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University of Minnesota Extension
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Advanced Nitrogen Smart: Biologicals and nitrogen management

Biological products used in nitrogen management is a rapidly changing industry. Learn about the range of biologicals being marketed, focus on free-living (asymbiotic) nitrogen-fixers and how they fit into nitrogen management, and explore what the research says. 

Learn more about 

  • How free-living and symbiotic nitrogen-fixers differ
  • Why getting consistent results with these products is challenging
  • How to test products in your own field 

It is strongly recommended that you complete both the Fundamentals course and A deep dive into the 4Rs before taking this course.

Cost

Free

Thanks to generous support from the Minnesota Corn Growers Association.

Registration

This is a self-paced course. You may register at any point and complete the course before the end of the following calendar year. 

If you need to leave the course before you finish, you may come back anytime. Your progress is automatically saved and you should return where you left off.

Accommodations

University of Minnesota Extension is committed to providing equal opportunity for participation in all programs, services and activities. To request accommodations for persons with disabilities, reach out to the event contact two weeks before the start of the event. Requests received after this date will be honored whenever possible.

Language

This offering is delivered in English. Interpreter services may be available with an advance request.

Online enrollment instructions

  1. When you click on the "Register" button, you will go to the enrollment page. Select the "Reducing nitrate to water" section and then "Add to cart." Proceed to "Checkout."
  2. After you have clicked "Checkout," you will either log in or create a new University of Minnesota guest account to access the course.
    • Note that your email address will be used as your UMN "internet ID" for this course. Please also note that University passwords must be 16 characters long. We recommend using a phrase you can remember.
  3. After creating your course login information, you will be directed back to the enrollment checkout process. Fill in only the required information as indicated by an asterisk (*) and "Continue checkout."
  4. You're now enrolled in the course! You will receive a confirmation email with a link to access the course.

Go to the course page

You may be interested in other online Advanced Nitrogen Smart  courses or attending one in-person. Visit the course page for more information.

Course page

Upcoming events

© 2026 Regents of the University of Minnesota. All rights reserved. The University of Minnesota is an equal opportunity educator and employer. This work is supported by the U.S. Department of Agriculture’s National Institute of Food and Agriculture.