Irrigation Scheduling

Water management is one of the most important and challenging aspects of turf management. While irrigation has longed been considered more art than science, new technology and tools are helping take the guesswork out of irrigation. The spreadsheet below was developed to help you improve you irrigation management. All you need is a soil moisture probe and access to daily ET measurements (which are provided right here for the entire state of Wisconsin).

To get daily emails with yesterday’s ET, send an email to with your latitude and longitude coordinates. The email subject should be “daily ET email”.

You can also download historical ET for your site by visiting the Estimated ET for Minnesota and Wisconsin web site.

Many thanks to Rick Wane and Bill Bland of the UW-Madison Soil Science Department for creating and maintaining the ET maps for us.

Download the Irrigation Scheduling Spreadsheet