Irrigation Practice and Engineering #228290

The seasonal duty, which gives the variations in water demand and consumption during the different months Of the irrigation season, has been worked out for a large number of projects and should be considered in the planning Of the carrying capacities of the canals of an irrigation system. Chapter VI describes the methods of preparing land for irriga tion and the methods Of applying water to the land. A knowl edge Of these subjects is necessary to Obtain the economic use Of water and is important in the design Of the distribution system and in the operation of the project.