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More Corn For Biofuels Would Hurt Water

Source:  Copyright 2009, redOrbit
Date:  September 29, 2009
Original URL: Status ONLINE

More of the fertilizers and pesticides used to grow corn would find their way into nearby water sources if ethanol demands lead to planting more acres in corn, according to a Purdue University study.

The study of Indiana water sources found that those near fields that practice continuous-corn rotations had higher levels of nitrogen, fungicides and phosphorous than corn-soybean rotations. Results of the study by Indrajeet Chaubey, an associate professor of agricultural and biological engineering, and Bernard Engel, a professor and head of agricultural and biological engineering, were published in the early online version of The Journal of Environmental Engineering.

"When you move from corn-soybean rotations to continuous corn, the sediment losses will be much greater," Chaubey said. "Increased sediment losses allow more fungicide and phosphorous to get into the water because they move with sediment."

Nitrogen and fungicides are more heavily ...

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