Abstract. Today, organic fertilizers and composts play an important role in improving soil fertility and the quality of agricultural products. In recent years, as a result of the rapid use of land resources in the whole world, including Uzbekistan, there is a decrease in the amount of humus and nutrients in the soil, and there is a shortage of some elements in the soil. The main reason for this is that nutrients leave the soil every year through crops, and less return, that is, the balance of output and input is disturbed. The analysis of raw cotton production in developed countries in 2016-2017 shows that India, China, USA, Pakistan and Brazil are among the top five cotton producers.