Department of Soil Science, University of Minnesota2012-03-082012-03-081987https://hdl.handle.net/11299/121587The 1987 edition of the "Bluebook" is 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.en-USsoilsReport