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Water use efficiency under drip irrigation

Field of Science:Agricultural and Biological SciencesAgronomy and Crop ScienceSoil Science
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RESEARCH AND INNOVATION ACADEMY

RESEARCH AND INNOVATION ACADEMY

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The decline in available water resources calls for more rational irrigation regimes in agriculture, particularly for water-demanding crops such as cotton. This article compares two drip irrigation regimes in which pre-irrigation soil moisture was maintained at 70–70–65% and 75–75–65% of field capacity (FC), respectively, with traditional furrow irrigation. Field trials conducted in the Namangan region showed that furrow irrigation consumed 5,350 m³ of water per hectare over the growing season, whereas drip irrigation reduced water consumption to 3,457 m³/ha under the 70–70–65% regime and to 3,714 m³/ha under the 75–75–65% regime, resulting in water savings of 35.4% and 30.6%, respectively. This is attributed to the application of water in small amounts directly to the plant root zone at frequent intervals, which substantially reduces water losses through infiltration and evaporation compared with infrequent but heavy furrow irrigation. The findings can be applied in the design of irrigation systems and in the development of practical recommendations for farmers in water-scarce regions. Overall, the 70–70–65% regime proved more efficient in terms of water savings, whereas the 75–75–65% regime, by maintaining higher soil moisture, appears more favorable for ensuring crop yield.

AUTHORS

N.Erkinov

""TOSHKENT IRRIGATSIYA VA QISHLOQ XO`JALIGINI MEXANIZATSIYALASH MUHANDISLARI INSTITUTI" MILLIY TADQIQOT UNIVERSITETI" DAVLAT MUASSASASI

L.Mamatqulova

"TERMIZ DAVLAT MUHANDISLIK VA AGROTEXNOLOGIYALAR UNIVERSITETI" DAVLAT MUASSASASI

Tags

# yield# drip irrigation# field capacity# water resources# soil moisture# irrigation regime# water saving# water use efficiency

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References

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