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El diseño agronómico representa la primera etapa del proceso de diseño de cualquier tipo de instalación de riego. En él se determina, en una primera aproximación, la cantidad de agua que ha de aplicarse a los cultivos y que se corresponderá con el cálculo de las necesidades brutas de riego para la época de máxima demanda. Asimismo se establece cómo se distribuirán los emisores de riego en la parcela y qué especificaciones deberán de tener para conseguir el objetivo marcado, teniendo en cuenta las demandas hídricas de los cultivos, marcos de plantación, calidad de las aguas de riego y los diferentes tipos de suelo. En el diseño hidráulico se calcula y dimensiona la red de riego, de tal forma que se puedan aplicar las necesidades de agua al cultivo en el tiempo establecido en el diseño agronómico previamente realizado. Se calculan los diámetros de las tuberías y las presiones de operación, se seleccionan los equipos de bombeo, los sistemas de filtración, las válvulas, contadores, piezas y otros rios que nos permitirán aplicar el agua a los cultivos de la manera más eficiente y controlada posible. El libro se estructura en varios apartados. Primero se revisa la relación agua-suelo, la salinidad y las características que hacen que un agua sea apta para los cultivos. Posteriormente se explica con detalle los criterios de diseño, tanto para riegos por aspersión como para riegos por goteo, complementándose la información con datos, gráficos, tablas y variados ejemplos de cálculo. Las válvulas, contadores, filtros, ventosas, bombas centrífugas, rios y otros mecanismos se explican en profundidad en los siguientes apartados con la ayuda de gráficas, cuadros e imágenes para su mejor comprensión. Se revisan también los conceptos fundamentales de la hidráulica, conceptos necesarios para entender el desarrollo de los cálculos que intervienen en el transporte del agua por tuberías, tales como pérdidas de presión en tubos y rios, los transitorios, la cavitación, etc. Finalmente, en los anejos, se completa la información expuesta en los diferentes capítulos. El manual técnico “Diseño agronómico e hidráulico de riegos agrícolas a presión” está dirigido tanto a profesionales del sector (ingenieros, proyectistas, profesores…) como estudiantes y personas que deseen aprender o ampliar sus conocimientos en hidráulica y técnicas de riego.