QAND LAVLAGINI TUPROQDAN AZOTLI OZIQA MODDALARNI O‘ZLASHTIRISHIGA AZOTLI O‘G‘IT SHAKL VA ME’YORLARINING TA’SIRI

This article studies the effect of nitrogen fertilization forms and rates on the absorption of nitrogenous nutrients from the soil by repeatedly planted sugar beet. It is known that sugar beet is a very demanding crop for nutrients. Therefore, to obtain high yields, it is best to choose the right form of mineral fertilizers and apply them in the right amount and at the right time. Among mineral fertilizers, nitrogen fertilizers are the most important, which have a strong effect on plant growth and development, yield and quality. However, their effect varies depending on the form of nitrogen fertilizers (for example, sodium nitrate, ammonium nitrate, ammonium sulfate, urea). Because all forms of nitrogen fertilizers contain different amounts of nutrients. Therefore, when a certain form of nitrogen fertilizer and its rate are acceptable to the plant, the growth and development of the plant is much faster. This, in turn, makes the plant more efficient in absorbing nutrients from the soil. As a result, its productivity increases. The results of the experiments showed that ammonium nitrate and urea, among the forms of nitrogen fertilizers, had a strong effect on the absorption of nitrogen and other nutrients in the soil.