Effect of Bubbler Irrigation Interval on Yield and Water Productivity of Date Palm cv. Barhee under Khartoum State Conditions, Sudan

The experiment was conducted in the private orchards at Tayba Alhasnab area of south Khartoum, Sudan during 2013 and 2014 to study the effect of bubbler irrigation interval on yield and water productivity of date palm under Khartoum State conditions. Five different bubbler irrigation intervals were applied at 3, 5, 7, 9 and 12 days. Treatments were replicated three times in randomized complete block design (RCBD) and each plot encompassed 3 trees. The results showed that higher yield and yield components were obtained with 5 days irrigation interval in both years. Moreover, bubbler irrigation interval every 5 days had highest values of water productivity and economic water productivity.