WSPC04421

• File Number: 8064.100
• Description: Ute Tribes
• State: CO
• Basin: San Juan/Dolores
• Water Division: 7
• Date: 9/1/1986
• Author: Boyle Engineering
• Title: Agricultural Engineering Study - Southern Ute and Ute Mountain - Ute Indian Reservations - Task A Report - On-Farm Water Requirements
• Water Supply Pro - Doc Type: Report/Study

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246 ~)

Production Functions of Selected Agronomic Crops in Northwestern New

Mexico, Phase 3". Research is based upon lysimeter data and

climatic measurements taken at the experiment station in Farmington.

The experiment station is located approximately 4 miles from the NIIP
project site. Evapotranspiration estimates and resulting water use
production functions are generally higher than those developed in
the NIIP report. An explanation of the higher evapotranspiration
rates is that the Agricultural Experiment Station is surrounded by

dry, fallow areas. The NIIP data are more representative of an

irrigated area as the data reflects evapotranspiration rates that

would occur in the center of large irrigated blocks of land.

Separate production functions are developed for each year of project

operation. The crop production function for alfalfa, adjusted to 12

percent moisture and converted to English units are:

1981: Y = -3.16 + .208 ET (t/ac/in)

(5 )

and

1982: Y = -8.85 + .360 ET (t/ac/in)

( 6)

1.2.3 Cortez Experiment Station
Colorado State University conducts irrigation research at the San

Juan Basin Research Center in Cortez. Dr. Adrian Fisher provided

general comments on crop consumptive use, however, research at the

center is generally not related to consumptive use.

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