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Performance of weather‐based residential irrigation controllers in a desert environment
Performance of residential weather‐based irrigation controllers was evaluated in tall fescue (Festuca arundinacea Schreb.) plots installed in the arid southern Chihuahuan Desert in the southwestern United States. In the first experiment, Irritrol Smart Dial,1 RainBird ET Manager,2 Aqua Conserve,3 Hunter ET System,4 and Weathermatic SL1600 irrigation controllers,5 and one manual irrigation controller programmed at 80% of historical reference crop evapotranspiration were tested. Compared with the manual controller, Irritrol and RainBird treatments saved 53% and 34% of irrigation water, respectively. In the second experiment, Smart Dial and ET Manager were tested for one year. Although soil moisture content of turf plots in the Irritrol treatment dipped below 50% of available soil water capacity between November 2010 and January 2011, relative water content of turf grass in both treatments exceeded 85%. Smart Dial applied less water than ET Manager, but the ratio of variable to maximal fluorescence averaged 0.78 for both treatments, indicating that the turf grass was not stressed.
Performance of weather‐based residential irrigation controllers in a desert environment
Performance of residential weather‐based irrigation controllers was evaluated in tall fescue (Festuca arundinacea Schreb.) plots installed in the arid southern Chihuahuan Desert in the southwestern United States. In the first experiment, Irritrol Smart Dial,1 RainBird ET Manager,2 Aqua Conserve,3 Hunter ET System,4 and Weathermatic SL1600 irrigation controllers,5 and one manual irrigation controller programmed at 80% of historical reference crop evapotranspiration were tested. Compared with the manual controller, Irritrol and RainBird treatments saved 53% and 34% of irrigation water, respectively. In the second experiment, Smart Dial and ET Manager were tested for one year. Although soil moisture content of turf plots in the Irritrol treatment dipped below 50% of available soil water capacity between November 2010 and January 2011, relative water content of turf grass in both treatments exceeded 85%. Smart Dial applied less water than ET Manager, but the ratio of variable to maximal fluorescence averaged 0.78 for both treatments, indicating that the turf grass was not stressed.
Performance of weather‐based residential irrigation controllers in a desert environment
Al‐Ajlouni, Malik G. (author) / Vanleeuwen, Dawn M. (author) / Hilaire, Rolston St. (author)
Journal ‐ American Water Works Association ; 104 ; E608-E621
2012-12-01
14 pages
Article (Journal)
Electronic Resource
English
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