Ключевые слова: water composition, chemical composition, salt composition, water mineralization, soil salinization

// Мелиорация.— 2023. – №1(103) – С 39–46

It has been established that when various mineralized waters are used for irrigation and washing, the rate and direction of migration of salts and gypsum in the root layer depend on the concentration of soil solution and wash water. For irrigation, river and artesian water is used - sulfate-chloride-sodium, in which the amount of salts ranges from 0.85 to 4.50 g/l. The identified nature of the chemistry of irrigation waters in the dry steppe zone largely determines the development of processes, properties, and the level of fertility of irrigated gray-brown and meadowserozem soils. The value of the irrigation rate when used for irrigation water with a mineralization of 0.5 to 4.5 g/l depends on the particle size distribution, soil type and depth of groundwater.