A REPORT ON FIELD RESEARCH IN SOIL SCIENCE

The 1976 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 including Extension Soil Specialists, Scientists at the branch stations of Crookston, Grand Rapids, Lamberton, Morris, Rosemount and Waseca; the "Sand Plain" experimental sites; and Soils and Crop area agents •. Associated personnel from the Soil Conservation Service, the Soil and Water Research group of the ARS-USDA, the Tennessee Valley Authority, and the Department of Natural Resources also contributed information. 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 and/or financial assistance or program support from several organizations including: Potash Institute of North America, Fanners Union Central Exchange, Farmland, Midland Cooperatives and Howe Incorporated, Minnesota Crop Improvement Association, National and State Soybean Associations, Minnesota Golf Cour~e Superintendents Association, Minnesota Limestone Producers Association, U.S. Gypsum Corporation, Minnesota Plant Food Association, Minnesota Soil and Water Conservation Commission, The Minnesota Resources Commission, the Minnesota State Planning Agency, The Water Resources Research Center of the Graduate School, The Staples Vo-Tech Institute, The Red River Valley Potato and Sugar Beet Growers Associations, J.L. Shiely Company, The Tennessee Valley Authority and the North Central Forest Experiment Station. The investigators also greatly appreciate the cooperation of the many county agents, farmers, technical assistants, secretaries and the representatives of the various firms and businesses who contributed time, land, machinery and materials and without whose support many of the results reported here would not have been possible