The University of Wisconsin Soil & Plant Analysis Lab, located in Madison, WI, offers a wide range of diagnostic services. The lab provides testing services and technical support for University researchers and the general public. As a branch of the UW Department of Soil Science, the lab's efforts are directed towards quantifying soil fertility as it relates to plant growth for both agricultural interests and commercial and home horticulture.

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Select the correct Sample Submission Form for your samples.

See the Services and Fees pamphlet for pricing information.

View our Lab Procedures.