Strategies to Reduce Salt Load in Drainage Waterby James E. Ayars, USDA/ARS, United States,
Glenn J. Hoffman, USDA/ARS, United States,
Gerrit Schrale, USDA/ARS, United States,
Abstract: A study of irrigation efficiency, drainage flow and trace element loading in the drainage water from a 14000 ha irrigation district on the west side of the San Joaquin Valley of California has suggested several management alternatives to reduce trace element loading in the drainage water. The objective of each alternative is to reduce deep percolation losses. The suggested alternatives include: reduce pre-plant irrigation applications; use of crops having high irrigation efficiencies in areas with high loading rates; and improved irrigation management of existing surface systems or switching to potentially more efficient systems.
Subject Headings: Drainage | Salt water | Load factors | Trace elements | Loading rates | Percolation | Irrigation systems | Irrigation districts | North America | California | United States
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