EFFECT OF WATER MANAGEMENT BY DRIP IRRIGATION AUTOMATION CONTROLLER SYSTEM ON FABA BEAN PRODUCTION UNDER WATER DEFICIT

Field experiments were carried out at the Agricultural Research and Production Station, NRC, El- Nubaria district, Egypt during the winter season of 2012 and 2013 growing seasons in a sandy soil with Faba bean (Vica Faba L.G461) under automation controller drip irrigation system, to study the effect of water deficit (50, 75, and 100 % FC, field capacities) and compost tea additions (100 and 50 liter/fed) on faba bean yield, water and fertilizers use efficiency (WUE, FUE). The obtained results showed that the faba bean yield, WUE and FUE were superior by using compost tea (100 liters/fed and100 % FC) while the lowest values results were attained after using 50 liters/fed compost tea and 50 % FC. It could be concluded that the biggest added amount of compost tea 100 liters/fed impacted positively on Faba bean plants because they contain more amount of macro and micro nutrients and it helps save water under sandy soil conditions. Faba bean plants avoid the water stress under 100 % FC but adversely affected by water stress under FC (50 and 75%).