THE INFLUENCE OF BIOPREPARATIONS ON THE INITIAL GROWTH PROCESSES OF SOYBEAN SEEDS
The creation of effective biologized pre-sowing methods of seed treatment of cultivated plants against the background of the conditions of modern absolute "chemical" farming has theoretical and practical significance in the construction of agrobiocoenosis on a biological platform. This work reflects the results of the laboratory studies to identify the effect of pre-sowing treatment on the morpho-physiological characteristics of seedlings at the initial stage of plant growth of promising soybean varieties of the northern ecotype (Zusha, Osmon, Lantsetnaya, Mezenka). The study of the growth processes in the laboratory at the initial stages of plant development makes it possible to neutralize the influence of barriers to the ecological heterogeneity of the environment. It was found that pre-sowing treatment of soybean seeds with an amino acid biostimulant intensifies not only their germination, but also the development of seedlings even against the background of the use of chemical fungicides: the process of water absorption by the seeds is catalyzed, the lag period is shortened, the ratio of biomass to seedling length increases by 78%, as a result, a more powerful root system is formed. Soybean seed inoculation leads to an increase in germination energy. The most pronounced stimulating effect was observed with the method of applying microbiological preparation in the form of spraying: the mass of seedlings was higher than the values of the control variants by an average of 24.0% in varieties Mezenka, Lantsetnaya and Zusha, and the length of seedlings was higher by 23.6% for all varieties. The stimulating effect of the tested drugs arises due to a positive effect on the physiological and biochemical processes of seedlings at the early stages of ontogenesis, which contributes to the realization of the high potential productivity of modern soybean varieties in the future.