Management of agricultural drainage water quality / edited by Chandra A. Madramootoo, William R. Johnston & Lyman S. Willardson. - Rome : FAO of the United Nations, 1997. - xii, 94 p. - Water reports ; 13 .

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Land drainage.
Ditches.
Irrigation water--Quality.
Water quality management.
Crops--Effect of drainage on.
Irrigation farming.