Introduction Checkbook Scheduling Starting the Checkbook Method Irrigation Amount Irrigation Management Strategy Allowable Soil Water Deficit Soil Water Deficit Soil Water Measurements Crop Water Use Available Water in Root Zone Pumping Capacity Reference Sources *Soil Water Sheets Example *Soil Water Sheets Blank *Tables 2-9 * requires the acrobat reader   �

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ACKNOWLEDGEMENTS

The author wishes to thank former University of Minnesota colleagues Hal Werner, Extension Engineer at South Dakota State University, and Fred Bergsrud, retired Extension Engineer, for their previous development efforts in earlier issues of this bulletin. Also, thank you to the original developers of this scheduling tool, Darnell Lundstrom and Earl Stegman, Agricultural Engineering Department, North Dakota State University.

AUTHOR

Jerry Wright, Extension Engineer University of Minnesota Extension Service, Department of Biosystems and Agricultural Engineering, College of Agricultural, Food and Environmental Sciences University of Minnesota at the West Central Research & Outreach Center, Morris, Minnesota jwright@umn.edu, or call 320-589-1711

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