ECOLOGICAL ASPECTS OF FORMATION OF HIGHEFFICIENT LEGUME–RHIZOBIAL SYSTEMS OF GLYCІNE MAX–BRADYRHІZOBІUM JAPONІCUM

It was established, that alochtonic microbiota is virulent, competitive, suitable to different grades makrosymbiont, resistant to abiotical factors, in particular climate and soil conditions as comparing to the autochtonic (native) microbiota, that had a positive influence on indicators of productivity of system Glycіne max-Bradyrhіzobіum japonіcum M 8. It was established, that at optimum sowing terms (May, 5-15, application of the microbial preparations and use of ultra early and early cultivars of a soybean, it is possible to ensure formation of highly productive systems «Glycіne max–Bradyrhіzobіum japonіcum М8» in the conditions of a transitive zone of Forrest-Steppe–Polissya.