MOLDING OF SOIL WATER REGIME UNDER DRIP IRRIGATION IN EGYPT

Information about the horizontal and vertical distances by which water spreads in soils under a point source is essential for the design of cost effective and efficient drip irrigation systems. The size of the wetting pattern influenced by many factors, including soil physical properties, soil initial conditions as well as emitter discharge rate, irrigation management, crop root characteristics and evapotranspiration. Models can help to predict soil water movement under point source irrigation for a wide range of soil and environmental conditions and varied design parameters and therefore save time and financial resources compared to field experiments.