Research Article

Yield and Water Use Efficiency of Potato under Alternate Furrows and Deficit Irrigation

Table 5

Economic analysis based on mean values for potato production for the use of different irrigation methods and levels of irrigation water on potato production.

TreatmentsAdjusted tuber yield (kg ha−1)Gross field benefits (US$ ha−1)Variable cost (US$ ha−1)Net benefit (US$ ha−1)Marginal rate of return
Irrigation methodIrrigation level (%)

AFI502848512947.7368.1812879.55
FFI502388610857.2768.1810789.09D
AFI753416415529.09102.2715426.8274.72
FFI752645112023.18102.2711920.91D
AFI1003367815308.18136.3615171.82D
FFI1002674812158.18136.3612021.82D
CFI502551511597.73136.3611461.36D
CFI753397515443.18204.5515238.64D
CFI1003456915713.18272.7315440.450.2

Note: D means dominated due the greater variable cost but lower net benefit.