Turfgrass Epistemology

S3 E24 Irrigation Frequency on Zoysiagrass Rooting

In this episode of Turfgrass Epistemology, I provide commentary on the scientific article "Irrigation frequency effects on Prizm zoysiagrass establishment from sprigs." We examine how different irrigation intervals influenced establishment speed, coverage, and quality during early growth. I break down the study’s design, highlight the key findings, and discuss how the results apply to real-world turf management decisions—especially for professionals establishing zoysiagrass from sprigs.
article: https://acsess.onlinelibrary.wiley.com/doi/10.1002/agg2.70000
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Apple Podcasthttps://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379
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Turfgrass Programs and Extension Service Information:https://www.usna.usda.gov/assets/images/as_pdf_image/LandGrantColleges.pdf

S3 E23 AI Answers Every Turf Question. But Is It Correct?

In this episode of Turfgrass Epistemology, we put artificial intelligence to the test by asking it turfgrass management questions—fertility, irrigation, mowing, and more. Can AI provide sound, evidence-based answers, or does it fall into common misconceptions? As a soil scientist, I evaluate its responses and reveal what the science actually says.
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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 E22 St. Augustinegrass Response to Irrigation Scheduling

In this episode of Turfgrass Epistemology, I review the scientific article "Physiological Response of St. Augustinegrass to Irrigation Scheduling." We explore how different irrigation strategies impact turf health, drought stress, and water use efficiency. As a soil scientist, I break down the study’s methods and findings to understand what truly benefits St. Augustinegrass under varying moisture conditions.
article: https://acsess.onlinelibrary.wiley.com/doi/abs/10.2134/agronj1984.00021962007600020024x
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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 E21 Dr. Matteo Serena - Optimizing Irrigation Frequency Needed to Establish Cool-Season Turfgrasses

In this episode of Turfgrass Epistemology, I sit down with Dr. Matteo Serena to discuss his paper, "Optimizing Frequency and Amount of Irrigation Needed to Establish Cool-Season Turfgrasses." We explore the key findings, practical applications, and how this research can improve turfgrass establishment strategies. Join us for a deep dive into the science behind efficient irrigation and better turf management.
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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 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/
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 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.
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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 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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Apple Podcasthttps://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379
Spotify Podcasthttps://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI
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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
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Podbeanhttps://turfgrassepistemology.podbean.com/
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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
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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Apple Podcasthttps://podcasts.apple.com/us/podcast/turfgrass-epistemology/id1717271379
Spotify Podcasthttps://open.spotify.com/show/1cTpdrChToeEFAOX9wkXFI
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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
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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
Diagnostic Criteria for Turfgrass Bullshit Disorder:https://drive.google.com/file/d/1Y_GeVPQ237pzm0ImTP4eVij6I9D0PHPn/view