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Cover: A furrow-irrigated field in southern Idaho, where soils have low organic matter and high volcanic ash fractions, and are highly susceptible to erosion. The furrow stream on the left was untreated and shows head-cut erosion and high sediment load. The furrow stream on the right was treated with 10 mg L⁻¹ water-soluble anionic polyacrylamide (WSPAM) during stream advance. In this issue, R.D. Lentz and R.E. Sojka (305–314) report on a long-term study showing that, in addition to reducing runoff sediment losses, WSPAM signifi cantly increases bean (Phaseolus vulgaris L.) and silage corn (Zea mays L.) yields in treated furrows compared with controls. Photos by R.D. Lentz.