Amazon.com description: Product Description: A comprehensive engineering guide to theory and design practices for the control, utilization, and management of water in agriculture, with emphasis on scientific principles. Integrates into a single volume engineering practices for solving problems relating to erosion control, flood control, drainage, and irrigation. Presents information on precipitation, infiltration, evapotranspiration, and runoff, in addition to providing the entire design data for the U.S., plus a wide range of its applications. Contains conversion tables from English units to SI, and SI to English units, as well as numerous example problems, illustrations, and appendix.