Desalinization of degraded soils by atmospheric precipitation and Biosolvent for saving water resources

Abstract In the Syrdarya region of Uzbekistan, influence atmospheric precipitation on changes in degree salinity and chemical composition upper 30 cm soil layer was studied. Experiment options: 1 - loosening to a depth 70 cm, 2 loosening, followed by treatment with preparation containing polymaleic acid. A decrease 7 8 dS/m has been established help only 302 mm precipitation, without water wasted for leaching. The was: according EU, 56% option 2, 52% 1. According TDS, reduction 61 52%, SO “4. 58 47%. content calcium variant use Biosolvent decreased 48%, control variant, it increased 15%. It estimated that from 16 dS/m, possible increase yield salt-tolerant barley crop 1.6 t/ha is possible. Taking into account costs tillage preparation, net income farmer can be $480/ha.