Feedback-controlled surge irrigation: III. Field experiments

Field experiments were conducted during the summers of 1994 and 1995 to tes t feedback-controlled surge irrigation strategies. Feedback-controlled surg e irrigation proved promising for better water management in a field with l arge lateral variations in infiltration rates. It was shown that feedback-c ontrolled surge irrigation resulted in nearly equal effective depths on bot h sides of the surge valve and high application efficiencies. Predictions o f advance inflow time, runoff ratio, and soil water content were compared w ith field measured values. Modeled predictions were acceptable for practica l application.