UMN Extension Nutrient Management Podcast

It's December and we're rounding out the year with an in-depth discussion on cover crops here on the Nutrient Management Podcast. What are panelists' observations regarding covers with lower seeding rates? What are some pros and cons relating to erosion or nutrient uptake? Does planting early at a lower seed rate vs. planting later with a higher seed rate result in the same outcome? What are some weed control characteristics of cover crops? What advice do our panelists have for farmers new to cover crops? What kinds of state and local resources are available for growers? All this and lots more on today's show so be sure to tune in.Guests:Anna Cates, Extension soil health specialist (St. Paul)Ryan Beutow, Minnesota NRCS State Agronomist (St. Paul)Eric Yu, Extension educator (Farmington)Additional Resources:UMN Cover Crops row cropsUMN Cover crops in vegetablesCover crop AcademyMN Agronomy Technical Note 33Single species cereal rye cover crop implementation requirementsCover Crop Termination GuidelinesMN NRCS Cover Crop Design ToolMidwest Cover Crop CouncilSARE Managing Cover Crops ProfitablyMN Field Office Technical Guide folder on cover crops--- 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.

Today on the Nutrient Management Podcast we're turning our attention to micronutrients. What does current research tell us about micronutrients - for corn specifically - that growers need to consider? Boron is another important micronutrient in Minnesota. What should farmers be aware of regarding boron? Is tissue sampling the answer to help predict where some of these micronutrients are needed? What are other important micronutrient takeaways? All this and much more on today's episode. Guests & Contact Info:Jeff Vetsch, U of M researcher (Waseca) - email: jvetsch@umn.eduDaniel Kaiser, Extension nutrient management specialist (St. Paul) - email: dekaiser@umn.eduCarl Rosen, Extension nutrient management specialist (St. Paul) - email: rosen006@umn.eduAdditional Resources:Micro- and secondary macronutrientsUnderstanding plant analysis for cropsZinc for crop productionAre you overspending on fertilizer?Is boron deficiency a problem for crops in Minnesota?---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.

On today's episode of the Advancing Nitrogen Smart podcast, Brad and Dan talk about variable rate application - and zones in particular. What's the overall point to variable rate N application? How might an initial starting N rate be determined? How do farmers' fields and equipment introduce their own variables, and how can these variables be monitored? How should farmers think about - and plot out - field zones? What's the difference between a yield map and a zone map, and should farmers rely on yield maps for zoning purposes? Do the best yielding spots always need the most nitrogen? All of this and much more on today's show.Guests:Brad Carlson, Extension educator (Mankato)Dan Kaiser, Extension nutrient management specialist (St. Paul)Additional resources:With high nitrogen fertilizer prices and low corn prices, can you decrease your nitrogen rate for 2026? www.cornnratecalc.org (Corn Nitrogen Rate Calculator)Is variable rate nitrogen based on yield maps a good idea?Variable rate nitrogen: What are we trying to accomplish?Brad Carlson's email address: bcarlson@umn.eduDan Kaiser's email address: dekaiser@umn.edu---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.

This month on the Nutrient Management Podcast, we talk about a recent increase in N rate recommendations for corn. Why have these suggested nitrogen rates for corn increased over time? How are regional differences across Minnesota factored into this increase? Why does the Maximum Return to Nitrogen (MRTN) method of N rate calculation bring economics into the mix? Why should growers focus on profit instead of yield? Won't a higher nitrogen rate make our SE Minnesota water issues worse? Our panelists answer these important questions - and many more - on today's show.Guests:Jeff Vetsch, U of M researcher (Waseca)Daniel Kaiser, Extension nutrient management specialist (St. Paul)Brad Carlson, Extension educator (Mankato)Additional Resources:www.cornnratecalc.org (N Rate Calculator)Updated corn nitrogen rates: What are we currently seeing for N fertilizer requirements in Minnesota?An introduction to MRTN: Efficiencies & economics in mind2025 fall fertilizer outlook: Management tips during economic uncertaintyWith high nitrogen fertilizer prices and low corn prices, can you decrease your nitrogen rate for 2026?---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.

Brad Carlson and Daniel Kaiser discuss the maximum return to nitrogen method (MRTN) for determining an optimal N rate on today's episode of Advancing Nitrogen Smart Podcast. What is the MRTN and why was it created? What are differences between an N investment model versus a maximum yield model? What should farmers keep in mind while using the MRTN? Where can Minnesota farmers, producers and ag professionals find the MRTN? All this and more on today's show.Guests:Brad Carlson, Extension educator (Mankato)Dan Kaiser, Extension nutrient management specialist (St. Paul)Additional resources:www.cornnratecalc.org (N rate calculator)Are you overspending on fertilizer?Nutrient ManagementUpdated corn nitrogen rates: What are we currently seeing for N fertilizer requirements in Minnesota?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.

Dan Kaiser and Brad Carlson continue their discussion on N-fixing biostimulant products in today's episode of the Advancing Nitrogen Smart Podcast. What's the most up-to-date working definition of a crop biostimulant? On which crops are N-fixing products typically used? What is NCERA103.org, and in what ways it it a useful resource for farmers and other agricultural professionals? What are some of the different categories of nitrogen-fixing biostimulants? How should farmers be thinking about biological soil fertility products in general? All this and more on today's show.Guests:Dan Kaiser, Extension nutrient management specialist (St. Paul)Brad Carlson, Extension educator (Mankato)Additional resources:NCERA103.orgNitrogen-fixing biologicals: What farmers should knowNitrogen-fixing biological products: New report summarizes research from across the corn beltNitrogen-fixing biological products: Four Midwest experts weigh in on industry claims, on-farm research tips, and more---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.

On this episode of the Nutrient Management Podcast, we talk all about fall manure application. What should be on a farmer's to-do list to prepare for fall application? What names need to be on an operation's emergency response plan, and what kind of PPE should farmers keep nearby? How much lead time does a lab need to return sample results? If a farmer plans to work with a commercial applicator, what can they do ahead of time to ensure a successful season? All of this, plus a farmer Q&A, on-farm research advice, an update on ManureDB and more on today's show.Guests:Melissa Wilson, Extension manure nutrient management specialist (St. Paul)Chryseis Modderman, Extension manure nutrient management specialist (Morris, MN)Nancy Bohl Bormann, researcher, manure and nutrient management (St. Paul)Eduardo Garay, on-farm research manager, manure management (St. Paul)Additional Resources:How to put together a manure management planUMN Manure (YouTube)ManureDBManure management: Agitation and pumpingFor on-farm research inquiries, contact Eduardo Garay at: garay043@umn.edu—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.

Today on the Advancing Nitrogen Smart Podcast we take a close-up look at bioreactors as an edge-of-field practice. How does this important tool work, and how does it help mitigate nitrate loss? What types of carbon sources have traditionally been used in a bioreactor, and what types of carbon could be used in the future? How are bioreactors incorporated in to a farmer's operation, and how are they maintained? How effective and efficient are bioreactors? What's on the horizon for the next generation of bioreactor technology? All this and more on today's episode.Guests:Brad Carlson, Extension educator (Mankato)Jeff Strock, Extension soil scientist (Lamberton)Additional Resources:Nitrogen and phosphorus removal from agricultural drainage water by a modular bioreactorBioreactor research3 takeaways from the Conservation Drainage Network’s annual meetingEdge of field N and P reduction strategies: What to know about conservation drainage practicesNitrogen Smart---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.

It’s that time of year again; time for the Fall Fertilizer Outlook on the Nutrient Management Podcast. Given the overall economics of crop production right now, how should farmers be approaching their fertilizer decisions this fall? What are some regional differences with respect to fertilizer management this year? There has been a renewed focus on the issue of water quality in Minnesota - how should this affect farmers’ decision-making? How many fertilizer decisions can be pushed off until spring? All of this and more on today’s show.Guests:Brad Carlson, Extension educator (Mankato)Lindsay Pease, Extension nutrient and water management specialist (Crookston)Jeff Vetsch, Research supervisor (Waseca)Daniel Kaiser, Extension nutrient management specialist (St. Paul)Additional Resources:Are you overspending on fertilizer?Making sense of Minnesota's corn fertilizer guidelines: Frequently asked questions, and answersNo P, no problem? Skipping phosphorus fertilizer application may make agronomic, economic senseSmart Nitrogen Management webinar (YouTube)—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.

On today's Advancing Nitrogen Smart Podcast, Brad Carlson and Melissa Wilson explain aspects of Minnesota laws and regulations that manure applicators should be aware of. What are the requirements for manure testing, and how often should you do it? What are some general restrictions for manure application in Minnesota? How do buffers and setbacks help you? What kinds of documents should be incorporated into a manure management plan? What contingencies should be put into place in the case of an emergency? All this and more on today's show.Guests:Brad Carlson, Extension educator (Mankato)Melissa Wilson, Extension manure nutrient management specialist (St. Paul)Additional resources:Land Application of manure: Minimum requirementsManure managementManure sampling and nutrient analysisManure sampling and testing: Variability, guidelines & safety for your operationManureDBFor 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 is the topic today on the Advancing Nitrogen Smart podcast. Soil conditions and chemistry are factors that make nitrogen prone to loss, but how does the N loss process actually happen? What's left over in the field after that process occurs, and where does the lost nitrogen go? What do denitrification, leaching and volatilization mean? How can the 4 Rs (right rate, right source, right placement, right timing) help growers minimize risk? How do nitrification inhibitors, microbes, and soil types fit in to the picture? All that and more in today's conversation.Guests:Brad Carlson, Extension educator (Mankato)Dan Kaiser, Extension nutrient management specialist (St. Paul)Additional resources:Wait, consider your options before applying nitrogen this fallVideo: What to know about nitrogen inhibitors and other enhanced efficiency fertilizersField Notes talks about what to expect after heavy June rainsVideo: Fall vs. spring urea in MinnesotaNitrogen Smart---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.

On this episode of Advancing Nitrogen Smart, Brad and Dan take some of the mystery out of variable rate N. What are we trying to accomplish when we use a variable rate management practice? What kinds of field conditions might benefit from VRN, and which conditions should be avoided with VRN? How might the other 3 R's (Timing, Source & Placement) play a part in rate decision making? All that and more on today's show. Guests:Brad Carlson, Extension educator (Mankato)Dan Kaiser, Extension nutrient management specialist (St. Paul)Additional resources:Is variable rate nitrogen based on yield maps a good idea?Variable rate nitrogen: What farmers should knowMaking sense of Minnesota’s corn fertilizer guidelines: Frequently asked questions and answersFertilizing corn in MinnesotaNitrogen Smart---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 Nutrient Management Podcast we discuss nutrient management for irrigated crops in Minnesota. How many irrigated acres are there in Minnesota? What are some of the benefits and risks of irrigation? In what ways can risks be mitigated - through timing, cover crop adoption and / or other general soil health practices? What should growers know about the latest irrigation research in Minnesota? If a farmer is considering adopting irrigation practices, what should they focus on first? This and much, much more on today's episode.Guests:Daniel Kaiser, Extension nutrient management specialist (St. Paul)Carl Rosen, Extension irrigation specialist, Dept. of Soil, Water, and Climate (St. Paul)Vasu Sharma, Extension irrigation specialist, Dept. of Soil, Water, and Climate (St. Paul)Additional Resources:IrrigationResearch shows precision irrigation technology can improve irrigation water productivity in cornCould adding irrigation to Minnesota corn fields help reduce nitrate losses to groundwater?How do wet and dry years affect corn yield and nitrate leaching under different irrigation and nitrogen management strategies?Effect of variable rate irrigation and nitrogen fertilizer rates on crop productivity and water quality---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 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 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 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 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 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 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 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 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.

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 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 Advancing Nitrogen Smart we’re talking about the nitrogen cycle and managing soil fertility. What does 'the nitrogen cycle' mean, and how does it affect your management strategy? In what ways do temperature and moisture slow down or speed up nitrogen's window of usability? What are nitrification, denitrification, volatilization, mineralization and immobilization? How well do inhibitors work, when should they be applied? How does organic matter affect the nitrogen cycle? All these answers and more on today's episode.GuestsBrad Carlson, Extension educatorDan Kaiser, Extension nutrient management specialistAdditional ResourcesUnderstanding nitrogen in soilsNitrogen smart fundamentalsThe nitrogen cycleThe nitrogen cycle (YouTube)---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.

Cation exchange capacity and cation balancing are the topics of the day in this episode of the Nutrient Management Podcast. What are the definitions of cation exchange capacity and cation balancing? How is CEC measured, and are those estimates reliable? What does the research say about CEC and CB and their role in a nutrient management strategy? What should farmers remember about cation exchange capacity and cation balancing for their own operations?Guests:Fabian Fernandez, Extension nutrient management specialist (St. Paul)Daniel Kaiser, Extension nutrient management specialist (St. Paul)Carl Rosen, Extension nutrient management specialist (St. Paul)Additional Resources:Timing of K application for corn and soybean productionChloride and soybean: What to know about potash fertilizer managementImpact of cation exchange on corn K guidelinesFour soil test myths that farmers should knowCorn planting and nitrogen management: 5 things to considerFall K fertilizer decisions: How should corn growers prioritize applying potassium?Potassium management: Maps showing soil clay type could help Minnesota farmers---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.