Investigation of the Influence of Various Methods of Cotton Harvesting on its Pollution and Other Qualitative Indicators

This article provides information on moisture and impurities in cotton that is picked by hand and by different cotton-picking machines, as well as the number of knots in the hand and machine-made cotton fiber, in addition to the length of the staple of the fiber.An analysis of the results of manual and machine research on cotton is presented.The moisture content, the contamination, the number of knots, and the length of the staple depend on a number of factors, and the results obtained by the methods of their determination are illustrated.The quality of cotton is determined not only by the types of machines, but also by the climatic conditions during the harvest, cotton opening, field preparation, and other factors, as well as the contamination by the State Standard UzDst 592-2008 on the methods of determining the cotton contamination.The results of a practical study of comparing moisture and contamination of cotton harvested by hand and by cotton picking machine ''Case-2020'' in Genefon breeder type 1 in the Dustlik district of Jizzakh region of Uzbekistan and contrasting type cotton harvested by John Deere by