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 Image Number D1753-1 |
University of Maryland ecologist Pat Kangas (left) and ARS microbiologist Walter Mulbry examine algae growing on a shallow raceway at the BARC Dairy Research Unit. Mulbry estimates that each acre of raceway could remove the nutrients from the manure of about 20 cows.
Photo by ©Edwin Remsburg. Used by permission(D1753-1).
