Department of Soil acience, University of Minnesota2012-03-062012-03-061978https://hdl.handle.net/11299/121516The 1977 edition of the "Bluebook" 1s a compilation of data collected and analyzed throughout Minnesota. This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.ensoilsReport