SOIL. VARIATY. YIELD

It is known that in order to create stable conditions for the intensification of agriculture, it is necessary to increase the culture of agriculture, improve the technological processes of cotton cultivation, forms of labor organization. D.N. Pryanishnikov (1952) wrote that the plant and its harvest are the basis of all problems of agronomic and biological sciences and agricultural practitioners. Along with this, he emphasized the possibility of knowing the laws of the relationship between the plant organism and the environment, because this opens up unlimited possibilities of human influence on the growth and development of plants in order to obtain high and sustainable yields. In order to obtain a high yield of proper quality, it is necessary that all plant growth factors are presented in certain harmonic combinations that best meet the needs of plants in the appropriate phases of their growth and development. It is known that not only every plant, but also every variety, according to N.I. Vavilov’s apt remark, makes its own requirements for soil fertility, therefore, the requirements of different plants and varieties to increase soil fertility will be different. Therefore, it will be necessary to know the requirements of plants and varieties for soil conditions. As you can see, the main criterion for soil fertility is a plant. The fertility of the soil is created for the crop and evaluated by it. Consequently, the plant is not only a soil-forming factor, but also a measure of fertility. D.N. Pryanishnikov (1952) emphasized the importance of knowing the laws of the relationship between the plant organism and the environment, because this opens up unlimited possibilities for human influence on the growth and development of plants in order to obtain high and stable yields