Wisconsin Certified Soil Testing Laboratories

Wisconsin Certified Soil Testing Laboratories

John Peters, Director, UW Soil Testing Laboratories

SGS Mowers Soil Testing Plus of Toulon, IL has withdrawn from the Wisconsin certification program.  Therefore, as of March 2012, there are now six laboratories certified by the Wisconsin Department of Agriculture, Trade and Consumer Protection for soil testing in Wisconsin.  To become certified, laboratories must meet certain analytical performance standards and are also required to;

  • Use analytical procedures outlined in the most recent edition of Wisconsin Soil Testing and Plant Analysis Procedures, Department of Soil Science, UW-Madison.
  • Provide soil test recommendations for lime and nutrients as prescribed in the most recent edition of Soil Test Recommendations for Field, Vegetable, and Fruit Crops (A2809), Department of Soil Science, UW-Madison.

The names and contact information for the certified laboratories are listed below.

If you have any questions about this program, please contact Sue Porter at WDATCP (608-224-4605) or John Peters (715-387-2523).

A & L Great Lakes Laboratories, Inc.
3505 Conestoga Drive
Fort Wayne, IN  46808
260-483-4759

AgSource Cooperative Services
106 N. Cecil Street
Bonduel, WI  54107
715-758-2178

Dairyland Laboratories
217 E. Main Street
Arcadia, WI  54612
608-323-2123

Rock River Laboratory
710 Commerce Drive
P. O. Box 169
Watertown, WI  53094
920-261-0446

UW Soil & Plant Analysis Lab
8452 Mineral Point Road
Verona, WI  53593
608-262-4364

UW Soil & Forage Analysis Lab
2611 Yellowstone Drive
Marshfield, WI  54449
715-387-2523

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