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Uploaded on Apr 19, 2013
Andy Ward is a professor in CFAES's Department of Food, Agricultural and Biological Engineering, where he holds appointments with both OARDC and Ohio State University Extension. OSU Extension is the college's statewide outreach arm. His "two-stage" ditch design reduces the export of nitrate-nitrogen from fertilizers into rivers, lakes and streams -- an added benefit that can save farmers money and improve water quality.