These tests are intended for land being used to grow agronomic and horticultural crops. Reports for soil samples submitted with the Farm/Field and Commercial Horticulture Soil Analysis Request Sheet will include crop-specific fertilizer recommendations.
Here is a video showing how to collect samples:
How to Submit Samples for Analysis
- Follow instructions in the video above for collecting field samples.
- Download, print and fill out the Farm/Field and Commercial Horticulture Soil Analysis Request Sheet (.pdf). Include your email address if you prefer to receive the results via email.
- Make sure each sample contains about 2-3 cups of soil.
- Place each sample in a secure container such as a clean tupperware or sealable plastic bag. Label the container with a sample name/number that matches what you put on the request sheet.
- Enclose a check payable to the University of Minnesota for all services requested. Do NOT send cash - we cannot be responsible for cash sent through the mail. You may also pay with a credit card. Scroll down for prices.
- Send the soil sample(s), payment, and Farm/Field request sheet to:
Soil Testing Laboratory, University of Minnesota
135 Crops Research Building
1902 Dudley Ave.
St. Paul, MN 55108
You may also drop off samples in person. See Contact Us for directions. Free parking for sample drop-off is available along the curb on Dudley Avenue. There is a drop-box on the table outside the building, or you may come in and use the table outside room 135.
Note: While our tests are optimized for the upper Midwest, we accept soil from the anywhere in the continental US (including AK) that is not highlighted or marked on this map.
Tests Offered
- Regular Series (phosphorus, potassium, pH (lime requirement if needed), percent organic matter and estimated texture category) - $19/sample
- Micronutrient series (zinc, copper, iron, manganese) - $14/sample
- Nitrate Nitrogen - $8/sample
- Calcium and Magnesium - $8/sample
- Sulfur - $8/sample
- Boron - $8/sample
- Soluble Salts - $8/sample
- Lead - $20/sample
- Nutrient Management Phosphorus - $8/sample
Fertilizer recommendations for optimum yield are based on laboratory results, soil characteristics, past crop history, and crop nutrient requirements.
We have the ability to analyze Basal Stalk Nitrate for corn through the Research Analytical Laboratory (RAL). Learn more about Basal Stalk Nitrate testing.
Prices effective January 2023. Note that prices are subject to change.
Due to limited storage space, soil samples are held for three months after reports are issued. After that, samples are discarded.