This document provides information on efficient irrigation. It discusses determining the proper water needs of plants, knowing the actual water application rate, evaluating the irrigation system in detail, ensuring the flow rate in each zone matches expectations, and properly managing irrigation timing and frequency. Key points include determining crop water needs, characterizing the irrigation system, checking for uniform distribution, evaluating filter capacity and emitter flow rates, installing monitoring equipment like tensiometers and soil moisture sensors, and using data from these sensors to optimize irrigation management. The overall goal is applying the right amount of water at the right time for efficient and effective irrigation.