PROPERTIES OF IRRIGATED MEADOW-SAZ SOILS OF CENTRAL FERGANA

This article presents the results of studies conducted on the irrigated lands of Central Fergana, in particular, the mechanical composition of the soil, salinity level, gross and mobile forms of humus, the amount of nutrients in the irrigated meadow-marsh soil. soil, as well as the amount of gypsum in the soil. Information is given on different types. A brief description of the mechanical composition of irrigated meadow-marsh soils is given. These soils are mainly composed of heavy and medium sands, and in some cases they are replaced by light sands in the lower layers. sand is 53.5–74.4%. The number of nutrients varies depending on the mechanical composition of the soil. It is noted that the content of nutrients in soils with a heavy granulometric composition is relatively higher in soils with a heavy granulometric composition than in soils with a light content. In particular, the mechanical structure and properties of the soil, such as porosity, capillary absorption of moisture, the amount of nutrients, moisture capacity, water permeability, are directly related to the number of particles of different sizes in the soil, and the soil reclamation and agrochemical conditions of the study area are given, scientific recommendations for restoration are given. and increasing productivity.