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Effect of varying levels of irrigation on the yield and water use of cowpea (Vigna sinensis L.)



Effect of varying levels of irrigation on the yield and water use of cowpea (Vigna sinensis L.)



Annals of Arid Zone 14(2): 100-108



In trials with cowpeas on sandy loam soil, irrigating the crop on depletion of available soil moisture to (a) 15, (b) 35 and (c) 55% gave seed yields of 833, 932 and 958 kg/ha, respectively. The values for total consumptive use under irrigation treatments (a), (b) and (c) were 529.4, 567.2 and 626.5 mm, respectively; utilization of moisture from the top 20-cm soil layer accounted for 51.2-53.3% of the total consumptive use in the 3 irrigation treatments.

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