Biological evaluation of the rationality of soil usage in agriculture

Abstract

Aim. To perform biological evaluation of 60-year-long application of different variants of fertilization in terms of the number of microorganisms, transforming the compounds of nitrogen and carbon. Methods. Microbiological methods – determining the number of microorganisms, transforming the organic compounds and nitrogen, statistical processing. Results. It was determined that the application of a crop rotation with legumes and the variant with complete mineral fertilization on meadow-chernozem carbonate soils formed a balanced composition of microbial cenosis and the most optimal conditions for humus accumulation and nitrogen transformation. Conclusions. The microbiological monitoring demonstrated that it is possible to achieve non-degradation development of meadow-chernozem soil at the quasi-stable level in case of applying the 10-fi eld crop rotation with legumes (clover) and complete mineral fertilization.