Simkins, C. A.Hanson, L. D.Wagar, T. L.2019-08-082019-08-081979https://hdl.handle.net/11299/205356This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.enusing filter cake sewage sludge for cropland applicationOther