Reduction of Deep Percolation and Drain Waterby Richard A. Piper, U.S. Bureau of Reclamation, United States,
Anthony J. Cappellucci, U.S. Bureau of Reclamation, United States,
Abstract: Management of irrigated agriculture for control of toxic trace elements in agricultural drainage waters must include consideration of a variety of factors and their interactions with one another. Among the most significant of those factors are the quality of the applied water, the characteristics of the soils and substrata to which the water is applied and through which it percolates, the hydrogeologic characteristics of the area, and the types and efficiencies of irrigation delivery and application systems being used. This paper discusses important considerations in general and specific management options in particular, including delivery system options, on-farm options, economic and institutional aspects.
Subject Headings: Percolation | Trace elements | Water quality | Irrigation | Irrigation water | Agricultural wastes | Toxicity | Drainage
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