This month's episode of the Nutrient Management Podcast is all about sulfur. Fertilizer guidelines go through changes periodically, but are there any upcoming changes to the sulfur fertilizer guidelines specifically? What does current research tell us about managing sulfur for Minnesota crops? Were there any surprising results? Should growers proactively add sulfur to crops out of caution, or is that practice unnecessary? What are some final takeaways that our panelists want Minnesota farmers to know about?

Guests:

• Jeff Coulter, Extension corn agronomist (St. Paul)
• Jeff Vetsch, U of M researcher (Waseca)
• Seth Naeve, Extension soybean agronomist (St. Paul)
• Daniel Kaiser, Extension nutrient management specialist (St. Paul)

Additional Resources:

• Sulfur for Minnesota soils
• Is it worth applying sulfur to your soybean crop?
• Sulfur fertilizer application: Does S carry over from one year to the next?
• Video: What source of sulfur is right for you?
• Fertilizing Corn in Minnesota

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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. 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.

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.

This week on Advancing Nitrogen Smart Melissa Wilson and Brad Carlson talk about manure sampling and testing. What are some sampling guidelines to be aware of in Minnesota? How variable is nitrogen in one type of manure, and then from type to type? How could changes to a farmer's overall operation affect manure nutrient content? How should manure samples be stored? Safety is huge - what do farmers need to know about staying safe when working with manure? Oh, and how do you prevent sample jars from exploding in the mail? This, and lots of manure info on today's show.

Guests:

• Brad Carlson, Extension educator (Mankato)
• Melissa Wilson, Extension manure nutrient management specialist (St. Paul)

Additional resources:

• 2025 Certified Manure Testing Laboratories
• Nitrogen availability of different manure types: What we know and what we are researching
• Introducing ManureDB: A new way to view manure variability and trends
• Manure management
• Manure Land Application: Minimum Requirements

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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.

Today on the Advancing Nitrogen Smart podcast series, Brad and Dan tell us how the Maximum Return to Nitrogen (MRTN) approach to N rate recommendations is calculated. What does the MRTN actually measure for farmers? What's the reason the MRTN recommendations were created? What kind of / how many rate trials are used to build the dataset? Does the MRTN rate recommendation approach work well in all Minnesota regions? Brad and Dan cover this and more on today's show.

Guests:

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

Additional resources:

• Corn Rate Calculator
• What to know about the Maximum Return to Nitrogen (MRTN) approach to corn N rate guidelines
• The history of N rate recommendations in Minnesota: What farmers should know
• 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.