Image Number K8586-7

Plant physiologist Howard Skinner (right) demonstrates the plant canopy photosynthesis system to farm operator Glenn Moyer. It pumps carbon dioxide into the Plexiglas chamber, which is placed over a selected area of pasture to see how much is absorbed by pasture grasses. The grazing exclosures in the background are used to study grazed and nongrazed pastureland.

Photo by Bob Nichols.

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