Improvement of irrigation regime of cotton varieties depending on soil and climate conditions of the republic of Karakalpakstan

AbstractIn the conditions of the southern zone of the Aral Sea region, a water-saving and optimal irrigation regime has been developed for medium-fibrous cotton varieties "S-4727", "Sulton" and "Chimboy-5018". Comparative analysis showed that a high yield of cotton variety "Sulton" was achieved with soil before irrigation at a moisture level of 80-80-60% of LCMF and an irrigation rate of 650–800 m3/ha and an irrigation rate of 3500 m3/ha. At the same time, the yield of cotton was 31.2–32.6 c/ha.

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