UMN Extension Nutrient Management Podcast

• Sulfur management: In-season, source, carryover, soybean & more

  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 soilsIs 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—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 [email protected] 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.

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• Manure sampling and testing: Variability, guidelines & safety for your operation

  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 LaboratoriesNitrogen availability of different manure types: What we know and what we are researchingIntroducing ManureDB: A new way to view manure variability and trendsManure managementManure Land Application: Minimum Requirements---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 [email protected] Nitrogen Smart is proud to be supported by the farm families of Minnesota and their corn check-off investment through Minnesota Corn.

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• More Maximum Return to Nitrogen (MRTN): How is this N rec calculated?

  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 CalculatorWhat to know about the Maximum Return to Nitrogen (MRTN) approach to corn N rate guidelinesThe history of N rate recommendations in Minnesota: What farmers should knowNitrogen Smart---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 [email protected] Nitrogen Smart is proud to be supported by the farm families of Minnesota and their corn check-off investment through Minnesota Corn.

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• Conducting on-farm research: Four Midwest experts weigh in on design tips, planning and more

  Today on the Nutrient Management Podcast we discuss on-farm research. On-farm research has been here for decades - so what's new about it? What are management practices that might be easier to evaluate and which might be more difficult? What are the design criteria that farmers need to have in place in order to be successful? What kinds of problems have the panelists encountered while conducting on-farm research, and how might those problems have been avoided? How can farmers participate in University of Minnesota on-farm research projects, and how might it benefit them? All of this and lots more on today's show.Guests:Brad Carlson, Extension educator (Mankato)Daniel Kaiser, Extension nutrient management specialist (St. Paul)Fabian Fernandez, Extension nutrient management specialist (St. Paul)Matt Pfarr, Extension educator (Mankato)Additional Resources:On-farm researchHow to do research on your farmOn-farm research (YouTube)Nutrient ManagementClick 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 [email protected] 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.

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• Accounting for soil and weather conditions: Methods and tools to help fine-tune your N

  On this episode of Advancing Nitrogen Smart we discuss methods and tools to account for soil and weather conditions as you execute your nitrogen management strategy. Which tissue and nitrate testing options are the most beneficial, and when should you test? How does understanding the nitrogen cycle help you interpret these results? How do drought and /or saturated conditions affect available nitrogen? What can be reasonably achieved with rescue treatments? Why is it important to end your season with the right amount of residual nitrogen in the field? Brad and Dan discuss this - and much more - on today's show.Guests:Brad Carlson, Extension educator (Mankato)Dan Kaiser, Extension nutrient management specialist (St. Paul)Additional resources:Corn supplemental N rate calculatorSoil Testing Laboratory: Farm / Field and Commercial Horticulture CropsResearch Analytical Laboratory - tissue testingThe nitrogen cycle - YouTube videoWhy understanding the nitrogen cycle is key to managing soil fertility---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 [email protected] Nitrogen Smart is proud to be supported by the farm families of Minnesota and their corn check-off investment through Minnesota Corn.

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