observed at a depth of 28-36 cm, carbonate genera differ, where boiling from hydrochloric acid occurs from the soil surface. The upper humus horizon has a dark gray color, a lumpy, granular-lumpy structure with a thickness of 25-27 cm. Uneven coloration is observed in the underlying horizon B1, which is associated with bioclimatic conditions. It is established that in the territory of the Fedorovsky district of Kostanay region, the content of the main indicators varies from very low to medium content. The techniques necessary to increase soil fertility are leveling the diversity of the soil cover by bringing the content of nutrients to an optimal level in the soil, carrying out reclamation measures on saline soils and including fodder crops in the structure of crop rotation.