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Water Use Patterns of Grain Amaranth in the Northern Great Plains

^a Dep. of Plant Sci., North Dakota State Univ., Fargo, ND 58105
^b 268 1st Ave., Waynesburg, PA 15370

View larger version (15K): [in a new window]   Fig. 1. Depth of soil water extraction by grain amaranth at Prosper, ND, based on the maximum depth at which positive significant differences in volumetric soil moisture content at successive reading dates were observed (LSD 0.05 = 10.5 mm for 1989 and 13.8 mm for the combined analysis across years 1990, 1991, and 1992).

View larger version (15K): [in a new window]   Fig. 2. Mean cumulative water use of grain amaranth during 1990, 1991, and 1992 at Prosper, ND (LSD 0.05 = 11.8 mm).

View larger version (28K): [in a new window]   Fig. 3. Mean soil water depletion by grain amaranth at eight depths in the soil profile during 1989, 1990, 1991, and 1992 at Prosper, ND (LSD 0.05 = 17.9 mm).