Water is a critical resource in the Jerte Valley. One of the main objectives of the regional development strategy has therefore been to protect and add value to this resource. This project will help farmers be more rational and sustainable in their use of water resources. This work is of great interest to farmers of the Agrupación de Cooperativas Valle del Jerte, because they will have recommendations for deficit irrigation strategies at their disposal that will increase their yields and contribute to a rational use of water.