A Report on Field Research in Soil Science

The 1988 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.Sincere appreciation is expressed for materials, financial assistance or program support from several organizations including: Potash and Phosphorus Institute of North America, Cenex, Farmland, Howe Incorporated, Minnesota Crop Improvement Association, American Soybean Association, Sugarbeet Research and Education Board of Minnesota and North Dakota, Minnesota Soybean Research and Promotion Board, Minnesota Limestone Producers Association, Minnesota Plant Food and Chemicals Association, Minnesota Soil and Water Conservation Committee, Pioneer Hybrid International, Inc., U.S. Borax and Chemical Corporation, Dow Chemical, Terra Chemical, Allied Chemical Corporation, Shell Development, Monsanto, BASF Wyandotte Corporation, Ciba Geigy Corporation, Minnesota Soil Conservation Service, Minnesota Dept. for Energy and Economic Development, Minnesota Wheat Council, Minnesota Soybean Council, Malting Barley Improvement Association, The Red River Valley Potato Growers Association, The Iron Range Resources Gommission, The Minnesota State Planning Agency, Minnesota Water Planning Board, The Water Resources Research Center of the Graduate School, The Staples Vo-Tech Institute, Tennessee Valley Authority-National Fertilizer Development Center, The North Central Forest Experiment Station, SKW Trostberg AG., The Sulfur Institute, Fluid Fertilizer Foundation, Potash Corporation of Saskatchewan, Conklin Company Inc., Minnesota Food Processors Association, Harris Laboratories Inc., American Crystal Sugar Quality Laboratory, A and L Midwest Agricultural Laboratories Inc., Minnesota Valley Testing Laboratories Inc., Holden Farms, Pillsbury-Green Giant, Blrdseye-General Foods, Quali-Tech Inc. and Ferti-Flo Fertilizer