TY - JOUR AU - Bulyhin, S. AU - Tonkha, O. PY - 2018/04/15 Y2 - 2024/03/28 TI - Biological evaluation of the rationality of soil usage in agriculture JF - Agricultural Science and Practice JA - Agric. sci. pract. VL - 5 IS - 1 SE - Articles DO - 10.15407/agrisp5.01.023 UR - https://agrisp.com/index.php/agrisp/article/view/126 SP - 23-29 AB - 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. ER -