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With the whir of a string-operated weed whacker, corn and soybean farmers can take a big step to reduce herbicide use that has the potential to contaminate surface water near streams, wetlands, and wells.
"The only way to avoid surface water contamination is to reduce herbicide use, and that's where the string trimmer comes in," says Bill Donald. He is an agronomist in the ARS Cropping Systems and Water Quality Research Unit located at the University of...
