Field glossaryET / ETo / ETcEvapotranspiration: reference demand ETo scaled by a crop coefficient to the plant need ETcUsed across 2 Anvilfield field guides, most in Landscaping. Where this shows upLandscapingIrrigation controller programmingLandscapingIrrigation audit field guide Related termsPRPrecipitation rate (PR)GPMHydrozone Back to the full field glossary