Turfgrass Epistemology

Turfgrass Epistemology

By Travis ShaddoxScienceEducationEarth Sciences
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Turfgrass Epistemology episodes

  • S4 E40 Wetter Water?

    Can water really become "wetter"? In this video, we explore the classic paper Soil Wetting Agents by Robert A. Moore (1959) and explain how wetting agents improve water infiltration, root development, and turfgrass performance. Discover why this pioneering research still influences modern turf management today.

    Paper: Soil Wetting Agents

    Author: Robert A. Moore
    Year: 1959

    #Turfgrass #WettingAgents #SoilScience #GolfCourseManagement #Agronomy #TurfManagement #GolfCourse #WaterManagement #TurfgrassScience

    📌 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 Podcast

    https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast

    https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast

    https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean

    https://turfgrassepistemology.podbean.com/

    Online consulting

    Calendly.com/TravisShaddox

    Twitter

    Twitter.com/TravisShaddox

    Email

    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

    1 hr 5 min
  • S4 E39 When Were Wetting Agents First Used for Turfgrasses?

    Can wetting agents improve water movement in golf course turf? In this video, we explore the classic paper "Turfgrass Improvement with a New Water" by Robert A. Moore (1957) and examine how wetting agents help water penetrate the soil, reduce localized dry spots, and promote healthier turfgrass. Discover why this pioneering research continues to influence modern golf course management and turfgrass science.

    Paper: Turfgrass Improvement with a New Water

    Author: Robert A. Moore
    Year: 1957

    #Turfgrass #GolfCourseManagement #WettingAgents #SoilScience #GolfSuperintendent #USGA #Agronomy #TurfManagement #GolfCourse #TurfgrassScience

    📌 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 Podcast

    https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast

    https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast

    https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean

    https://turfgrassepistemology.podbean.com/

    Online consulting

    Calendly.com/TravisShaddox

    Twitter

    Twitter.com/TravisShaddox

    Email

    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

    1 hr 10 min
  • S4 E38 Did Your Brain Decide Before You Did?

    Did your brain make your decision before you became aware of it? In this video, we explore the groundbreaking neuroscience study that found brain activity can predict a person's choice seconds before conscious awareness, and what it means for free will.

    Paper: Unconscious Determinants of Free Decisions in the Human Brain (2008)

    Authors: Chun Siong Soon, Marcel Brass, Hans-Jochen Heinze, and John-Dylan Haynes

    #FreeWill #Neuroscience #BrainScience #DecisionMaking #Psychology #CognitiveScience #science 

    📌 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 Podcast

    https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast

    https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast

    https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean

    https://turfgrassepistemology.podbean.com/

    Online consulting

    Calendly.com/TravisShaddox

    Twitter

    Twitter.com/TravisShaddox

    Email

    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

    59 min
  • S4 E37 Your Brain Decided Before You Knew

    Did Benjamin Libet's famous 1983 experiment prove that your brain decides before you do? In this episode, we examine Libet, Gleason, Wright, & Pearl (1983), "Time of Conscious Intention to Act in Relation to Onset of Cerebral Activity (Readiness-Potential): The Unconscious Initiation of a Freely Voluntary Act." We'll explain the readiness potential, what the study actually found, common misconceptions, and what it does—and does not—tell us about free will, consciousness, and human decision-making.

    #Libet #FreeWill #Neuroscience #Psychology #Consciousness #ReadinessPotential #Science #CriticalThinking #BrainScience #TurfgrassEpistemology

    📌 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 Podcast

    https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast

    https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast

    https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean

    https://turfgrassepistemology.podbean.com/

    Online consulting

    Calendly.com/TravisShaddox

    Twitter

    Twitter.com/TravisShaddox

    Email

    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

    54 min
  • S4 E36 Appeal to Authority: Why Smart People Make Bad Decisions

    In this episode of Turfgrass Epistemology, we examine Stanley Milgram's classic paper, Behavioral Study of Obedience (1963), and explore how authority influences our beliefs and decisions. Why do turf managers, consultants, and consumers often accept claims because a professor, university, or industry expert said them? Learn how the logical fallacy of Appeal to Authority can lead us to substitute credentials for evidence—and why scientific claims should be evaluated by data, not status.

    Paper Discussed:

    Milgram, S. (1963). Behavioral Study of Obedience. Journal of Abnormal and Social Psychology, 67, 371–378.

    #AppealToAuthority #StanleyMilgram #CriticalThinking #LogicalFallacies #TurfgrassEpistemology #Science #EvidenceBasedManagement #GolfCourseManagement #Agronomy #Skepticism

    📌 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 Podcast

    https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast

    https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast

    https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean

    https://turfgrassepistemology.podbean.com/

    Online consulting

    Calendly.com/TravisShaddox

    Twitter

    Twitter.com/TravisShaddox

    Email

    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

    1 hr 15 min
  • S4 E35 Why We Believe Things That Aren't True - Part 1

    In this episode of Turfgrass Epistemology, we examine one of the most influential scientific papers ever published: Judgment Under Uncertainty: Heuristics and Biases by Amos Tversky and Daniel Kahneman (1974).

    This landmark article introduced the concepts of representativeness, availability heuristics, and anchoring—mental shortcuts that help us make decisions but can also lead to systematic errors in judgment. These cognitive biases help explain why anecdotes, testimonials, and memorable success stories often outweigh scientific evidence in turfgrass management, agriculture, business, and everyday life.

    Why do people conclude that a fertilizer, biostimulant, wetting agent, or soil amendment works after a single positive experience? Why do traditional practices persist even when research fails to support them? Tversky and Kahneman provide the psychological foundation for understanding these questions.

    Whether you're a golf course superintendent, sports turf manager, lawn care professional, agronomist, researcher, or simply interested in critical thinking, this paper remains essential reading more than 50 years after its publication.

    Paper Discussed:

    Tversky, A., & Kahneman, D. (1974). Judgment Under Uncertainty: Heuristics and Biases. Science, 185(4157), 1124–1131.

    #TurfgrassEpistemology #CriticalThinking #Science #CognitiveBias #DanielKahneman #AmosTversky #Heuristics #AvailabilityHeuristic #ConfirmationBias #Turfgrass #Agronomy #EvidenceBasedManagement 

    Become a member of Turfgrass Epistemology and support turfgrass research:

    www.youtube.com/@TurfgrassEpistemology/join

    Voicemail:

    859-444-4234

    Apple Podcast

    https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast

    https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast

    https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean

    https://turfgrassepistemology.podbean.com/

    Online consulting

    Calendly.com/TravisShaddox

    Twitter

    Twitter.com/TravisShaddox

    Email

    Turfgrass Programs and Extension Service Information:

    https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf

    1 hr
  • S4 E34 Why Smart People Keep Making This Mistake

    Why do smart people search for evidence that confirms their beliefs instead of trying to prove themselves wrong? In this video, we explore Peter Wason's famous 2-4-6 experiment and the origins of confirmation bias.

    Paper: On the Failure to Eliminate Hypotheses in a Conceptual Task (1960)

    Author: P. C. Wason

    #ConfirmationBias #CriticalThinking #Psychology #DecisionMaking #ScientificThinking #Wason246 #BehavioralScience 

    📌 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 Podcast

    https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast

    https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast

    https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean

    https://turfgrassepistemology.podbean.com/

    Online consulting

    Calendly.com/TravisShaddox

    Twitter

    Twitter.com/TravisShaddox

    Email

    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

    1 hr 18 min
  • S4 E33 What Astrology, Personality Tests, and Soil Tests Have in Common

    Why do generic soil reports feel surprisingly accurate? In this video, we explore the Forer Effect and discuss how vague, universally true statements can create the illusion of personalized insight—whether in personality tests, astrology, or soil analysis.

    Paper: The Fallacy of Personal Validation: A Classroom Demonstration of Gullibility (1949)

    Author: Bertram R. Forer

    #ForerEffect #BarnumEffect #Psychology #CriticalThinking #SoilScience #Turfgrass #ScienceCommunication

    Become a member of Turfgrass Epistemology and support turfgrass research:

    www.youtube.com/@TurfgrassEpistemology/join

    Voicemail:

    859-444-4234

    Apple Podcast

    https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast

    https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast

    https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean

    https://turfgrassepistemology.podbean.com/

    Online consulting

    Calendly.com/TravisShaddox

    Twitter

    Twitter.com/TravisShaddox

    Email

    Turfgrass Programs and Extension Service Information:

    https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf

    54 min
  • S4 E32 Bandwagon Appeal and Social Pressure

    Why do people conform to group pressure even when they know the group is wrong? In this video, we explore Solomon Asch's landmark conformity study, Opinions and Social Pressure (1955), and reveal what his famous experiments teach us about social influence, peer pressure, independent thinking, and human psychology.

    Paper: Opinions and Social Pressure (1955)

    Author: Solomon E. Asch

    #Psychology #Conformity #AschExperiment #SocialPsychology #PeerPressure #BehavioralScience

    📌 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 Podcast

    https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast

    https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast

    https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean

    https://turfgrassepistemology.podbean.com/

    Online consulting

    Calendly.com/TravisShaddox

    Twitter

    Twitter.com/TravisShaddox

    Email

    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

    1 hr 2 min
  • S4 E31 Dr. Jada Powlen - Summer Nitrogen on Tall Fescue?

    Does summer nitrogen really make brown patch worse in tall fescue? In this interview, Dr. Jada Powlen discusses her 2024 study and explains why cultivar selection may be more important than nitrogen rate for managing brown patch disease.

    Paper: Brown patch severity of five tall fescue cultivars as influenced by summer nitrogen rates (2024)

    Authors: Jada S. Powlen, James P. Kerns, Michael A. Fidanza, and Cale A. Bigelow

    #BrownPatch #TallFescue #Turfgrass #Nitrogen #LawnCare #TurfScience #PlantPathology

    Become a member of Turfgrass Epistemology and support turfgrass research:

    www.youtube.com/@TurfgrassEpistemology/join

    Voicemail:

    859-444-4234

    Apple Podcast

    https://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379

    Spotify Podcast

    https://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI

    iHeart Radio Podcast

    https://www.iheart.com/podcast/1323-turfgrass-epistemology-129043524/

    Podbean

    https://turfgrassepistemology.podbean.com/

    Online consulting

    Calendly.com/TravisShaddox

    Twitter

    Twitter.com/TravisShaddox

    Email

    Turfgrass Programs and Extension Service Information:

    https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf

    59 min

About Turfgrass Epistemology

From the publisher's feed

This podcast explores how we know what we know about turfgrass science. If you are a lawn care operator, sport field manager, sod producer, golf superintendent, or a home owner, this podcast provides…

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