Virginia Polytechnic Institute and State University. Department of AgronomyVirginia Water Resources Research CenterGeological Survey (U.S.)Kelley, W. D.Martens, David C.Reneau, Raymond B.Simpson, Thomas W.2014-03-152014-03-151984-12http://hdl.handle.net/10919/46582Stricter regulations on discharge of sewage into waters, higher costs of alternate disposal procedures, and higher prices of chemical fertilizers have increased interest in the use of sewage sludge in crop production. This review addresses the benefits and risks of agricultural use of sewage sludge. Topics evaluated in this study are the biological, chemical, and physical aspects of sewage sludge relating to trace elements, pathogens, nitrogen, and phosphorus and also the economic aspects of land application of sewage sludge. For each topic, additional research needs are identified.v, 46 pagesapplication/pdfen-USIn CopyrightTD201 .V57Sewage as fertilizerReport11986570