No abstract

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

The effect of microbial preparations (MP) use, created on the basis of nitrogen-fixing and phosphorous mobilizing bacteria as well as complex of microbial preparations (CMP) on the effective soil fertility, mineral nutrition and efficiency of cherry plum and apricot seedlings growing was studied in the fruit nursery on the southern chernozems for three years. It was established that MP’s had a positive influence on the content of mineral elements in the soil and the leaves of fruit plants while promoting output of the standard planting material. Azotobacterine and CMP had the best effect on these indicators. Slight decrease of organic matter content in the soil under the cherry plum seedlings in MP variants was observed. Replenishment of the soil with organic matter is recommended for the effective use of MPs.