Means of enhancing the role of biological nitrogen in phytotechny

Abstract

According to several sources, biological nitrogen plays an important role in the growth, development and productivity of agricultural plants. It is also known that with increasing doses of mineral fertilizers their effectiveness decreases, in agricultural production increases the accumulation of nitrates, intensifies their migration into the environment (water, soil, air, etc.). One of the alternative sources of supplemental plant in nutrition with nitrogen is atmospheric nitrogen fixed microbially. The intensification of the use of molecular nitrogen can be performed in several ways such as: increasing the areas of the crops of leguminous plants, bringing them in the structure of crops up to 20-25%. For this it is necessary to ensure the optimal conditions for the symbiotic fixation process (optimization of aeration and water regime, introduction of the required amount of phosphorus fertilizers and necessary micro-fertilizers.