Purdue News PhotosPurdue News Photos
04/98-- Purdue agronomist Brad Joern catches a sample of water from a farm drainage tile. Joern found that phosphorus can move into drain-tile water from fields that have a long history of phosphorus loading. A decade ago, scientists believed that phosphorus in fields didn't move, unless it eroded away with soil.
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(Agricultural Communication Service Photo by Mike Kerper)
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David Umberger
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dave_umberger@uns.purdue.edu
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