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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number D734-1

The computer model RZWQM2 has been used extensively to measure effects of management on surface runoff, tile flow, and water quality from cornfields like this in the Midwest.

Photo by Laj Ahuja.

640 pixels wide: (d734-1.jpg)

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Last Modified: 2/27/2007
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