Mudge, J. W.Conlin, B. J.Hutjens, M. F.Appleman, R. D.Steuernagel, G. R.2019-08-052019-08-051977https://hdl.handle.net/11299/205212This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.enuse farm records for managementOther