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United States Department of Agriculture

Agricultural Research Service

Image Number D2345-1

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Image Number D2345-1

Lettuce growing in Minnesota field plots amended with 20,000 pounds of macadamia nut shell biochar per acre. The study evaluated how the biochar affects crop yield, soil fertility, and greenhouse gas production from the field.


Photo by Amanda Bidwell.

640 pixels wide: (d2345-1.jpg)

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Last Modified: 10/26/2011