Farm/Field and Commercial Horticulture Crops

Fields from above.

These tests are intended for farm fields or fields being used to grow commercial horticultural crops. The 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

  1. Follow the instructions for collecting field samples. 
  2. Make sure the sample contains about 2-3 cups of soil.
  3. Place sample(s) in a tightly sealed container or bag (like a clean, disposable food container or bag). Label the container or bag with a sample name/number that matches what you put on the request sheet.
  4. Download, print and fill out the Farm/Field and Commercial Horticulture Soil Analysis Request Sheet (.pdf). Add your email address if you want to receive the results via email.
  5. 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.
  6. 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

    Alternatively, you may  drop off your samples at the above address.  See Contact Us for directions.

Tests Offered

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 kept for three months, then discarded.