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 Image Number D2732-1

Soil scientists Brian Wienhold (left) and Gary Varvel compare corncob residue in various stages of decomposition in a no-till field in Lincoln, Nebraska. In this study and several others, ARS researchers were surprised to learn how much carbon corn and switchgrass sequester in the soil between 12 inches and 5 feet deep.


Photo by Peggy Greb.

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