Kovalenko T. The optimization functioning symbiotic system Rhizobium - Trifolium polifunkcioning complex microorganisms.

Research object - symbiotic interaction of competitive and highly active Rhisobium leguminosarum bv. trifolii pratense and the effect of poly-functional complex of microorganism on the formation and functioning of a symbiotic system. Research aim - identification of highly active and competitive Rhisobium leguminosarum bv. trifolii, making a preparation on its basis and activation of nitrogen-fixing symbiotic system functioning Rhisobium Trifolium, use of poly functional complex of microorganisms in the conditions of the Forest-Steppe Zone. Research methods - laboratory, vegetative and field, mathematic- statistical. Theoretical and practical results - a new strain of bulb bacteria of clover Rh. leguminosarym bv. trifolii - Trifolium pretense L. was recommended to be used in production, as well as preparation made on its basis, which ensures the formation of an active symbiotic system Rh. legimunosarum bv. trifolii. Novelty - the use of strains Rh. legimunosarum bv. trifolii in combination with strainphosphorus-mobilizing bacteria Enterobacter nimipressuralis and strain-antagonist of phyto-pathogenic fungi Paenibacillus polymyxa on the background of spontaneous inoculation, in the conditions of the Forrest-Steppe Zone increases its nodule and nitrogenase activity, chlorophyll content in phyto-mass, clover productivity and quality of raw materials received. Introduction sphere - the results of the experiments were introduced into production on a 5-ha-field and used in working out recommendations "Cultivation of leek clover with the use of microbial preparations".