Qoraqalpog‘iston Respublikasi sharoitida kartoshkani qora plyonka ostida yetishtirish va sug‘orish suvidan samarali foydalanish

Abstract

The article analyses the effect of black plastic film mulching and optimization of the irrigation regime in growing the potato variety “Toshkent ertagisi” on slightly saline soils of the Republic of Karakalpakstan. In experiments conducted in 2024–2026, open-field and black-film treatments, the number of irrigations and the levels at which soil moisture was maintained relative to field capacity were compared. In the control treatment, seasonal water consumption was 5200 m³/ha. When soil moisture under black film was maintained at 70–80 % of field capacity with 5 irrigations, water consumption decreased to 2800 m³/ha, i.e. 46.2 % of water was saved compared with the control. The yield in this treatment was 22.2 t/ha, which was 2.8 t/ha higher than in the open-field control irrigated 8 times. The growing season was shortened from 75 to 68 days. The results show that the combined use of black film and water-saving irrigation can improve the efficiency of potato production in areas with limited water resources.