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United States Department of Agriculture

Agricultural Research Service

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Image Number D1624-10

Baseline soil sampling is done to characterize a farmer collaborator’s field for sustainability of harvesting corn cobs for bioenergy. Here, soil scientist Jane Johnson (right) and technician Brooke Knick separate the samples by depth before lab analysis for carbon, nitrogen, and other nutrients.


Photo by Stephen Ausmus.

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Last Modified: 8/12/2016
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