Irrigation Water Management
For more information contact:
Marie Lotz, District Manager
Grant Co. Conservation District
1107 S. Juniper Drive
Moses Lake, WA 98837
(509) 765-9618

Why Practice IWM?
Practicing IWM can help:
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Minimize water quality problems;
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Reduce energy costs; and
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Improve crop quality and yield.
IWM:
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Distribution and application uniformity;
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How irrigation timing and soil water holding capacity affect irrigation scheduling; and
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How a soil moisture monitoring system is useful in irrigation scheduling decisions.
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Install at least one soil moisture monitoring probe per field;
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Provide a graph for each field of documented soil moisture readings for the entire season;
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Provide total precipitation in acre inches for each field at season end, including rain and irrigation;
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Document daily evapo-transpiration (ET) for the field through the irrigation season. Provide documentation of projected, scheduled irrigation recommendations throughout the season;