The impact of sprinkler irrigation and fertilization norms of winter wheat on soil water permeability

Abstract

The article examines the impact of winter wheat cultivation using various irrigation methods and pre-irrigation soil moisture management on the water permeability of meadow-alluvial soils. The studies were conducted in 2024-2026 and examined the influence of furrow and sprinkler irrigation of winter wheat, as well as maintaining pre-irrigation soil moisture levels of 70-70-60, 75-75-70, and 80-80-70 percent relative to FC, on the water absorption properties of the soil. Soil water permeability was determined using the "Dolgov circles" method at the beginning and end of the growing season. The results obtained showed that the intensity of water absorption decreases over time, and at the end of the growing season soil water permeability decreases in all variants compared to the baseline. Under conditions where pre-irrigation soil moisture is maintained at 75-75-70% of FC, water permeability was relatively optimal, reaching 777.9 m³/ha in 6 hours and an average of 128.8 m³/ha per hour in 2024. An increase in mineral fertilizer rates from N180P100K80 to N210P125K100 kg/ha did not significantly affect soil water permeability.