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Artwork for Turfgrass Epistemology

Turfgrass Epistemology

Travis Shaddox
Turfgrass Management
Soil Testing
Turfgrass Science
Dollar Spot
Soil Health
Turfgrass
Base Cation Saturation
Liquid Aeration
Turf Management
Phosphorus
Plant Growth Regulators
Nutrient Management
Tall Fescue
Soil Ph
Turf Quality
Irrigation
Kentucky Bluegrass
Irrigation Practices
Turfgrass Quality
Creeping Bentgrass

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 evidence-based information to help you better manage your turfgrass.

PublishesDailyEpisodes299Founded3 years ago
Number of ListenersCategories
EducationEarth SciencesScience

Listen to this Podcast

Artwork for Turfgrass Epistemology

Latest Episodes

Does Mirimichi Green CarbonPro-G really “unlock” nutrients—or could some of the turf response come from nutrients already in the product? In this commentary, we examine the CarbonPro-G marketing claims, product label, and what turf managers should co... more

Where do wetting agents actually go after they enter the soil? This video explores the 1975 study “Movement of Two Nonionic Surfactants in Wettable and Water-Repellent Soils” by R. H. Miller, N. Valoras, and J. Letey, examining surfactant movement, a... more

Can surfactants harm turfgrass roots and reduce plant growth? This video examines the science from “Effects of Nonionic Surfactants on Monocots” by R. M. Endo, J. Letey, N. Valoras, and J. F. Osborn (1969), published in Agronomy Journal, exploring wh... more

Can low oxygen in the soil stop turfgrass roots from growing deeper? This video examines the science from “Physical Soil Amendments, Soil Compaction, Irrigation, and Wetting Agents in Turfgrass Management III. Effects on Oxygen Diffusion Rate and Roo... more

Key Facts

Contact Information
Podcast Host
Number of Listeners
Find out how many people listen to this podcast per episode and each month.

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Recent Guests

John Tomiski
Regional Sales Manager for Mirimichi Green
Mirimichi Green
Episode: S4 E50 Tinfoil Turfgrass - Does CarbonPro-G Unlock Nutrients or Add Them?
Mr. Fargusson
Homeowner/enthusiast featured in a product comparison video
Independent lawn care enthusiast in Central North Carolina
Episode: S4 E45 Wetting agents, turfgrass growth, and soil salinity + Tinfoil Turfgrass
Chun Siong Soon
PhD student, first author on the later study discussed
Singapore/National University research team
Episode: S4 E38 Did Your Brain Decide Before You Did?
Dr. Jada Powlen
Research scientist at Purdue University
Purdue University
Episode: S4 E31 Dr. Jada Powlen - Summer Nitrogen on Tall Fescue?
Steve (Doc)
Presenter in the How To With Doc channel; proponent of Dirt Booster
Anderson's Dirt Booster
Episode: S4 E26 Tinfoil Turfgrass - How to With Steve and BS Booster!
Greg Phillips
YouTuber critiqued on turf practices
Episode: S4 E24 Tinfoil Turfgrass - He Thinks Aerification is the Most Important Thing for Your Lawn. 🤦‍♂️
Polo Fields
Polo Fields Lawn Services, based out of Louisville, Kentucky
Polo Fields Lawn Services
Episode: S4 E22 Elevated Lawnscapes, Turf Therapy, and Polo Fields
Scott McElroy
Professor, weed biology and turfgrass systems expert
Auburn University
Episode: S4 E19 Dr. Scott McElroy - Herbicide and Insecticide Interations
Tim Cartwright
Vice President of Technical Services at Floratine Products Group
Floratine Products Group
Episode: S4 E18 Tinfoil Turfgrass - Floratine 'Master Class' of BS

Host

Travis Shaddix
Host of Turfgrass Epistemology; recurring presenter on turf science, evidence-based practices, and critique of marketing hype.

Reviews

4.9 out of 5 stars from 45 ratings
  • Informative and entertaining

    We need more Tinfoil Turfgrass episodes! Keep up the good work!

    Apple Podcasts
    5
    Madison Grassman
    United States2 years ago
  • Love Shaddox!

    Really enjoy having this podcast queued up. Dr. Shaddox does a great job of sharing his knowledge (especially with a trained monkey like myself) while still holding my attention.

    Apple Podcasts
    5
    Jrpinkerton
    United States2 years ago
  • I want to like this podcast.

    Travis speaks like a true professor. Dull and monotone. His sentences start off normal and then he eventually ends them mumbling in a low voice. Maybe it’s just me, but if there is any background noise I can’t understand half of what he’s saying. Grab a good pair of isolation headphones. You’ll need them.

    Apple Podcasts
    1
    dbstover
    United States2 years ago

Listeners Say

Key themes from listener reviews, highlighting what works and what could be improved about the show.

Informative and entertaining: fans want more episodes like this.
One listener criticized delivery quality and audio clarity, suggesting better isolation headphones.
Guest knowledge and accessible insights resonated well with listeners.

Talking Points

Recent interactions between the hosts and their guests.

S4 E41 Tinfoil Turfgrass - Urea is a Problem...and Other Nonsense.
Q: Was there any benefit to using slow-release nitrogen or stabilized forms in cool weather?
Slow-release forms can reduce peak growth and provide more uniform growth, but under proper watering and BMPs, soluble nitrogen like urea can still perform well; the major takeaway is to match the nitrogen source to soil conditions and irrigation practices rather than blanket rules.
S4 E31 Dr. Jada Powlen - Summer Nitrogen on Tall Fescue?
Q: Is that basically it, or is there more to the study's main takeaway?
The main takeaway is that host genetics largely governs brown patch outcomes in tall fescue under summer nitrogen regimes, with nitrogen rate having limited or cultivar-dependent effects; practical implications include prioritizing resistant cultivars and nuanced fertilization strategies.
S4 E31 Dr. Jada Powlen - Summer Nitrogen on Tall Fescue?
Q: Can you walk me through the photograph and what message you were communicating?
The photo compared a susceptible cultivar (Kingdom) at two nitrogen rates, showing similar brown patch symptoms, while more resistant cultivars (Raptor 3 and Inspiration) showed clear differences in disease severity at the same rate, illustrating genetic resistance as a key factor.
S4 E27 Tinfoil Turfgrass - 35 Years of Experience. 35 Years of Bullsh*t.
Q: Is there a real advantage to stabilized urea versus regular urea in terms of turf response and economics?
The host argues that stabilized urea can reduce volatilization but does not consistently improve turf response enough to justify higher costs, citing literature and practical data showing similar performance but higher price.
S4 E27 Tinfoil Turfgrass - 35 Years of Experience. 35 Years of Bullsh*t.
Q: What would you do if you're dead set on putting a slow release out and you want to minimize burn?
The host suggests using 20% urea blended with 80% slow-release coating to balance early response with extended release, reducing burn risk while still delivering a visible and prolonged turf response.

Audience Metrics

Listeners, social reach, demographics and more for this podcast.

Listeners per Episode
Gender Skew
Location
Interests
Professions
Age Range
Household Income
Social Media Reach

Frequently Asked Questions About Turfgrass Epistemology

What is Turfgrass Epistemology about and what kind of topics does it cover?

The show consistently centers on evidence-based turfgrass science, often challenging marketing claims and hype around products, management tricks, and “soil guru” trends. Episodes typically dissect classic and contemporary research on irrigation, wetting agents, fertilizer practices, soil chemistry, and turf physiology, while emphasizing rigorous methodology and practical BMPs for professionals and serious homeowners alike. A standout thread across episodes is the host's insistence on separating marketing from peer‑reviewed science, with guest voices adding practical field perspectives and real-world tests. The tone blends technical depth with accessible demonstrations, making complex agronomy topics actionable for managers, researchers, an... more

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Which podcasts are similar to Turfgrass Epistemology?

These podcasts share a similar audience with Turfgrass Epistemology:

1. The Doublecut with Micah Woods
2. TurPh.Dudes Podcast
3. USGA Green Section Podcast
4. TurfNet Podcasts
5. Turf Talk

How many episodes of Turfgrass Epistemology are there?

Turfgrass Epistemology launched 3 years ago and published 299 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on Turfgrass Epistemology?

Recent guests on Turfgrass Epistemology include:

1. John Tomiski
2. Mr. Fargusson
3. Chun Siong Soon
4. Dr. Jada Powlen
5. Steve (Doc)
6. Greg Phillips
7. Polo Fields
8. Scott McElroy

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