The Suitable Interval and Depth of Irrigation in Vegetative Growth Phase of Barhee Date Offshoots

Irrigation scheduling of field and horticulture plants is very important for optimizing consumption of agricultural water. This experiment was carried out for determining irrigation interval and depth of Barhee date in vegetative growth phase during two years. The treatments of irrigation interval were 50, 75 and 100 mm after evaporation from class A pan and the treatments of irrigation depth were 60%, 80%, 100% and 120% evaporation from class A pan. The results showed that effect of irrigation interval, irrigation depth and their interaction were significance on establishment and vegetative characteristics of date offshoot. The minimum of establishment and vegetative characteristics was in irrigation interval of 100 mm after evaporation from class A pan and irrigation depth of 60% evaporation from class A pan. The establishment percent and vegetative characteristics showed that suitable irrigation scheduling for Barhee date offshoots was irrigation interval of 75 mm after evaporation from class A pan and irrigation depth of 80% evaporation from class A pan. The net irrigation requrement were 1716.3 and 2702.3 m3/hectare in frist and second years, respectively.