No abstract

The test data of field experiments on different microbial preparations use at cultivation of peach and sweet cherry transplants in fruit nursery wereshown. Thenumberofthemicrobialpreparationsdeveloped at The Southern Experimental Station of Institute of Agricultural Microbiology UAAS containing active stains of the microorganisms capable to associative nitrogen fixation, phosphorus mobilization, and possessing growth promoting and bioprotektive action were investigated. It was established, that all tested microbial preparations had a positive influence on growth and development of peach and sweet-cherries seedlings at organic nitrogen (manure) background. The greatest transplants output was received in variants with Azotobacterin and Phosphoenterin. Application of Azotobacterin, Phosphoenterin and a complex of microbial preparations at cultivation of a peach on a background of manure had raised the quality and an output of 1-year transplants on 2-10 % due to amplification of plant growth, better grafted maintenance, stimulation of growth and development of lateral shoots and roots of transplants. On a background of mineral nitrogen the positive action of microbial preparations was not observed.

No abstract

It was shown that phosphorous mobilizing bacterium E. nimipressuralis 32-3 can take roots in the rhizosphere of grapes due to the artificially acquired resistance to antibiotics. The ability to progress into the root area of plants explains the positive effect of bacteria on the productivity of grapes.