The efficiency of symbioyic nitrogen fixation in agrocenosws of beans
Abstract
The results of studies on the influence factors of pre-inoculated of bean seed of production and new strains of rhizobia, their activity on the formation of symbiotic system.The accumulation of a large mass of nodules naturally leads to an increase in active symbiotic potential. Observations showed that the inoculation of bean seeds promotes more active formation of active nitrogen-fixing nodules.The highest of nitrogen-fixing activity marked strains of Rhizobium phaseoli, F-16, nitrohenazna activity was at 84,23 nMol ethylene per plant per hour and strain Rhizobium phaseoli, 700, respectively 70,26 nMol ethylene per plant per hour. As a result of the studies identified strains of nodule bacteria Rhizobium phaseoli, F-16 and Rhizobium phaseoli, 700, which are complementary to modern varieties of beans and efficiency of symbiotic nitrogen fixation prevail of reference strains.Thus, the study of symbiotic activity of bean plants, showed that pre-plant biostimulation of legume-ryzobial complex leads to earlier appearance of nodules, their number and weight. These indicators are stored throughout the growing season and are manifested not only in the number and weight of nodules, but and activity in nitrohenazna system.Based on promising strains can be developed manufacturing technology of biological products for pre-inoculated of bean seed.References
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