Welcome to the Soil Testing Laboratory


Sample Drop Off Zone
carrots and soil
pumpkins with acorns and leaves
stubble field after harvest

The Soil Testing Lab will be closed on Wednesday, June 19, 2024 in observance of Juneteenth.


Are you curious about the plant nutrients in your soil for growing veggies, flowers, trees, grass? You have come to the right place!  Send us your soil samples and we can give you a good idea of the NPK ratio to add to your soil.

We have new prices beginning January 1, 2024.  Proceed to the appropriate page, below, to see the new prices. You can collect and send samples to us any time of the year!

Proceed to the relevant pages to see how to collect and submit samples:

STRAL in the News and public interest

The University of Minnesota Soil Testing Laboratory is part of the Minnesota Agricultural Experiment Station. We provide high quality testing services to the public, universities, private companies, as well as state and federal agencies.

Soil Testing Procedures Graphic

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