Comparison of Daily Crop ET Estimation
Models
Jerry Wright, Associate
Professor, West Central Research and Outreach Center, Morris,
MN
Cooperators include East Otter Tail Soil and Water Conservation
District at Perham, Wadena County SWCD and Central Lakes Ag
Center at Staples.
Funding Source
Irrigators Association of Minnesota
Objective
- Compare the daily ET estimations from several ET models
over 2-3 locations in Central Minnesota.
- Encourage adoption of using daily crop ET information
in an irrigator’s water scheduling program.
Need or Impact
Irrigation scheduling is an important task to optimize a
crop production system and reduce the risk of leaching crop
chemicals into the groundwater. Access to and knowledge of
daily crop water use (ET) is a critical factor in deciding
when to irrigate. Project results have encouraged some farmers
to utilize their local ET hotline and/or the Wisconsin-Minnesota
Daily Crop ET web site.
Project Status
Ongoing.
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