Turfgrass Epistemology

S3 E20 Comments and Emails. April 2025.

On this episode of Turfgrass Epistemology, I discuss some of the recent comments, emails, and Twitter conversations related to turfgrass science. From thoughtful questions to common misconceptions, I highlight the importance of critical thinking and scientific evidence when evaluating turf management practices. Join me as we explore how public discussions shape what we know—and how we can sharpen our understanding of turfgrass through better communication.
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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/
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Turfgrass Programs and Extension Service Information:https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf

S3 E19 Water Movement In Soils

Join me, a soil scientist, as I delve into the classic educational film "Water Movement In Soils" (https://youtu.be/DmTNFIEc2VA). This video, produced by Washington State University in 1959, provides a foundational understanding of how water moves through different soil types, highlighting the roles of soil texture, structure, and layering.​YouTube
In my commentary, I explore key concepts such as capillary action, infiltration, and percolation, and discuss how these processes affect soil health and plant growth. I also examine the implications for modern soil management practices, including irrigation strategies and soil amendment techniques.​
Whether you're a student, educator, or fellow soil enthusiast, this discussion offers valuable insights into the dynamics of water movement in soils and their practical applications in agriculture and environmental management.​
Don't forget to like, share, and subscribe for more in-depth explorations of soil science topics.
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

S3 E18 Do Irrigation Intervals Affect Turfgrass Rooting?

In this video, we delve into the 1985 study by Peacock and Dudeck, titled "Effect of Irrigation Interval on St. Augustinegrass Rooting," published in the Agronomy Journal. The research examines how varying irrigation intervals—every 2, 3, 4, or 6 days—impact the root mass and length density of St. Augustinegrass. Interestingly, the study found that root development remained unaffected across these intervals, suggesting that less frequent irrigation may not compromise root growth. These findings have significant implications for turfgrass irrigation practices, potentially leading to more efficient water usage without sacrificing turf quality.​
Read the full article here: https://doi.org/10.2134/agronj1985.00021962007700050034x​
#SoilScience #TurfgrassManagement #IrrigationResearch #StAugustinegrass #AgronomyJournal
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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
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EmailTravisShaddox@gmail.com
Turfgrass Programs and Extension Service Information:https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf

S3 E17 Soil CO2 Tests for Bentgrass Putting Greens.

In this video, I break down the science behind the article “Short-term soil carbon mineralization on golf course sand-based putting green and its effect on creeping bentgrass nitrogen uptake.” What does this research tell us about nitrogen cycling, microbial activity, and nutrient availability in high-performance turf systems? Let’s dive into the data and talk implications for turfgrass management.
📢 Watch, learn, and share your thoughts in the comments!
 Zhou, Q., Soldat, D. J., & Ruark, M. D. (2024). Short-term soil carbon mineralization on golf course sand-based putting green and its effect on creeping bentgrass nitrogen uptake. Crop Science, 64, 1051–1060. https://doi.org/10.1002/csc2.21169 
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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

S3 E16 Not Really Tinfoil Turfgrass #5. Particle Size of Urea & Ammonium Sulfate.

As a soil scientist, I’m breaking down the claims made in the video “Stop Overseeding! There’s a Cheaper Way!!” — let’s talk turfgrass science, soil fertility, and whether the advice holds up under scrutiny. Is there really a better, cheaper alternative to overseeding? Let’s find out.
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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

S3 E15 Tinfoil Turfgrass #4: Fastest Way to Get Your Money!

Does the FASTEST Way To Get ANY Lawn Green actually work, or is it just another lawn care myth? As a soil scientist, I break down the claims, analyze the science behind turfgrass nutrition, and reveal what REALLY makes a lawn green—fast and sustainably.
🌱 Is this method safe and effective?⚠️ Are there hidden downsides?🔬 Let’s separate fact from fiction using real soil science!
📢 Watch, learn, and share your thoughts in the comments!
#LawnCare #SoilScience #TurfgrassManagement #GreenGrass #FertilizerFacts
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

S3 E14 Solvita Soil Test.

How can Solvita soil tests help predict turfgrass response? In this video, we break down key findings from the scientific article "Predicting Cool-Season Turfgrass Response with Solvita Soil Tests, Part 1: Labile Amino-Nitrogen Concentrations." Learn how labile amino-nitrogen measurements can provide insights into soil fertility and turfgrass nutrition, potentially improving nutrient management strategies.
📄 Read the full study: https://doi.org/10.2135/cropsci2018.11.0706👍 Like & Subscribe for more turfgrass science!
#TurfgrassScience #SoilTesting #GolfCourseManagement #TurfNutrition
Moore, D.B., Guillard, K., Geng, X., Morris, T.F. and Brinton, W.F. (2019), Predicting Cool-Season Turfgrass Response with Solvita Soil Tests, Part 1: Labile Amino-Nitrogen Concentrations. Crop Science, 59: 1779-1788. https://doi.org/10.2135/cropsci2018.11.0706
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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

S3 E13 Comments, Emails, Twitter, and Soil Reports

In this video, I dive into the fascinating world of turfgrass epistemology by analyzing emails, comments, Twitter discussions, and soil reports. How do these sources shape our understanding of turf science? What insights (or misinformation) can we uncover? Join me as we explore the intersection of communication, scientific reports, and the ever-evolving landscape of turfgrass knowledge.
📩 Drop your thoughts in the comments!🔔 Subscribe for more deep dives into 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

S3 E12 Does Mulching Leaves Reduce Dandelions?

In this video, I review the scientific article "Mulched Maple and Oak Leaves Associated with a Reduction in Common Dandelion Populations in Established Kentucky Bluegrass." What do the findings mean for turfgrass management? How does this study fit into broader turfgrass epistemology? Join me as I break down the methodology, results, and implications for turf science.
📄 Link to the article https://journals.ashs.org/horttech/view/journals/horttech/19/2/article-p297.xml💬 Share your thoughts in the comments!🔔 Subscribe for more turfgrass science discussions!
Kowalewski, A. R., Buhler, D. D., Lang, N. S., Nair, M. G., & Rogers, J. N., III. (2009). Mulched Maple and Oak Leaves Associated with a Reduction in Common Dandelion Populations in Established Kentucky Bluegrass. HortTechnology, 19(2), 297-304. Retrieved Feb 20, 2025, from https://doi.org/10.21273/HORTTECH.19.2.297
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

S3 E11 Will Organic Fertilizer Change Soil Properties on Sport Turf?

Discover how organic management practices can improve the sustainability and safety of athletic fields! 🌱⚽🏈 This video explores key findings from the scientific article Organic Management Practices on Athletic Fields, discussing soil health, turf quality, and environmental benefits. Learn about organic fertilizers, pest management strategies, and how these practices compare to conventional methods. Whether you're a sports field manager, turfgrass professional, or sustainability enthusiast, this video provides valuable insights into maintaining high-performance fields—naturally!
🔬📖 Read the full study: https://acsess.onlinelibrary.wiley.com/doi/abs/10.2135/cropsci2012.03.0195👍 Like & Subscribe for more turf science updates!
Miller, N.A. and Henderson, J.J. (2013), Organic Management Practices on Athletic Fields. Part 2: The Effects on Playing Surface Characteristics and Soil Physical Properties. Crop Science, 53: 637-646. https://doi.org/10.2135/cropsci2012.03.0195
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