by A.N. Sharpley, T. Daniel,
T. Sims, J. Lemunyon, R. Stevens, and R. Parry
Inputs of phosphorus (P)
are essential for profitable crop and livestock agriculture. But P export
in watershed runoff can accelerate the eutrophication--aging of a body
of water--of receiving fresh waters. Increased P use has created regional
imbalances in feed and fertilizer and P output in farm produce, and
soil P is now in excess of crop needs. This publication provides solutions
on how to reduce P losses and increase P use efficiency. Color, 44 pages.
U.S. Department of Agriculture,
Agricultural Research Service, ARS 149
While supplies last, you
may order one free copy by e-mail
or by writing Andrew Sharpley, USDA-ARS, Pasture Systems & Watershed
Management Research Unit, Curtin Road, University Park, PA 16802-3702.
Specify that you're ordering
Agricultural Phosphorus and Eutrophication, Second Edition,
and give your complete mailing address, including postal code.
Click here to view
publication online (pdf file) using Adobe Acrobat Reader (432 KB).
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