Minnesota Extension Nutrient Management Podcast
Persistent link for this collectionhttps://hdl.handle.net/11299/218780
The Nutrient Management Podcast provides Minnesota farmers and agriculture professionals with the latest research and recommendations from University of Minnesota Extension soil fertility specialists and educators.
The podcast is available at https://blog-crop-news.extension.umn.edu/search/label/NM%20podcast.
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Item Predicting nitrogen rates: Factors and resources for Minnesota farmers(2024-12-04)After spending last episode talking about the background and history of nitrogen rate recommendations in Minnesota, today on episode 14 we’re talking about what to keep in mind as you begin predicting your nitrogen rate needs. How do yield, and nitrogen use efficiency (NUE) factor into decision making? Are there any N rate databases available to Minnesota growers? What are the pros and cons of a variable rate strategy, or cover crops for example? Brad and Dan talk about that and much more on today's episode.Item Soybean nutrient management: IDC concerns, a research wrap-up, and looking ahead to 2025(2024-12-19)Today on the podcast we focus on soybean nutrient management. Our four soybean and nutrient management panelists from across Minnesota and North Dakota explain their research trials, and discuss some preliminary results in the region. Also, what should growers keep in mind as we transition into 2025? What are the panelists' concerns about IDC? That and much more on our last episode of 2024.Item Nitrogen conservation and water quality, Part 2: Precision conservation, and future efficiencies(2025-01-22)We continue our conversation about nitrogen conservation and water quality on Advancing Nitrogen Smart. Today in Part 2, Brad Carlson and Jeff Vetsch continue discussing new technologies that may help address nitrogen loss, such as passive sensors and crop modeling systems. How might future tools such as AI play a part? How is precision testing affected by timing? In what ways can hybrid engineering, and further efficiencies in inhibitors be leveraged? This and much more on today's episode.Item Nitrogen conservation and water quality, Part 1: Tech, edge-of-field, & proactive management solutions(2025-01-22)Nitrogen conservation and water quality are the subject of today's Advancing Nitrogen Smart episode. There's lots to cover so we're splitting the episode up into two parts. Today in Part 1, Brad Carlson and Jeff Vetsch unpack different conservation solutions, and what might be achieved from their adoption. In what situations might buffer strips, cover crops, and corn genetics play their part? What about using technology-such as active and passive sensors? How do any reactive mitigation costs compare with proactive nutrient management planning? This and much more on today's episode.Item 25 Years of nutrient management: How have practices changed and evolved?(2025-01-23)Here we are in 2025. Today on the Nutrient Management Podcast, our panelists talk about how the practice of nutrient management has changed over the last quarter century. How have precipitation levels - and perceptions about precipitation - changed? What came before the current Maximum Return To Nitrogen management model, and what did the change address? How has U of M research contributed to sulfur nutrient management understanding? How has awareness of ground and surface water quality evolved? Finally, how has tech changed (or not changed) the practice of fertilizer management over the last quarter century? This and much more on today's show.Item Nitrogen-fixing biologicals: What farmers should know(2025-02-19)Today we’re talking all about nitrogen-fixing biologicals. What's the best definition of a biological or biostimulant? Are they fertilizers, pesticides - or neither? In what ways do they interact with nitrogen in the field? Where and how are biological products tested? Which environmental factors might impact biologicals? How should they be properly transported and stored? How can farmers assess whether biostimulants might be right for their operation? All this and more on today's episode.Item Variable rate nitrogen: What farmers should know(2025-02-06)Today we’re talking all about variable rate nitrogen. What underlying information do we need to make decisions about VRN? What areas in the field might be prone to N loss? Should you only add extra N to high-yielding areas, or could a low-yielding zone also show positive responses? What effect could your overall management strategy have on a variable rate response? All this and more on today's episode.Item Fall fertilizer outlook for 2024: Current conditions, soil testing, and farmer finances(2024-09-09) Kaiser, Daniel; Carlson, Brad; Vetsch, Jeff; Fernandez, FabianThis episode of the Nutrient Management Podcast is our annual fall fertilizer outlook. After such a challenging growing season throughout most of the state, how do things look headed toward harvest? Since most of the state went from being too dry last year to too wet this year, how should this affect the approach to fertility management? What role will fertility play in sound financial management this fall? What advice do our panelists give growers as we head into the fall? Additional resources: Are you overspending on fertilizer? (https://www.blogger.com/blog/post/edit/5575265938373902114/4992314003319321745); 2024 Certified Soil Testing Laboratories (https://www.blogger.com/blog/post/edit/5575265938373902114/4992314003319321745); Nitrogen Fertilizer BMPs for Agricultural Lands (https://www.blogger.com/blog/post/edit/5575265938373902114/4992314003319321745)Item Your optimal N rate: Understanding its impact on yield, water quality, and the bottom line(2024-09-18) Carlson, Brad; Kaiser, DanielIn this episode of the Advancing Nitrogen Smart series, we discuss probably the most important topic for many farmers - rate. What makes both over-application and under-application of nitrogen counter-productive in terms of yield? How does a Maximum Return To Nitrogen (MRTN) rate approach differ from a yield-based approach? What are long-term environmental consequences of over-application, and how does this relate to a farmer's operation? What are some ways to address in-field variability when determining rate? Additional resources: Maximum Return To Nitrogen (MRTN) rate calculator (https://www.blogger.com/blog/post/edit/5575265938373902114/8925323039274216026); Are you overspending on fertilizer? (https://www.blogger.com/blog/post/edit/5575265938373902114/8925323039274216026); Best practices for nitrogen management (https://www.blogger.com/blog/post/edit/5575265938373902114/8925323039274216026); Nitrogen Smart - online course (https://www.blogger.com/blog/post/edit/5575265938373902114/8925323039274216026)Item Fall manure application: Optimal strategies for Minnesota farmers(2024-10-02) Carlson, Brad; Wilson, MelissaIn this episode of Advancing Nitrogen Smart, Melissa Wilson, Extension manure management specialist joins Brad Carlson to discuss fall manure application. What are the most important dos and don'ts of fall application? How much time can nitrification inhibitors buy you after application? What's the optimum soil temperature for application, and what if you can't wait? What are characteristics of manure from different sources, and how can they work to your advantage? Additional resources: Nitrogen availability of different manure types: What we know and what we are researching (https://www.blogger.com/blog/post/edit/5575265938373902114/4809339649537042563); Tips for fall manure application and how to avoid nutrient loss (https://www.blogger.com/blog/post/edit/5575265938373902114/4809339649537042563); Nitrification inhibitors and manure: Do they work? (https://www.blogger.com/blog/post/edit/5575265938373902114/4809339649537042563); Introducing ManureDB: A new way to view manure variability and trends (https://www.blogger.com/blog/post/edit/5575265938373902114/4809339649537042563); Everything manure: Midwest experts answer common questions heading into fall (https://www.blogger.com/blog/post/edit/5575265938373902114/4809339649537042563)Item Liming and pH: Timing, economics, materials, and more(2024-10-15) Jones, John; Vetsch, Jeff; Kaiser, Daniel; Rosen, CarlIn this episode of the Nutrient Management Podcast, our panelists discuss liming in detail. What kind of variation is there in liming recommendations? Since pH changes aren’t instant, when is the best time to apply limestone? Is lime application economically justified, and in what circumstances? What should growers know about selecting liming materials? What other bits of advice do our panelists recommend? Additional resources Liming (https://www.blogger.com/blog/post/edit/5575265938373902114/4493099763456159434); Lime needs in Minnesota (https://www.blogger.com/blog/post/edit/5575265938373902114/4493099763456159434); Fertilizer Recommendation Support Tool (FRST) (https://www.blogger.com/blog/post/edit/5575265938373902114/4493099763456159434)
Item A difference in degrees: Fall application efficiency at 50 Fahrenheit(2024-10-16) Carlson, Brad; Kaiser, DanielToday we’re talking all about fall application. What's the first thing farmers should know about applying in fall? What’s the difference in N efficiency at 50 the degree threshold versus even a 55 degree threshold, and then when have those degree dates happened historically? Additional resources: Minnesota Department of Agriculture Soil Temperature Network (https://www.blogger.com/blog/post/edit/5575265938373902114/1856226909908303672); Southern Research and Outreach Center (Waseca, MN) temperature chart (https://www.blogger.com/blog/post/edit/5575265938373902114/1856226909908303672); Advanced Nitrogen Smart: A deep dive into the 4 Rs (https://www.blogger.com/blog/post/edit/5575265938373902114/1856226909908303672)Item Nitrogen loss: Lessons learned from the 2024 growing season(2024-11-07) Fernandez, Fabian; Strock, Jeff; Vetsch, Jeff; Pease, Lindsay; Carlson, BradNitrogen 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? Additional Resources: Supplemental nitrogen worksheet for corn (https://apps.extension.umn.edu/agriculture/nutrient-management/crop-calculators/corn-calculator-popup.html); Minnesota corn fertilizer guidelines (https://extension.umn.edu/crop-specific-needs/fertilizing-corn-minnesota); Video - Split-applying nitrogen for corn: Three keys for successful sidedress applications (https://blog-crop-news.extension.umn.edu/2023/03/split-applying-nitrogen-for-corn-three.html); Corn nitrogen rate calculator (https://www.cornnratecalc.org/)Item Nitrification inhibitors in detail: Important information to help delay N loss(2024-10-30) Carlson, Brad; Kaiser, DanielIn 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. Additional resources:Nitrification inhibitors and manure: Do they work? (https://www.blogger.com/blog/post/edit/5575265938373902114/7120904762940405861); Video - What to know about nitrogen inhibitors and other enhanced efficiency fertilizers (https://www.blogger.com/blog/post/edit/5575265938373902114/7120904762940405861); A difference in degrees: Fall application efficiency at 50 Fahrenheit (https://www.blogger.com/blog/post/edit/5575265938373902114/7120904762940405861); Nitrogen Smart (https://www.blogger.com/blog/post/edit/5575265938373902114/7120904762940405861)Item The history of N rate recommendations in Minnesota: What farmers should know(2024-11-13) Carlson, Brad; Kaiser, DanielToday 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? Additional resources: What to know about the MRTN approach (https://www.blogger.com/blog/post/edit/5575265938373902114/5830047800275745896); Are you overspending on fertilizer? (https://blog-crop-news.extension.umn.edu/2024/04/are-you-overspending-on-fertilizer.html); Corn Nitrogen Rate Calculator (https://www.cornnratecalc.org/); Corn fertilizer guidelines - U of M (https://extension.umn.edu/crop-specific-needs/fertilizing-corn-minnesota)Item Phosphorus fertilizer guidelines: Four Midwest experts talk profit, yield, soil tests & more(2024-08-21) Kaiser, Daniel; Mallarino, Antonio P.; Jones, John; RUiz Diaz, DorivarIn this episode of the Nutrient Management Podcast, we’re talking about phosphorus fertilizer guidelines throughout Minnesota and the Midwest. What are current state guidelines throughout the region, and are they satisfactory? Should farmers forgo taking a soil test to measure their P levels, or should the test be prioritized? Might state phosphorus guidelines need to be revised, and if so, in what ways? What guidance or advice pertaining to phosphor Additional resources: Phosphorus and potassium (https://www.blogger.com/blog/post/edit/5575265938373902114/8590023248458966358); Understanding phosphorus fertilizer (https://www.blogger.com/blog/post/edit/5575265938373902114/8590023248458966358); What is the best soil test option for phosphorus? (https://www.blogger.com/blog/post/edit/5575265938373902114/8590023248458966358); Fall vs. Spring: When to apply phosphorus? (https://www.blogger.com/blog/post/edit/5575265938373902114/8590023248458966358)Item Nitrogen pools: Our experts talk timing, testing and uptake(2024-08-27) Carlson, Brad; Kaiser, DanielIn this episode of the Advancing Nitrogen Smart series, our two experts discuss nitrogen pools. What are nitrogen pools, and where do we find them? How is N actually consumed by the plant, and what forms of N will plants take up more readily? What are some potential signs of N deficiency in the plant? How do nitrogen pools relate back to the 4R's, like timing? Additional resources: Will soil microbes deliver nitrogen to my crop? Yes, but not in a predictable way (https://www.blogger.com/blog/post/edit/5575265938373902114/6415481660962680491); Nitrogen (https://www.blogger.com/blog/post/edit/5575265938373902114/6415481660962680491); Understanding nitrogen in soils ( https://www.blogger.com/blog/post/edit/5575265938373902114/6415481660962680491)Item Timing nitrogen efficiently: How to maximize yield while mitigating risk(2024-09-04) Carlson, Brad; Kaiser, DanielIn the 8th episode of the Advancing Nitrogen Smart series, we’re taking about timing. What makes understanding timing crucial to using nitrogen efficiently? Should growers apply in fall, and if so, what source should be avoided? Between which growth stages does corn take up the bulk of a field's N? What do weather extremes teach us about optimal timing? Do some timing decisions negatively affect farmers' finances? In what ways? Additional resources: Understanding nitrogen in soils (https://www.blogger.com/blog/post/edit/5575265938373902114/2898213308003225359); Nitrogen Fertilizer BMPs for Agricultural Lands (https://www.blogger.com/blog/post/edit/5575265938373902114/2898213308003225359); Does fall urea application reduce sugarbeet stand loss? (https://www.blogger.com/blog/post/edit/5575265938373902114/2898213308003225359)Item Phosphorus fertilizer guidelines: Four Midwest experts talk profit, yield, soil tests & more(2024-08-21) Kaiser, Daniel; Mallarino, Antonio P.; Jones, John; Ruiz Diaz, DorivarIn this episode of the Nutrient Management Podcast, we're talking about phosphorus fertilizer guidelines throughout Minnesota and the Midwest. What are current state guidelines throughout the region, and are they satisfactory? Should farmers forgo taking a soil test to measure their P levels, or should the test be prioritized? Might state phosphorus guidelines need to be revised, and if so, in what ways? What guidance or advice pertaining to phosphorus guidelines would our panelists tell growers?Item Nitrogen transformation up close: Key details for efficient fertilizer management(2024-08-24) Carlson, Brad; Kaiser, DanielIn this 6th episode of the Advancing Nitrogen Smart series, we're taking an up-close look at the nitrogen transformation process. We'll talk more about temperature conditions, rainfall versus drainage, and what makes knowing these details so valuable to Minnesota farmers and producers, as well was to growers around the world.