In this article given water issues which are observed in Republic frequently shortage of water and water-related problems during the current period, especially decreasing of water resources in agriculture, and getting worse of lands’ melioration. The conditions of the above problems collector – drainage mineralization ameliorate with using water plants by biologic method in Bukhara region. Given experimental results of researches of the processes of salt accumulation in the soil through the irrigation of “Bukhara-6” cotton variety.