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United States Department of Agriculture

Agricultural Research Service

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Image Number D062-1

Brazilian soil scientist Helvecio De-Polli collects a gas sample for measurement of greenhouse gas emissions from a long-term soil-management plot at the Beltsville Agricultural Research Center.

Photo by Carolina Pizarro.

640 pixels wide: (D062-1.jpg)

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Last Modified: 3/14/2017
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