Blaney-Criddle Coefficients for Western Turf Grasses

by John Borrelli, (A.M.ASCE), Assoc. Prof. of Agricultural Engrg.; P.O. Box 3354 Univ. of Wyoming, Laramie, Wyo. 82071,
Victor B. Youngner, Prof. of Plant Sciences; Univ. of California, Riverside, Calif.,
William E. Hart, (M.ASCE), Formerly Associate Prof. of Agricultural and Chem. Engrg.; Colorado State Univ., Ft. Collins, Colo.,
Robert E. Danielson, Prof. of Agronomy; Colorado State Univ., Ft. Collins, Colo.,
Ian L. Pepper, Asst. Prof. of Soils, Water, and Engrg.; Univ. of Arizona, Tuscon, Ariz.,
William R. Kneebone, Prof. of Plant Sciences; Univ. of Arizona, Tuscon, Ariz.,
Larry O. Pochop, Prof. of Agricultural Engrg.; Univ. of Wyoming, Laramie, Wyo.,

Serial Information: Journal of the Irrigation and Drainage Division, 1981, Vol. 107, Issue 4, Pg. 333-341

Document Type: Journal Paper

Discussion: Hargreaves George H. (See full record)
Closure: (See full record)

Abstract: Evapotranspiration rates were measured for several turf grasses in Arizona, California, Colorado, and Wyoming. These data were used to calibrate the Blaney-Criddle method for estimating evapotranspiration rates. Warm-season grasses used less water than did cool-season grasses when grown in warm climates. However, Kentucky bluegrass did exhibit heat stress that reduced its evapotranspiration rates below what would be expected when soil temperatures exceed 25/DEG C. The data were collected in urban areas and should be representative of city-wide water requirements for turfed areas.

Subject Headings: Vegetation | Evapotranspiration | Hydrologic data | Soil stress | Calibration | Soil water | Climates | North America | United States | Arizona | California | Kentucky | Colorado | Wyoming

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