# S4 E16 Organic Fertilizer and Dollar Spot.

Page: https://stenobird.com/podcast/turfgrass-epistemology-6708747/s4-e16-organic-fertilizer-and-dollar-spot
Text version: https://stenobird.com/podcast/turfgrass-epistemology-6708747/s4-e16-organic-fertilizer-and-dollar-spot.md
Podcast: [Turfgrass Epistemology](https://stenobird.com/podcast/turfgrass-epistemology-6708747)
Published: 2026-03-12T09:00:00+00:00
Episode link: https://TurfgrassEpistemology.podbean.com/e/s4-e16-organic-fertilizer-and-dollar-spot/
Audio file: https://mcdn.podbean.com/mf/web/m5amfdrce2npmsg9/Organic_Fertilizer_and_Dollar_Spot8bg4g.mp3
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JSON: https://stenobird.com/v1/public/podcasts/turfgrass-epistemology-6708747/episodes/s4-e16-organic-fertilizer-and-dollar-spot
Duration seconds: 3781

## Resource

In this video, I review the classic turfgrass study “Dollar Spot Severity, Tissue Nitrogen, and Soil Microbial Activity in Bentgrass as Influenced by Nitrogen Source.” We take a close look at whether organic fertilizers really suppress dollar spot and whether soil microbial activity plays the role many people claim. The results may surprise you. The study found that disease suppression was more closely related to nitrogen availability and turf growth than to microbial activity or organic fertilizer sources. If you manage bentgrass fairways or want evidence-based guidance on dollar spot management, nitrogen fertilization, and organic vs synthetic fertilizers, this paper is worth understanding. #turfgrass #golfcoursemanagement #dollarspot #turfgrassscience #fertilizer #bentgrass #soilscience 📌 https://www.gofundme.com/f/TurfgrassEpistemology Thank you for being part of this community and for supporting evidence-based turfgrass science. Join Turfgrass Epistemology to get access to perks:https://www.youtube.com/channel/UC-UZnHkJhAmARDZ4YoHnc_A/join Voicemail:859-444-4234 Apple Podcasthttps://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379 Spotify Podcasthttps://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI iHeart Radio Podcasthttps://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/ Podbeanhttps://turfgrassepistemology.podbean.com/ Online consultingCalendly.com/TravisShaddox TwitterTwitter.com/TravisShaddox EmailTravisShaddox@gmail.com Turfgrass Programs and Extension Service Information:https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf Diagnostic Criteria for Turfgrass Bullshit Disorder:https://drive.google.com/file/d/1Y_GeVPQ237pzm0ImTP4eVij6I9D0PHPn/view

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