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2021, № 90

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Sources of nitrogen during the formation of soybeans and seeds

In recent years, various research institutions have carried out numerous experiments on the use of biological nitrogen in crop production and the determination of the role of mineral nitrogen during the formation of the generative organs of plants. Considering the great importance of soybeans in the food industry as the highest protein crop, as well as its importance as a fodder crop, soybeans require special attention. Thanks to such high merits. soybeans should become more widespread every year. Important in theoretical and practical terms is the relationship between nitrogenase and nitro-reductase in the cells of nitrogen-fixing microorganisms and in nodule bacteria. The contribution of symbiotic nitrogen fixation depends on the timely switching of the nutrition of legumes from a nitrate source to a symbiotrophic type of nitrogen nutrition. During the flowering period of soybeans, there is often a decrease in nitrate absorption and transport. During this period, a high symbiotic fixation of molecular nitrogen is noted, which is very important during the formation of beans and seeds as a source of nitrogen. Satisfaction of the needs of beans and seeds in nitrogen is partly carried out through the re-utilization of nitrogenous substances from vegetative organs, which depends on many factors (climatic conditions, variety, state of plants).
Keywords: Soybeans, biological nitrogen, sources of nitrogen supplied to seeds, yield, seed quality.
DOI: 10.21515/1999-1703-90-59-63

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Authors:

1. Knyazev Boris Muzakirovich, DSc in Agriculture, Professor of the Department Technology of production and processing of agricultural products, Federal State Budgetary Educational Institution of Higher Education "Kabardino-Balkarian State Agrarian University".
2. Knyazeva Diana Borisovna, postgraduate student, Federal State Budgetary Educational Institution of Higher Education "Kabardino-Balkarian State Agrarian University".