FORMING POTENTIAL SYMBIOTIC VEGETABLE BEAN (PHASEOLUS VULGARIS L.) DEPENDING ON THE APPLICATION IN BIOLOGICS AGROCENOSES RIGHT-BANK FOREST-STEPPE UKRAINE
The dynamics of the formation and functioning of the symbiotic apparatus was studied. The influence of new strains of tuberous bacteria on the activity of the process of formation of a symbiotic apparatus in agrocenoses of vegetable bean (Phaseolus vulgaris L.) was investigated. It is proved that the use of biopreparations provides an increase in interphase periods. The influence of the complex application of inoculation with bacterial preparations Azotofit-p, Biomag, Biocomplex-BTU-r on the basic indices of the symbiotic productivity of vegetable bean crops, in particular the number and weight of active tubers, the active symbiotic potential, and the yield of the bean shovel of the early maturity group of the Zironka variety were studied. It was established that the use of the bacterial preparation Biocomplex-BTU-p contributes to the increase in the number and mass of bulb formations on the root system of the Zironka variety. The largest was the variant with the use of bioproject Biocomplex-BTU-p - 0.62 g / plant, which is 0.39 g / plant more than in the case without pre-treatment. The application of the bacterial drug Biocomplex-BTU-r contributed to the receipt of 18.4 t / ha, or 9.4 t / ha of crop increment. A correlation analysis was conducted between yield and studied parameters. The use of Azotofit- p and Biomag was ineffective. It was noted that the use of biotreparents Azotofit-p and Biomag contributed to the increase of the formation of the general symbiotic potential, so the given figure in these variants was 1.5 and 1.3 thousand kg. days / ha.