The workshop had the following objectives: 1. Consider the basic processes that determine crop water use and soil water balance characteristics. 2. Discuss the theoretical and experimental methods for evaluation of evapotranspiration (soil evaporation and transpiration). 3. Consider the effect of inputs arid management practices on crop water use. 4. Discuss modeling of crop water use as related to yield and tihe verification of till models using the line source method. 5. Apply water production functions in solving practical problems in both rain fed and irrigated agriculture. 6. To learn hot, to use the meteorological data acquisition system (METSYS) and apply the results measured to above objectives.