Podcast Extra: Why Corn Is Dying Early with John Kempf & Brody Benton

In this Podcast Extra, Brody Benton of Six B and John Kempf, founder of Advancing Eco Agriculture, dig into why plants are shutting down weeks before black layer, what top dieback is actually telling you, and how nitrogen form, leaf temperature, and trace minerals decide whether a crop finishes strong or hollows out from the inside. John explains why the fungi behind stalk rot and crown rot — fusarium, rhizoctonia, pythium — are saprophytes that navigate by electrical charge, and why they only attack cells the plant has already given up on. Brody brings the 2026 weather data: 43 nights above 68°F in Polk County, Iowa (vs. a 28–29 night average), 35+ in York County, Nebraska, and record dew points that opened the door for tar spot. Put those together and you get a plant burning protein for energy, converting rubisco and PEP carboxylase back to ammonium, robbing amino skeletons out of the leaves, and dismantling its own photosynthetic engine during grain fill. From there the conversation goes well past stalk rot: front-loaded nitrogen and electrolyte overload, chloride and sodium from manure histories, herbicide and fungicide effects on fungal-to-bacterial ratios, the depletion of microbially active carbon under corn-on-corn and corn-soybean rotations, molybdenum and nitrate assimilation in soybeans, EDTA chelates that pull one nutrient out while adding another, plant sap pH targets, and how humic substances turned a manure pit into liquid gold. **Additional Resources** If you farm in the midwest and would like to get in touch with Brody, please reach out to him via email, [brody.benton@gmail.com](mailto:brody.benton@gmail.com) To listen to the Podcast conversation with Mike Omeg, please visit: https://advancingecoag.com/podcast/episode-188-eliminating-ground-applied-urea-with-mike-omeg/ **About John Kempf** John Kempf is the founder of Advancing Eco Agriculture (AEA). A top expert in biological and regenerative farming, John founded AEA in 2006 to help fellow farmers by providing the education, tools, and strategies that will have a global effect on the food supply and those who grow it. Through intense study and the knowledge gleaned from many industry leaders, John is building a comprehensive systems-based approach to plant nutrition – a system solidly based on the sciences of plant physiology, mineral nutrition, and soil microbiology. **Support For This Show & Helping You Grow** Since 2006, AEA has been on a mission to help growers become more resilient, efficient, and profitable with regenerative agriculture. AEA works directly with growers to apply its unique line of liquid mineral crop nutrition products and biological inoculants. Informed by cutting-edge plant and soil data-gathering techniques, AEA's science-based programs empower farm operations to meet the crop quality markers that matter the most. AEA has created real and lasting change on millions of acres with its products and data-driven services by working hand-in-hand with growers to produce healthier soil, stronger crops, and higher profits. Beyond working on the ground with growers, AEA leads in regenerative agriculture media and education, producing and distributing the popular and highly-regarded Regenerative Agriculture Podcast, inspiring webinars, and other educational content that serve as go-to resources for growers worldwide. Learn more about AEA's regenerative programs and products: https://www.advancingecoag.com