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How can I get the Irrigation Scheduler Mobile app?


Search “irrigation scheduler mobile” in iTunes or Google Play or online at www.weather.wsu.edu/ism


Irrigation Scheduler Mobile is a free and open-source irrigation scheduling tool for doing simplified checkbook-style irrigation scheduling online or via a mobile phone app. It estimates how much water the soil can hold in the plant’s root zone, then tracks how much of that water is used by the crop (ETc) and how much water is added through irrigation to estimate the current soil water content.


With this tool, growers can be better informed about how much water needs to be applied and when, in order to maximize their yields and conserve water resources. Irrigation Scheduler Mobile was deliberately designed to work across state boundaries and with a wide variety of crops. It automatically pulls historical weather data from a variety of different agricultural weather networks. It currently works with weather networks in Washington, Oregon, Idaho, California, Nevada, Utah, Arizona, North and South Dakota, and Colorado.


Easy setup


Setting up a field with Irrigation Scheduler Mobile involves simply selecting the crop, estimating the soil texture and identifying the nearest weather station for the crop water use and rainfall data. From these selections the model is automatically populated with default values for the crop and the soil water-holding characteristics. Better-informed crop and soil estimates can also be used if the grower has access to that data.


Left to right: Troy Peters, Sean Hill and Gerrit Hoogenboom check the irrigation scheduler via phone in a cherry orchard.


irrigationtoday.org 15


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