High Saline Water-Table Effect on Wheat Irrigation

by E. G. Kruse, USDA, Fort Collins, United States,
D. F. Champion, USDA, Fort Collins, United States,
R. E. Yoder, USDA, Fort Collins, United States,



Document Type: Proceeding Paper

Part of: Lysimeters for Evapotranspiration and Environmental Measurements

Abstract: Hydraulic, weighing lysimeters were used for five years to measure the effect of high, saline water tables on irrigation requirement of wheat. Each year the wheat was grown with no water table and with water-table combinations of 60 and 105 cm depth and 0.66, 3.0, and 6.0 dS/m salinity. The portion of total seasonal evapotranspiration supplied from the ground water was strongly affected by water table depth and slightly affected by the salinity of the water in the saturated zone. The paper suggests that surface irrigations may be reduced when shallow water tables are present.

Subject Headings: Salt water | Water table | Crops | Water resources | Evapotranspiration | Measuring instruments | Water supply

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