Summary: For the first time in a bright sierozems on cotton crops scientifically proved the effectiveness of differentiated depth of inter-row cultivation on the background of irrigation regimes 70-70-60% of the HB and put into production. Carrying loosening between rows at a depth of 23-25 cm before thinning plants, the provost of the international processing to a depth of 17-18 cm, and the next -14-16 cm had a positive effect on water-physical properties of soil development and fruiting, helped increase productivity and improve the quality of cotton fiber - raw.
Key words: deep processing of cotton row spacing, irrigation regime, agro physical and agrochemical properties of the soil, growth, development, root system, yield.