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Resume
The problems releated with salty soils from desert – Steppe zone depend on liman irrigationq poor of minerals colloids of soil and evaporation type of water regime in this zone in dry period of the year.
The investigations releted to nature of migration and accumulation of water dissolve salts in this soils have been made by follow a dynamics of ions between two solutions – inside from composition of soil adsorption complex and outside water dissolve.
It was established: 1. original distribution of the carbonate who form a maximum on the surface horizons on the irrigate soils mark a return motion from this of the salts. 2. at the same time with reduce of the aktivite alkaline, decrease quantite of the exchangeable Na+, as a result of substitute for exchangeable Ca+, resultant from hydrolysis of gypsum. 3. agriculture utilize of the desert salty soils, lead to desaltion and dealkalization of irrigation land and salty of the peripherial and low place.