University of Minnesota, Agricultural Extension Division; Roe, H.B.2016-02-192016-02-191938-11https://hdl.handle.net/11299/177375This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.enFarm drainageAgricultural engineeringAgricultural Engineering News Letter, number 80Newsletter or Bulletin