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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number D1236-13

Soil scientist Doug Karlen (left) discusses commercial combine modifications that Stuart Birrell, associate professor at Iowa State University, designed to collect corn stover as a bioenergy feedstock for the REAP (Renewable Energy Assessment Project) cooperative research project.

 

Photo by Stephen Ausmus.


640 pixels wide: (d1236-13.jpg)




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Last Modified: 9/30/2008