Patsko O. Physiological basis of using compositions of dyazotrophs with purpose to increasing the activity of symbiotic nitrogen-fixation

The thesis is devoted both to the investigation of physiological peculiarities and ecological aspects in highly efficient functioning symbiotic systems Medicago sativa (L.), Glycine max (L.) Merr., phototrophic and geterotrophic organisms in agrocenoses, as well as to the development of scientific bases in enhancing the activity of symbiotic fixation of atmospheric nitrogen, the intensity of photosynthesis and productivity at the account of the introduced strains of nodule bacteria and cyanobacteria. It was shown that binary inoculation with rhizobia and cyanobacteria may have a positive effect if the inoculation agents and their ratio are correctly chosen. The data obtained on the effect of complex bacterization on the development and productivity of plants under legume-rhizobial symbiotic conditions indicate the prospects of bacterial preparations based on cyanobacteria and rhizobia, including their genetically modified strains.