ASSESSMENT OF THE IMPACT OF DRIP IRRIGATION ON THE SOIL RECLAMATION REGIME OF COTTON
Abstract
The article investigates the effect of drip irrigation technology on the soil reclamation regime during cultivation of the cotton variety “Bukhara-10” under saline-prone meadow–alluvial soils with medium loamy texture in the conditions of the Bukhara region. Field experiments conducted in 2025 using four treatments and three replications demonstrated that maintaining pre-irrigation soil moisture at 70–80–65% of field capacity (FC) provided the most favorable results. Under this irrigation regime, increases in soil bulk density and salinity were minimized, while groundwater levels remained within 1.7–2.1 m, preventing the development of secondary salinization.Compared with the control treatment, seasonal irrigation water use was reduced by 1172 m³/ha, while cotton yield increased by 28.7%, reaching 49.3 c/ha. Water productivity reached 1601 g of cotton per m³ of irrigation water, and profitability increased to 28.8%. The obtained results provide a scientific basis for the implementation of this irrigation technology and irrigation regime in regions with similar soil and climatic conditions.
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