It is known that in order to get a good yield in agriculture, it is important to keep the soil moisture at a normal level. Crop residue reduces evaporation, and the soil stays wet and the crop requires less water. Keeping the residues in fields after harvest reduces soil losses, protects the soil from erosion and adds soil organic matter to the soil. In its way, improving the soil content with crop residues will affect the development of crops. The aim of the research is to screen the effects of mulching on the development of cotton plants. Besides, researches were conducted in the fields with permanent beds and three types of leveling.