File:Preparing land for irrigation and methods of applying water (1904) (14778624822).jpg

Identifier: preparinglandfor145unit (find matches)
Title: Preparing land for irrigation and methods of applying water
Year: 1904 (1900s)
Authors: United States. Bureau of Irrigation Investigations United States. Office of Experiment Stations
Subjects: Irrigation farming West (U S )
Publisher: Washington : U.S. G.P.O.
Contributing Library: U.S. Department of Agriculture, National Agricultural Library
Digitizing Sponsor: U.S. Department of Agriculture, National Agricultural Library

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Fig. 21.—Irrigating orchard by basin method. ■U. S. Dept. of Agr., Bui. 145: Office of Expt. Stations. Irrigation Investigations. Plate IV.
Text Appearing After Image:
Fig. 2.—Distributing Water with Canvas Hose. 49 these have received sufficient water, other openings are made oppositethe next higher pair of basins and the flow is checked, so that it will bediverted into them. This operation is continued until all the basinson both sides of the ditch are flooded. The most convenient means ofchecking the flow in both kinds of ditches is by canvas dams (p. 64). Another way of applying water to basins is indicated in figure 22.The water from the supply ditch passes through the basins from topto bottom in a zigzag course due to the position of the gaps in theridges. Only half of the gaps need to be filled before water isadmitted, but those remaining are usually filled immediately after eachbasin is flooded. This method is objected to for the reason that thebasins nearest the supply ditch receive the most water. Still another method used under gravity canals where water is moreabundant is to make the basin complete, then turn the water into theupper ba

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