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Comprehensive measures are being implemented in our republic to develop cotton and textile clusters, modernize and re-equip cotton ginning enterprises, increase the profitability of production and primary processing of raw materials, and at the same time increase the competitiveness of products. One of the important issues is to provide cleaning equipment with cotton uninterruptedly and taking into account the heat and humidity regime, that is, the creation of an effective technology for preparing cotton for the cleaning process. Based on the experience of Jaxon, large-scale research and development work is being carried out to improve the technique and technology of primary processing of cotton. In this area, among other things, it is important to create an effective technology for cleaning cotton from impurities, optimizing the moisture-thermal parameters when cleaning cotton, creating resource-saving efficient designs of suppliers, optimizing modes and performance indicators. In this article, a formula is obtained for determining the friction force created by seeding the fiber on the surface of the pile, installed obliquely on the surface of the cleaning drum from small impurities. Based on the analysis of the connection graphs, built on the basis of a numerical solution, the recommended values of the parameters of the pile drum were determined.

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This article presents the results of research of studying the effect of mineral fertilizers on soil moisture and the growth and development of forest seedlings when creating forest crops on the western slope of the Western Tien-Shan. It was established by experience that forest seedlings react differently to the action of mineral fertilizers. In pine, an increase in the fertilizer dose contributes to an increase in the growth of seedlings in height by 1.2 times. English oak, on the contrary, reacts weakly to the effects of fertilizers. Korolkov’s hawthorn reacts intensively to the effects of fertilizers. At the same time, an increased dose of fertilizers contributes to an increase in the annual growth of plants by 3.2 times. The Sievers apple tree differed from other species with intensive growth in all variants of the experiment on the western slopes during the growing season. But in this breed, an increase in the dose of fertilizers caused an increase in annual growth up to 1.5 times compared with the control variant. Mineral fertilizers do not contribute to significant moisture retention in the upper soil layer during the summer vegetation season, but in the lower root-inhabited layers of fertilizer, it has a positive effect in increasing soil moisture above the wilting moisture, which is 8%, and is often observed in the upper horizons.