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Furrow irrigation‐induced erosion is nearly halted by small additions of water‐soluble polyacrylamide (PAM) to irrigation water. PAM is an environmentally safe flocculent used extensively in municipal water treatment, paper manufacturing, food processing, and other sensitive applications.
ABSTRACT. Furrow-irrigation induced soil erosion threatens sustainable irrigated agriculture worldwide. Small concentrations of a moderate-charge-density anionic polyacrylamide (PAM), dissolved in irrigation water has been used to nearly eliminate soil loss from irrigated furrows and has increased net infiltration (total inflow minus total outflow).
