Recycling Organic Wastes to Improve Soil Productivity

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J. F. Parr Biological Waste Management and Organic Resources Laboratory, Science and Education Administration, U. S. Department of Agriculture, Beltsville MD, 20705

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G. B. Willson Biological Waste Management and Organic Resources Laboratory, Science and Education Administration, U. S. Department of Agriculture, Beltsville MD, 20705

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J. F. Parr Biological Waste Management and Organic Resources Laboratory, Science and Education Administration, U. S. Department of Agriculture, Beltsville MD, 20705

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G. B. Willson Biological Waste Management and Organic Resources Laboratory, Science and Education Administration, U. S. Department of Agriculture, Beltsville MD, 20705

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Contributor Notes

Microbiologist and Agricultural Engineer, respectively.

Soil Productivity as defined in “Soil,” The 1957 USDA Yearbook of Agriculture is, “the capability of a soil for producing a specified plant or sequence of plants under a defined set of management practices. It is measured in terms of the outputs or harvests in relation to the inputs of production factors for a specific kind of soil under a physically defined system of management.

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