Department of Soil Science, University of Minnesota2012-02-092012-02-091970https://hdl.handle.net/11299/120435The 1970 edition of the "Bluebook" is a compilation of data collected and analyzed throughout Minnesota. Information was contributed by personnel of the Department of Soil Science, Extension Soil Specialists and Agronomists at St. Paul and the branch stations at Crookston, Grand Rapids, Lamberton, Morris, Rosemount and Waseca, and Soils and Crops agents. 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-USsoilsA Report on Field Research in SoilsReport