Cotton Response to High Frequency Irrigation

by James P. Bordovsky, Texas Agricultural Experiment, Station, United States,
William M. Lyle, Texas Agricultural Experiment, Station, United States,

Document Type: Proceeding Paper

Part of: Planning Now for Irrigation and Drainage in the 21st Century


Three cotton production tests irrigated with the Low Energy Precision Application (LEPA) system were conducted from 1985 through 1987 on the Texas High Plains. Cotton treatments were irrigated at intervals ranging from 2 to 18 days. Irrigation amounts varied from 0.4 to 1.4 times estimated evapotranspiration (ET) at each irrigated frequency. Lint yields varied from 412 to 1769 kg/ha per year over the three-year period. Irrigation intervals of 2 to 4 days at 0.4 to 0.7 times estimated ET produced the highest yields under normal High Plains conditions. High frequency irrigation promoted early development of cotton plants as indicated by leaf area, total dry matter and storage organ weight data.

Subject Headings: Crops | Irrigation | Water storage | Evapotranspiration | Power plants | Irrigation systems | Texas | United States

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