Fig. 2. Irrigation performance index [IPI = (NIR/Viw) x 100, where NIR is net irrigation requirement and Viw is the volume of irrigation water] for the 1997 and 1998 irrigated months and the 1997 and 1998 irrigated seasons in Watersheds A and B.
Fig. 2. Irrigation performance index [IPI = (NIR/Viw) x 100, where NIR is net irrigation requirement and Viw is the volume of irrigation water] for the 1997 and 1998 irrigated months and the 1997 and 1998 irrigated seasons in Watersheds A and B.