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Irrigation Water Requirements Under Wide-Spaced Furrow Irrigation

by J. F. Stone, Oklahoma State Univ, Dep of, Agronomy, Stillwater, OK, USA,
H. E. Reeves, Oklahoma State Univ, Dep of, Agronomy, Stillwater, OK, USA,
Teferi Tsegaye, Oklahoma State Univ, Dep of, Agronomy, Stillwater, OK, USA,



Document Type: Proceeding Paper

Part of: Development and Management Aspects of Irrigation and Drainage Systems

Abstract:

Research has shown that wide-spaced furrow irrigation (WSFI) can produce acceptable yields of crops with less water than every-furrow irrigation (EFI). In many seasons WSFI will result in less yield because too little water may be applied, particularly if accompanied by low rainfall and high evaporative demand. A determination of water use of cotton from the literature showed that different functions exist between yield and irrigation water input for WSFI and EFI. These functions would suggest that WSFI is more efficient than EFI. A field study was then conducted to examine effect of irrigation with a given amount of water applied as WSFI and as EFI. The WSFI treatment produced higher yields than EFI at two seasonal irrigation water input amounts.

Subject Headings: Irrigation water | Crops | Water treatment | Water resources | Water use | Soil water | Soil treatment

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