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United States Department of Agriculture

Agricultural Research Service

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Image Number D1914-1

Ecologist Marty Williams examines a sweet corn plant. He and his colleagues found weedy fields yielded more corn when planted in June or July, while less weedy fields had better crop yields when planted earlier.


Photo by Peggy Greb.

640 pixels wide: (d1914-1.jpg)

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Last Modified: 8/12/2016
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