Consequences of the Long-Term Fertilization System Use on Physical and Microbiological Soil Status in the Western Polissia of Ukraine

The response of soil microbial diversity to long-term fertilization is still not well understood in the context different types. purpose this research was reveal impact systems on parameters and life activity main taxonomic physiological groups microorganisms responsible for nitrogen, carbon, phosphorus transformation. Reported results were obtained course a 55-year-long experiment sod-podzolic grain-flax-potato crop rotation. Soil sampling conducted within 0–20 cm depth five sites: without fertilizer (C); organic system, manure (O1FS); mineral NPK (MFS); organic-mineral + (O1MFS); siderate (O2MFS). Long-term use various has led changes properties. Bacteria dominated community all examined areas. supported bacteria development variants, except MFS, negatively affected micromycetes content. A strong relationship between change indicators number from found pH KCl micromycetes. O1FS option had most beneficial effect nitrifiers denitrifiers. O1MFS system favorable non-symbiotic anaerobic nitrogen-fixing, cellulose-degrading phosphate-mobilizing microorganisms. In turn, least conditions cases continuous fertilizers.