Today Brad and Dan explore the background and rationale behind nitrogen rate recommendations in Minnesota. How have Minnesota's N rate recommendations evolved over time? What data does the MRTN approach take into account? How are these N rates organized?

Guests:

• Brad Carlson, Extension educator (Mankato)
• Daniel Kaiser, Extension nutrient management specialist (St. Paul)

Additional resources:

• What to know about the MRTN approach
• Are you overspending on fertilizer?
• Corn Nitrogen Rate Calculator
• Corn fertilizer guidelines - U of M

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Click here to listen to all Advancing Nitrogen Smart podcast episodes.

For the latest nutrient management information, subscribe to the Nutrient Management Podcast. And don't forget to subscribe to the Minnesota Crop News daily or weekly email newsletter, subscribe to our YouTube channel, like UMN Extension Nutrient Management on Facebook, follow us on X (formerly twitter), and visit our website.

If you have questions or comments, please email us at nutmgmt@umn.edu.

Advancing Nitrogen Smart is proud to be supported by the farm families of Minnesota and their corn check-off investment through Minnesota Corn.

Nitrogen loss: Lessons learned from the 2024 growing season is the big topic on today's episode of the Nutrient Management Podcast. What N application practices looked particularly bad in 2024? Some farmers are saying they are no longer going to apply fall N based on how 2024 played out. Is this warranted, or is it an overreaction? Is there any data back from split-application trials, or evaluations of rescue treatments? What did it tell us? In hindsight, what would have been ideal practices to have used this past year? Moving forward, what can we take away from the 2024 growing season with respect to how to manage fertilizer?

Guests:

• Fabian Fernandez, Extension nutrient management specialist (St. Paul)
• Jeff Strock, Extension soil scientist (Lamberton)
• Jeff Vetsch, U of M researcher (Waseca)
• Lindsay Pease, Extension nutrient and water management specialist (Crookston)
• Brad Carlson, Extension educator (Mankato)

Additional Resources:

• Supplemental nitrogen worksheet for corn
• Minnesota corn fertilizer guidelines
• Video: Split-applying nitrogen for corn: Three keys for successful sidedress applications
• Corn nitrogen rate calculator
• Advancing Nitrogen Smart podcast series
• Nitrogen Smart educational program

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Click here to listen to all Nutrient Management Podcast episodes.

For the latest nutrient management information, subscribe to the Nutrient Management Podcast wherever you listen and never miss an episode. And don't forget to subscribe to the Minnesota Crop News daily or weekly email newsletter, and to our YouTube channel. Be sure to like UMN Extension Nutrient Management on Facebook, follow us on X (formerly Twitter), and of course visit our website.

If you have questions or comments, please email us at nutmgmt@umn.edu.

Support for the Nutrient Management Podcast is provided by Minnesota's fertilizer tonnage fee through the Agricultural Fertilizer Research & Education Council (AFREC). Learn more at MNsoilfertility.com.

In episode 12 of the Advancing Nitrogen Smart series Brad and Dan talk in detail about nitrification inhibitors. What are the two types of inhibitors, and what are best practices for incorporation? How do soil type, temperature, and precipitation factor into farmer decision-making? How much time does a nitrification inhibitor buy you? In what circumstances should inhibitors be avoided altogether? These answers and many, many more on today's episode.

Guests:

• Brad Carlson, Extension educator (Mankato)
• Daniel Kaiser, Extension nutrient management specialist (St. Paul)

Additional resources:

• Nitrification inhibitors and manure: Do they work?
• Video: What to know about nitrogen inhibitors and other enhanced efficiency fertilizers
• A difference in degrees: Fall application efficiency at 50 Fahrenheit
• Nitrogen Smart

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Click here to listen to all Advancing Nitrogen Smart podcast episodes.

For the latest nutrient management information, subscribe to the Nutrient Management Podcast. And don't forget to subscribe to the Minnesota Crop News daily or weekly email newsletter, subscribe to our YouTube channel, like UMN Extension Nutrient Management on Facebook, follow us on X (formerly twitter), and visit our website.

If you have questions or comments, please email us at nutmgmt@umn.edu.

Advancing Nitrogen Smart is proud to be supported by the farm families of Minnesota and their corn check-off investment through Minnesota Corn.