This article presents the results of the research conducted in the irrigated lands of Central Fergana, including the information on the salinity levels and types of gypsum and carbonates of different degrees of plastered grassland soils. The mechanical composition and agrochemical properties of studied grassland saz soils are briefly described. The total areas of gypsified soils in the irrigated lands of the republic are given and they are divided into groups according to the degree of gypsification. The accumulation of salt and the formation of gypsum in the lands of Central Fergana, the increase in the volume and saz of the soil has a negative effect on the number and activity of microorganisms living in it, the physical, water-physical, physical-mechanical properties of the soils of the region, water-salt regimes, soil reclamation conditions, and various scientists and opinions of experts are presented. O.Komilov and V.Isakov’s physical and chemical properties of hornblende, clay and gypsum soils distributed in Central Fergana lands, ways of increasing their productivity are shown, N.G.Minashina and V.V.Egorov’s opinions on gypsum soils are presented. It is emphasized that the role of seepage water in the occurrence of salinity in the meadow saz soils is extremely large, the concept of “critical” depth and “critical mineralization” of ground water is explained. The amounts of salts, types of salinity and the depth of salt horizons in the soil profile of non-gypsified, weakly and moderately gypsified soils were thoroughly analyzed. Recommendations aimed at improving the reclamation condition of the studied soils, restoring and increasing their productivity are given.