{"podcast":{"title":"UMN Extension Nutrient Management Podcast","slug":"umn-extension-nutrient-management-podcast-4805870","podcast_index_feed_id":4805870,"rss_url":"https://feeds.transistor.fm/umn-extension-nutrient-management-podcast","website_url":"https://nutrientmanagement.transistor.fm/","image_url":"https://img.transistorcdn.com/wAXNUaZPjKWO7UVPcBJSHO0uVfYYw1xA9_xT74CrubI/rs:fill:0:0:1/w:1400/h:1400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS8yNjc4/ZjhlNWE3ZTM1ODg4/ODAyYzJmOTVhMzM4/ZDdkYy5wbmc.jpg","author":"University of Minnesota Extension","episode_count":118,"summary":"Welcome to University of Minnesota Extension's Nutrient Management Podcast. Each month we bring you the latest research in nutrient management for crops and how you can incorporate the latest tips and best management practices to your farm.","last_synced_at":"2026-06-19T04:17:16.419941+00:00","page_url":"https://stenobird.com/podcast/umn-extension-nutrient-management-podcast-4805870"},"episode":{"title":"An introduction to MRTN: Efficiencies & economics in mind","slug":"an-introduction-to-mrtn-efficiencies-economics-in-mind","published_at":"2025-10-14T17:26:07+00:00","page_url":"https://stenobird.com/podcast/umn-extension-nutrient-management-podcast-4805870/an-introduction-to-mrtn-efficiencies-economics-in-mind","show_page_url":"https://stenobird.com/podcast/umn-extension-nutrient-management-podcast-4805870","url":"https://share.transistor.fm/s/ef5c49b1","audio_url":"https://media.transistor.fm/ef5c49b1/c672485c.mp3","summary":"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 Management Updated 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.","meta_description":"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 Nitr…","key_points":[],"chapters":[],"topics":[],"duration_seconds":1710,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/umn-extension-nutrient-management-podcast-4805870/episodes/an-introduction-to-mrtn-efficiencies-economics-in-mind/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/umn-extension-nutrient-management-podcast-4805870/an-introduction-to-mrtn-efficiencies-economics-in-mind.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}