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Suitability of Cotton as an Alternative Crop in the Ogallala Aquifer Region

^a USDA-Agricultural Research Service, Conservation & Production Research Lab., P.O. Drawer 10, Bushland, TX 79012
^b Spatial Sciences Lab., Texas A&M Univ., College Station, TX 77843
^c Texas Agric. Exp. Stn., 6500 Amarillo Blvd W., Amarillo, TX 79106

View larger version (23K): [in this window] [in a new window]   Fig. 1. Location of the study area.

View larger version (22K): [in this window] [in a new window]   Fig. 2. Spatial distribution of county-wide long-term average total heat units (THU) and potential cotton yield (PCY) in the study area.

View larger version (28K): [in this window] [in a new window]   Fig. 3. Spatial distribution of county-wide potential cotton yield (PCY) in every year (P = 0.99), 4 out of 5 yr (P = 0.80), and 3 out of 4 yr (P = 0.75) and potential reduction in crop water use if 50% irrigated corn area was switched to cotton in the study area.