Physical and chemical properties of water and water sources such as rain, rivers, water dams, underground water. Availability of water resources in the world. Water quality, how water is used in irrigation systems. Planning of irrigation in a given field or orchard according to seasons and plant types. Use of water tintometers and evaluation of obtained results. Evapotranspiration. Relations between water and nutrients are also given in plants. Water uptake, its transpration within plants and transpiration. General introduction to agricultural water management. Conventional methods for agricultural water management. Advanced methods for agricultural water management. Artificial intelligence irrigation systems and hybrid methods for agricultural water.  Management future challenges in agricultural water management.