A simple way to determine the proper irrigation amount is to estimate the amount of water the trees have used, evapotranspiration (ET), since the last irrigation. Learn how to easily calculate real-time ET rates using data provided by CIMIS.
The California Irrigation Management Information System (CIMIS). is a network of over 145 automated weather stations in California. CIMIS was developed in 1982 by DWR and the University of California, Davis, with the goal of assisting irrigators in managing their water resources more efficiently by providing readily accessible public information.
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