The ATC Doublecut with Micah Woods

An anonymous golf course superintendent wrote that they were "blown away by the quality of these surfaces with an amount of nitrogen I would’ve thought was far too small." I discuss this, and some of the changes I'm made in my thinking about what is "far too small," or not. Also, I discuss some of the preventative fungicide and herbicide applications on golf courses in Japan that keep the zoysia surfaces looking so clean in winter.

See:
- https://www.asianturfgrass.com/post/nitrogen-amount-far-too-small/
- https://www.asianturfgrass.com/post/flipping-things-around/
- https://www.asianturfgrass.com/post/is-two-tenths-of-a-pound-of-nitrogen-a-lot-or-a-little/
- https://www.asianturfgrass.com/post/keeping-turf-free-of-weeds-diseases-insects/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Get ATC newsletters at https://subscribepage.com/atc_newsletters
Turfgrass information and decision-making tools at https://www.paceturf.org/
PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
ATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter
Listen to the ATC Doublecut with Micah Woods podcast at https://doublecut.asianturfgrass.com/
Listen to the ATC Office Hours podcast at https://office-hours.asianturfgrass.com/

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Andrew McDaniel and I worked together at Habu CC in July 2001. We also worked together at the 50th KBC Augusta tournament in August 2023. I reflect on, and discuss, both of these, in this episode.

The blog post discussed is: https://www.asianturfgrass.com/post/looking-back-at-a-july-with-record-heat-and-drought/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Get ATC newsletters at https://subscribepage.com/atc_newsletters
Turfgrass information and decision-making tools at https://www.paceturf.org/
PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
ATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter
Listen to the ATC Doublecut with Micah Woods podcast at https://doublecut.asianturfgrass.com/
Listen to the ATC Office Hours podcast at https://office-hours.asianturfgrass.com/

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Andrew McDaniel joined me from the Keya GC maintenance office to discuss firmness measurements of putting greens, using a 4 ton roller on the greens, and why the greens make a crunching noise when walking across them.

See the blog post we discussed at: https://www.asianturfgrass.com/post/putting-green-data-from-measurement-to-summary/

See the Shorts videos on the ATC YouTube channel: ATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter

See the crunchy zoysia green video on Twitter at: https://twitter.com/asianturfgrass/status/1694144794254361038?s=20

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Get ATC newsletters at https://subscribepage.com/atc_newsletters
Turfgrass information and decision-making tools at https://www.paceturf.org/
PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
Listen to the ATC Doublecut with Micah Woods podcast at https://doublecut.asianturfgrass.com/
Listen to the ATC Office Hours podcast at https://office-hours.asianturfgrass.com/

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I recorded this from Keya Golf Club, which will host the 50th KBC Augusta golf tournament on korai (Zoysia matrella) putting greens this week. I explained why I find this grass on putting greens so interesting, and some of the measurements I'll be making this week.

I discussed this blog post: https://www.asianturfgrass.com/post/tournament-golf-on-zoysia-greens/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Get ATC newsletters at https://subscribepage.com/atc_newsletters
Turfgrass information and decision-making tools at https://www.paceturf.org/
PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
ATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter
Listen to the ATC Doublecut with Micah Woods podcast at https://doublecut.asianturfgrass.com/
Listen to the ATC Office Hours podcast at https://office-hours.asianturfgrass.com/

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Jason Haines joined me for another #TurfMath episode to explain what the growth ratio is, how he uses it, and how he calibrates it.

See this post for the equation and links: https://www.asianturfgrass.com/post/the-growth-ratio-equation/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Get ATC newsletters at https://subscribepage.com/atc_newsletters
Turfgrass information and decision-making tools at https://www.paceturf.org/
PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
ATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter
Listen to the ATC Doublecut with Micah Woods podcast at https://doublecut.asianturfgrass.com/
Listen to the ATC Office Hours podcast at https://office-hours.asianturfgrass.com/

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We discussed the ease of metric units and the utility of knowing some key numbers in turfgrass maintenance.

We discussed this post: https://www.asianturfgrass.com/post/attractions-of-metric-units/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Get ATC newsletters at https://subscribepage.com/atc_newsletters
Turfgrass information and decision-making tools at https://www.paceturf.org/
PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
ATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter
Listen to the ATC Doublecut with Micah Woods podcast at https://doublecut.asianturfgrass.com/
Listen to the ATC Office Hours podcast at https://office-hours.asianturfgrass.com/

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One of the things you can do when you are able to express soil water content as a depth of water, and vice versa, is to express the water loss rate from the soil divided by the reference evapotranspiration. Now you've got a rough estimate of a site specific crop coefficient.

I explained how to do that in this post: https://www.asianturfgrass.com/post/hourly-evapotranspiration-soil-water-content-and-crop-coefficient/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Get ATC newsletters at https://subscribepage.com/atc_newsletters
Turfgrass information and decision-making tools at https://www.paceturf.org/
PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
ATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter
Listen to the ATC Doublecut with Micah Woods podcast at https://doublecut.asianturfgrass.com/
Listen to the ATC Office Hours podcast at https://office-hours.asianturfgrass.com/

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For as long as I can remember, I've used the easy 1 mm = 1 L = 1% soil volumetric water content (VWC) relationship when converting between water use by grass, ET, irrigation, and soil VWC. Bill Kreuser shared the simple calculation to work this out in inches, for any rootzone depth.

The post discussed here is https://www.asianturfgrass.com/post/soil-water-content-turf-hacks/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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I gave three reasons for my preference that sand topdressing amounts be expressed as a depth. One is consistency and standardization. Depth means the area to which the sand has been applied is already accounted for. Others include easy calculation and integration with #OM246, plus clear communication.

The posts discussed here include these:

https://www.asianturfgrass.com/post/three-reasons-sand-depth/
https://www.asianturfgrass.com/post/more-observations-about-course-maintenance-in-japan/
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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Did you know Japan has as many golf holes as England, Scotland, and New Zealand combined? I visited 11 golf facilities in Japan and discuss some of the interesting equipment and numbers related to the maintenance of those courses.

The blog post getting the #ATC2x treatment is: https://www.asianturfgrass.com/post/japan-golf-by-numbers/
The roller with "landing gear" and the 126 hole facility are in this post: https://www.asianturfgrass.com/post/rolling-japan-golf-best-zoysia-course-in-world/
More information about the International Turfgrass Society and the July 2025 International Turfgrass Research Conference in Japan at https://turfsociety.com/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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For any date, time, and location, it's possible to calculate the amount of light grass would get in full sun. I describe how this is done, and show a calculator that will find this value for you.

Direct link to the blog post: https://www.asianturfgrass.com/post/shade-and-sun/
Direct link to the PPFD calculator: https://asianturfgrass.shinyapps.io/ppfd_by_time/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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A research article recommended two spring and one autumn hollow-tine aerification, supplemented by solid-tine aerification during summer, for creeping bentgrass putting greens in the transition zone.

I discussed this, and include links to the article, in this post: https://www.asianturfgrass.com/post/coring-three-times-a-year-is-recommended-when/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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Clouds reduce photosynthetically active radiation by about 25% when you can still see your shadow. When you can't see your shadow, that's about 50% of PAR blocked. And when you can't see your shadow and can't find what part of the sky the sun is in, that's about 75% PAR reduction.

Read about this on a cloudy day in Tokyo, and see two apps that allow you to either check the full sun instantaneous PAR, the full sun daily PAR, or the past year of PAR, for pretty much anywhere in the world: https://www.asianturfgrass.com/post/shade-effect-of-clouds/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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This episode introduces ΔGP, which is cool-season grass growth potential minus warm-season growth potential. Too many days like that and you won't bother trying to grow cool-season grass anymore. Also, best time of the year to soil sample, a superb podcast from Chris Tritabaugh, and a careful look at the difference between soil organic matter and total organic material.

These posts were discussed:

Delta GP and summer of 2022: https://www.asianturfgrass.com/post/last-summer-at-36-locations/
Best time to soil sample: https://www.asianturfgrass.com/post/best-time-of-year-to-soil-sample/
Tritabaugh, Rossi, and Park Grass: https://www.asianturfgrass.com/post/distracting-us-from-the-real-challenges/
All about OM246 testing and the different procedures at the lab: https://www.asianturfgrass.com/post/all-about-om246/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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Mike Richardson from the University of Arkansas joined me to discuss zoysia on putting greens, light requirements of different grass species, grass selection in the transition zone, green speed, and winterkill in a wide ranging conversation. You can find Mike on Twitter at https://twitter.com/ArkansasTurf

Here are links to some of the topics we discussed:

This post with the green speed by species kicked off this doublecut: https://www.asianturfgrass.com/post/green-speed-ridgeline-plot/
Warm-season grass NTEP green speed: https://www.asianturfgrass.com/post/zoysia-green-speed/
Thomas Walton's thesis about Lazer and Tifeagle on greens: https://scholarworks.uark.edu/etd/4396/
Video with Tyler Carr about greens-type zoysia in Knoxville: https://youtu.be/oNw9fPqm6YY
Article by Karcher, Richardson, and O'Brien on measuring light: https://gcmonline.com/course/environment/news/turfgrass-light-requirements
Travis Russell's thesis on daily light integral: https://scholarworks.uark.edu/etd/2778/
Global DLI app to find DLI at your location: https://youtu.be/6kPkHRVIAww
The Turfgrass Twilight zone, from a 1952 report: https://www.asianturfgrass.com/post/turfgrass-twilight-zone/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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Interactive Park Grass photo gallery: https://doi.org/10.23637/rpg5-plotphotos-01
ATC blog post: https://www.asianturfgrass.com/post/park-grass-photos/
Rossi and Woods on dogma: https://www.asianturfgrass.com/post/fertilizer-and-weeds-at-park-grass/
Park Grass video: https://youtu.be/-3-Pm5JUQZ4
Watch this episode on YouTube: https://youtu.be/417kuWeaTvk

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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I discussed this blog post: https://www.asianturfgrass.com/post/is-carbon-the-next-frontier-in-fertilization/
Also this one, how much carbon and humus are in the soil? https://www.asianturfgrass.com/post/how-much-carbon-and-humus-are-in-the-soil/
This video gives an intro to the 2022 Tour de Fungus: https://youtube.com/shorts/x36-KkZ_VFo?feature=share
Watch this episode at https://youtu.be/YuGMUir2GGk
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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Is growth stimulation the real benefit of coring turfgrass? https://www.asianturfgrass.com/post/coring-maybe-real-benefit-is-something-else/
Organic matter reduction calculations from coring: https://www.asianturfgrass.com/post/hollow-tine-solid-topdress-organic-matter/
How much nitrogen mineralization is reasonable to expect from soil organic matter? https://www.asianturfgrass.com/post/estimated-n-mineralization-soil-organic-matter/
Understanding carbon podcast with Frank Rossi: https://www.turfnet.com/podcasts/rossi/understanding_carbon/
Watch this episode at https://youtu.be/fhDsaTnTuTA
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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We discussed this post: https://www.asianturfgrass.com/post/overseeding-inflection/
Larry and I previously discussed the turfgrass growth potential on the ATC Office Hours: https://youtu.be/oZgXv3ZaHkQ

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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I discussed these blog posts.

low pH and annual testing: https://www.asianturfgrass.com/post/one-reason-why-i-recommend-annual-soil-testing-of-sand-rootzones/
Large scale fertilizer recommendation effects: https://www.asianturfgrass.com/post/p-fertilizer-recommendations-as-a-2x-to-18x-multiple-of-mlsn/
Portugal seminars: https://www.asianturfgrass.com/post/five-short-seminars-on-exiciting-topics/
Spain seminars: https://www.asianturfgrass.com/post/turfgrass-on-a-spanish-tour/
Watch this episode at: https://youtu.be/WFj2gc4bhtk
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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This episode looks at these posts:

https://www.asianturfgrass.com/post/grass-clippings-year-to-date/
https://www.asianturfgrass.com/post/fertilizer-recommendations-by-spf-slan-mlsn/
https://www.linkedin.com/pulse/fertilisation-decisions-based-minimal-levels-sustainable-hahn/

Watch this episode at https://youtu.be/IX54ncnlvug

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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We discussed these posts and articles.

My blog post: https://www.asianturfgrass.com/post/the-most-common-soil-testing-mistakes-and-how-to-avoid-them/
Doug's "How Reliable is Soil Testing" article: https://archive.lib.msu.edu/tic/groot/article/2013may8.pdf
Follow Doug on Twitter at https://twitter.com/djsoldat
Our tissue testing discussion on ATC Office Hours: https://youtu.be/91uKNFJxGDY
More about drying soil samples: https://www.asianturfgrass.com/post/reminder-to-air-dry-soil-samples/
ATC's "secret" soil testing newsletter: https://subscribepage.com/soil
Watch this episode at https://youtu.be/HWf8fZVpgJc

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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An alternative reference for frost delays (https://www.asianturfgrass.com/post/an-alternative-reference-for-frost-delays/) has links to all the articles, reference guides, photos, and conversations we discussed.

James Huntoon joined me to talk about frost delays and frost damage on turf in winter. Follow Jim on Instagram https://www.instagram.com/huntoonjmsc/ and Twitter https://twitter.com/huntoonjmsc

Watch this episode at https://youtu.be/TbGKQAIABhA
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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Watch this episode at https://youtu.be/la1ulEIgVT0

Jason Haines is the golf course superintendent at Sunshine Coast Golf and CC in British Columbia, Canada. We discussed this post from the ATC website: https://www.asianturfgrass.com/post/clipping-volume-growth-ratio/

Jason's blog: https://fusariummy.blogspot.com/
The turfgrass speedo (or growth ratio): https://fusariummy.blogspot.com/2018/12/turfgrass-speedo.html
Productivity files (spreadsheets): https://fusariummy.blogspot.com/p/jason-productivity-files.html

Dissolving urea: https://youtube.com/shorts/oXETrSSDdS8?feature=share
1 g N dissolves in less than a minute: https://youtube.com/shorts/5wM8ZD_iZQw?feature=share

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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I discussed this post: https://www.asianturfgrass.com/post/reminder-to-air-dry-soil-samples/
Subscribe to the ATC soil testing newsletter at https://subscribepage.com/soil

See the ATC newsletters at https://subscribepage.com/atc_newsletters
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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Bjarni joined me to discuss this post: https://www.asianturfgrass.com/post/turfgrass-notes-iceland/
See a photo gallery of turfgrass on golf courses in Iceland at https://www.asianturfgrass.com/post/turfgrass-in-iceland/
Follow Bjarni on Twitter at https://twitter.com/BHannesson
Find out more about the WinterTurf project at https://winterturf.umn.edu/

Watch this episode on YouTube at https://youtu.be/QbDxAC4awH4
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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Joe Gulotti joined me to discuss this post: https://www.asianturfgrass.com/post/turf-consistency-color/
Find Joe's "The Talking Greenkeeper" podcast at https://podcasts.apple.com/us/podcast/the-talking-greenkeeper/id1435947281
Follow Joe on Twitter at https://twitter.com/hardg43
Watch this episode on YouTube at https://youtu.be/_ZXMdffdBaI

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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Mowing patterns in tea fields: https://www.asianturfgrass.com/post/stripes-after-mowing-not-just-grass/
18 videos from a 2 week turfgrass tour in Japan: https://www.asianturfgrass.com/post/two-week-turfgrass-tour-in-japan/
WinterTurf project and duration of snow cover in Hokkaido: https://www.asianturfgrass.com/post/duration-of-snow-cover-in-hokkaido/
Watch this episode at: https://youtu.be/VPn2fbQj5ZA
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters

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This episode discusses these four posts:

https://www.asianturfgrass.com/post/normal-manganese-levels-in-soil-and-turfgrass-leaf-tissue/
https://www.asianturfgrass.com/post/atc-doublecut-listeners-by-country/
https://www.asianturfgrass.com/post/highlights-from-my-new-zealand-textbooks-and-mlsn-presentations/
https://www.asianturfgrass.com/post/do-more-people-watch-or-listen-to-atc-doublecut/
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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I discussed recent research on drought performance of warm-season grasses: https://www.asianturfgrass.com/post/drought-performance-of-warm-season-turfgrasses/
The KBC television highlights video showing golf shots and ball reaction is at https://youtu.be/GU6P0vufFNc
The Asian Turfgrass Center YouTube channel at https://www.youtube.com/asianturfgrasscenter
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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We discussed this post:

https://www.asianturfgrass.com/post/a-common-misapprehension-about-seashore-paspalum/

Find Jon on Twitter at https://twitter.com/DirtyBulk
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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Watch the 2022 KBC Augusta Tournament at https://www.youtube.com/watch?v=3SC9_M_E8DM
I discussed this post about zoysia and bermudagrass green speed: https://www.asianturfgrass.com/post/zoysia-and-bermudagrass-green-speed-with-identical-maintenance/
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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I talked about these posts.

More than average tournament: https://www.asianturfgrass.com/post/why-kbc-is-so-interesting/
Round numbers and closed days for maintenance: https://www.asianturfgrass.com/post/golf-rounds-and-days-open/
Sodium potassium ratios: https://www.asianturfgrass.com/post/sodium-and-potassium-as-percentages-or-concentrations/
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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Joe Gulotti joined me to discuss the posts on my blog that no one read. In this episode, we discussed grass on tram lines in Kumamoto City. Here's the post: https://www.asianturfgrass.com/post/kumamoto-city-tram-grass/

Joe is host of the Talking Greenkeeper podcast: https://podcasts.apple.com/us/podcast/the-talking-greenkeeper/id1435947281
We discussed his fine episode with Michael Kantor, lightweight greens rolling expert: https://podcasts.apple.com/us/podcast/michael-kantor/id1435947281?i=1000568361246
You can find Joe on Twitter at https://twitter.com/hardg43

Turfgrass information and decision support tools at PACE Turf: https://www.paceturf.org/
PACE Turf's YouTube channel: https://www.youtube.com/user/paceturf
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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Paul and I discussed a number of locations around Asia including Da Nang, Thailand, Hokkaido, Sri Lanka, Myanmar, Indonesia, and the Philippines, for their relative merits as golfing destinations.

Follow Paul on Twitter at https://twitter.com/pauljansengolf
Jansen Golf Design website at https://jansengolf.com/
Jon Wall visits Himalayan GC: https://twitter.com/DirtyBulk/status/427424969157799936
Jon Wall visits Himalayan GC for a second time: https://twitter.com/DirtyBulk/status/824231111899254784
Erik Anders Lang visits Himalayan GC: https://youtu.be/aIvZrTYo8t4
Subscribe to the PACE Turf information service: https://www.paceturf.org/
Read more about all kinds of turfgrass topics: https://www.asianturfgrass.com/
See the ATC newsletters: https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast: https://atc-office-hours.transistor.fm/
Watch this episode on the ATC YouTube channel: https://www.youtube.com/asianturfgrasscenter

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John's Turfgrass Management book is available at https://turfpath.com/
Turfgrass information and decision support tools at PACE Turf: https://www.paceturf.org/
PACE Turf's YouTube channel: https://www.youtube.com/user/paceturf
ATC's YouTube channel: https://www.youtube.com/c/AsianTurfgrassCenter
We discussed my acquisition and this blog post: https://www.asianturfgrass.com/post/more-about-the-pace-turf-acquisition/
ATC Shiny apps page: https://www.asianturfgrass.com/shiny-apps/
PACE Turf GP avatar app: https://paceturf.shinyapps.io/GPAvatar/
ATC's Global DLI (photosynthetically active radiation) app: https://asianturfgrass.shinyapps.io/global_dli/
Mark Smith's manganese discussion: https://twitter.com/marks_sm1th/status/1550778220060069890
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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My blog post about the experiment: https://www.asianturfgrass.com/post/least-enjoyable-experiment-ever/
Frank's Green Section Record article about the experiment, "In Search of the Silver Bullet" https://gsrpdf.lib.msu.edu/?file=/2000s/2004/040916.pdf
Frank's GCM magazine article about the experiment, "Effects of microbial and organic products on putting green performance" http://files.asianturfgrass.com/rossi_2006_gcm_fertilizer_programs.pdf
Follow Frank Rossi on Twitter at https://twitter.com/FrankSpeaks3
Watch this episode on YouTube: https://youtu.be/OEc7j7HeBTw
Get turfgrass information resources at https://www.paceturf.org/
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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I spoke with Andrew Thomson about golf at remote courses in Japan, playing links golf courses with old golf clubs, hickory golf, and target golf created by mowing patterns.

Read more about these courses at: https://www.asianturfgrass.com/post/botanizing-nippon-treasure-links/
Andrew's book "Bridge to the Gods: Tales from Kyushu" is available from Ryan Publishing (http://www.ryanpub.com.au/bridgetothegods.htm) and from all fine booksellers.
Follow Andrew on Twitter at https://twitter.com/newsfromkyushu
Watch this episode at https://youtu.be/QyWJfg-1hPU
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Get turfgrass information resources at https://www.paceturf.org/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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This episode discusses dollar spot and the Smith-Kerns model, making fertilizer recommendations as a ratio, and ranking locations for warm-season grasses based on light restriction caused by cloud cover.

https://www.asianturfgrass.com/post/checking-dollar-spot-with-model-probability/
https://www.asianturfgrass.com/post/survey-results-preferences-fertilizer-ratio-or-percentage/
https://www.asianturfgrass.com/post/low-light-locations-for-warm-season-grasses/

Other related videos include:

Zoysia greens? How good can they be? https://youtu.be/YajsiwdGkcI
The distinctive ball roll on zoysia (korai) greens: https://youtu.be/0yiM7Ti08do
Ball reaction (bounce and roll) on korai zoysia greens at the Sansan KBC Augusta golf tournament: https://youtu.be/bbcJhA1zqNo
zoysiagrass putting greens and sportsturf with Tyler Carr: https://youtu.be/oNw9fPqm6YY
Watch this episode at https://youtu.be/lEkbs_B-vrE
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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This episode discusses two posts.

One is about Zoysia seedheads and the interesting and troublesome phenomenon of seedhead production for more than half the year: https://www.asianturfgrass.com/post/a-hypothesis-about-fecundity-of-zoysia/

The second post is about pitch marks on greens and about the one sure way I know of to reduce their size and severity---firmer green surfaces: https://www.asianturfgrass.com/post/pitch-marks-that-last-for-days/

Also mentioned in this episode:

transporting zoysia sod by longtail boat in Thailand: https://youtu.be/5rWaSy8eRQ0
ball bounce on greens topdressed once in a year: https://youtu.be/bbcJhA1zqNo
playability of golfing surfaces with, office hours with Carl Schimenti: https://youtu.be/2fMhNSEkpLI
Watch this episode at https://youtu.be/bPhRBPAE1-s
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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The post we discussed is https://www.asianturfgrass.com/post/of-trees-turf-and-tournament-golf/, which considers which grasses work well in conditions of cloudy weather combined with tree shade. In particular, we discuss manilagrass (Zoysia matrella) and tropical carpetgrass (Axonopus compressus).

I also mentioned Tyler Carr's zoysia grow-in experiments at the University of Tennessee, which can be seen in this video: https://youtu.be/oNw9fPqm6YY

Watch this episode at https://youtu.be/uF153okig64
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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The post discussed is https://www.asianturfgrass.com/post/soil-water-management-3-problems-with-solutions/.
You'll find examples and links to additional reference material about these problems there.

Watch this episode at https://youtu.be/WcMfNj16Q70
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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The topic for this episode was fertilizer, and Andrew McDaniel joined me to discuss this post: https://www.asianturfgrass.com/post/how-to-spend-5000-tournament-green-fertilizer/
Saving 82% on fertilizer cost and "the grass has never been healthier": https://www.asianturfgrass.com/post/saving-82-percent-gsr/
atc-turf Discord invite: https://discord.gg/K8tWApB5ME
Watch this episode at https://youtu.be/vvxrRs8GCBI
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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The post discussed in this episode is https://www.asianturfgrass.com/post/surface-hardness-correlations/. I planned to discuss this one also but decided to hold that discussion for another episode: https://www.asianturfgrass.com/post/density-plots-clegg-putting-greens/. I was joined by Andrew McDaniel (https://twitter.com/drumcturf) for this discussion.

I also mentioned the chart from Steve Isaac showing the target firmness levels for links course championship events. You can see that chart in this post: https://www.asianturfgrass.com/post/three-things-to-do-with-om246-data-right-now/

Watch this episode at https://youtu.be/Lb0IU9MFnGc
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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Joe joined me to talk about one of the least read blog posts of 2018. This one, about soil microbes being in an environment with ample carbon, but being limited by nitrogen: https://www.asianturfgrass.com/post/microbes-live-carbon-rich-nitrogen-poor-world/
We also discussed this post, "How much carbon and humus are in the soil?" https://www.asianturfgrass.com/post/how-much-carbon-and-humus-are-in-the-soil/
Joe Gulotti on Twitter: https://twitter.com/hardg43
The Talking Greenkeeper podcast: https://podcasts.apple.com/us/podcast/the-talking-greenkeeper/id1435947281
The Walking Greenkeeper blog: http://www.thewalkinggreenkeeper.com/
ATC Office Hours about playability of golfing surfaces with Carl Schimenti: https://share.transistor.fm/s/b6b3bb32
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Watch this episode on YouTube at https://youtu.be/Z9OQZ1SW_JY
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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I find it really useful to consider nutrient applications as ratios rather than as quantities. Read more in this post: https://www.asianturfgrass.com/post/how-i-recommend-fertilizer-ratios/

I was a guest on the Pullin' Weeds podcast. See my birdie dance and a link to that episode: https://www.asianturfgrass.com/post/talking-turf-on-pullin-weeds/

Watch this episode on YouTube at https://youtu.be/_UweU0dJbdc
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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Andrew McDaniel (https://twitter.com/drumcturf) joined me as a special guest on this episode to talk about the extra hole at Kawana's Fuji Course (https://www.asianturfgrass.com/post/best-extra-hole-in-golf/) and about tropical turf management at Nikanti GC in Thailand with #MLSN, #ClipVol, and #OM246 (https://www.asianturfgrass.com/post/all-the-hashtags-in-a-tropical-climate/)

Watch this episode at https://youtu.be/8J18ekJJSqM
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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The charts shown in this episode with Clegg, TDR, stimpmeter, and #BobbleTest scores are available in this blog post: https://www.asianturfgrass.com/post/our-vip-tent-seminar-at-catalunya-championship/
See the ATC newsletters: https://subscribepage.com/atc_newsletters
Read more about OM246 testing: https://www.asianturfgrass.com/project/om246/
See the video with Stadium Course superintendent Alfredo Álvarez: https://youtu.be/tL_jbEk24g8
Watch this episode on YouTube at: https://youtu.be/Snnm4E9Jdt0
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

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It is easy to know when grass grows too slow: https://www.asianturfgrass.com/post/dangerous-grow-too-slow/
Tom Cook's extraordinary lawn (blog post): https://www.asianturfgrass.com/post/tom-cooks-extraordinary-lawn/
Tom Cook lawn tour video: https://youtu.be/mcCxYVSIc5k
Flying Blind video with David Bataller: https://youtu.be/n8Ir2lVnGyE
Watch this episode on YouTube: https://youtu.be/iNNvOvnT_PE
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters

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This is an obvious concept but the implications are complex. If soil organic matter accumulates more rapidly in young soils, and if one wants to manage soil organic matter most efficiently, then it makes sense to keep the soils in an older, rather than in a younger, state.

Soil age and OM accumulation rate: https://www.asianturfgrass.com/post/organic-material-accumulates-faster-when-soil-om-is-lower/
My preferred OM246 sampling method: https://www.asianturfgrass.com/post/my-preferred-method-of-om246-sample-collection/

Watch this episode at https://youtu.be/5WNYy4lL6Ks
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters

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I discuss my visit to (and seminar at) the University of Florida, and consider whether soil organic matter content stability over time might be related to the inherent accumulation rate of said organic matter.

My visit to University of Florida: https://www.asianturfgrass.com/post/seminar-and-visit-at-university-of-florida/
My recorded seminar screencast from University of Florida: https://youtu.be/P6v6tfG7M-E
Organic matter won't exist if the grass doesn't grow enough to produce it: https://www.asianturfgrass.com/post/what-if-it-was-never-there/

Watch this episode at https://youtu.be/2IKfu_OeqKg
Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters

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Recorded Ireland conference presentations: https://www.asianturfgrass.com/post/soil-grass-and-playability/
Tissue testing manifesto: https://www.asianturfgrass.com/post/tissue-test-manifesto/
MLSN and correcting soil "deficiencies": https://www.asianturfgrass.com/post/mlsn-and-correcting-soil-deficiencies/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Watch this episode at https://youtu.be/quU8F8X8Sxk

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I discuss tests for soil organic matter, and explain the distinction between those tests and a different kind of test for total organic material by depth. I also talked briefly about a new MLSN film.

I discussed the "A Tale of Two Tests" blog post which describes the value of measuring soil organic matter (SOM) and also measuring total organic material by depth (#OM246): https://www.asianturfgrass.com/post/tale-two-tests-soil-organic-matter/
I mentioned the MLSN film shoot in Thailand: https://www.asianturfgrass.com/post/mlsn-film-shooting-in-hua-hin/
Read more about organic matter on the ATC website: https://www.asianturfgrass.com/tag/organic-matter/
ATC newsletters: https://subscribepage.com/atc_newsletters
Watch this episode on YouTube at: https://youtu.be/5cyEJm2ThHc

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This is the crash course post: https://www.asianturfgrass.com/post/crash-course-in-om246-organic-matter-testing/
Watch this episode at: https://youtu.be/fk1-Ws7b5vU
OM by mass or volume? https://www.asianturfgrass.com/post/organic-matter-by-mass-or-volume/
Temperature for loss on ignition in turfgrass soils: https://www.asianturfgrass.com/post/measuring-organic-matter-ignition-temperature/
Listen to the ATC Doublecut at: https://atc-doublecut.transistor.fm/subscribe
Sign-up to ATC newsletters at: https://subscribepage.com/atc_newsletters

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I discuss these blog posts.

Whats normal for OM2: https://www.asianturfgrass.com/post/whats-normal-for-om2/
Playability, putting green disruption, and scheduling: https://www.asianturfgrass.com/post/playability-disruption-and-scheduling-notification-note/
Fertilizer supply vs nutrient use: https://www.asianturfgrass.com/post/fertilizer-supply-vs-nutrient-use/
One simple trick to better greens: https://www.asianturfgrass.com/post/one-simple-trick-better-greens/
Maximum organic matter, not minimum, should be the goal: https://www.asianturfgrass.com/post/max-om-in-soil-as-a-goal/

Watch this episode on YouTube at: https://youtu.be/OvZmGMme6qU

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The blog post with data and chart is at: https://www.asianturfgrass.com/post/fertilizer-supply-vs-nutrient-use/
Watch this episode on YouTube at: https://youtu.be/KiMIvY4NdZ0
More information about all these topics at the Asian Turfgrass Center website

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This discusses how changing the variance value in the turfgrass growth potential equation will change the shape of the curve as one moves away from the optimum growth temperatures.

PACE Turf: https://www.paceturf.org/
Climate appraisal forms with GP equations included: https://www.paceturf.org/index.php/journal/climate
Watch this episode at: https://youtu.be/HBquDPySSto
ATC Office Hours with Dr. Larry Stowell discussing GP: https://youtu.be/oZgXv3ZaHkQ
ATC website: https://www.asianturfgrass.com/
ATC newsletters: https://www.asianturfgrass.com/#newsletters
I started showing these slides on Turfgrass efficiency: the best playing conditions with the fewest inputs https://speakerdeck.com/micahwoods/turfgrass-efficiency-the-best-playing-conditions-with-the-fewest-inputs

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I discussed using the temperature-based growth potential (GP) to make comparisons between locations. The chart with 33 locations around the world is in this post: https://www.asianturfgrass.com/post/gp-as-proxy-for-season-length/

Here's the climate appraisal form from: https://www.paceturf.org/index.php/journal/climate

My "Short Grammar of Greenkeeping" book is available at https://leanpub.com/short_grammar_of_greenkeeping

My "Micah no jikan" book is available at https://www.amazon.co.jp/dp/4772841725/ref=cm_sw_r_cp_ep_dp_U-eyAbHH25ZNN

Get the full text of every new blog post from ATC by subscribing to the blog update email newsletter: https://www.asianturfgrass.com/#newsletters

Watch this episode on YouTube at https://youtu.be/DhfEmtrYDBo

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I discuss a survey I conducted about how soil samples are typically collected prior to sending to a laboratory for analysis.

I discussed these blog posts that show the background and the full survey results:

https://www.asianturfgrass.com/post/results-soil-sampling-survey/
https://www.asianturfgrass.com/post/how-do-you-soil-sample/

You can watch this episode on YouTube at https://youtu.be/7-k2mTrtR38

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This is about #MLSN and about the precision fertilisation approach developed by Tom Ericsson.

The post I discussed is at: https://www.asianturfgrass.com/post/2-similar-approaches-to-fertilization-with-1-notable-difference/

The clip of John Jacob and Joe Gulotti is from this episode of the Talking Greenkeeper podcast: https://podcasts.apple.com/us/podcast/the-talking-greenkeeper/id1435947281?i=1000549114196

PACE Turf's climate appraisal form is a site-specific calculator to apply these methods for your site: https://www.paceturf.org/index.php/journal/climate

STERF's precision fertilisation guide is at: http://www.sterf.org/sv/library/handbooks/fertilisation

Watch this episode on YouTube at: https://youtu.be/JBLIc9-i9GA

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I gave a detailed answer to 5 comments about this Office Hours episode (https://youtu.be/J5_5mDJ-Vxc) about OM246 testing. The blog post I discussed in this episode is: https://www.asianturfgrass.com/post/five-comments-about-atc-office-hours-om246/

I also talked about these blog posts on roots, and about potassium.

Roots: https://www.asianturfgrass.com/post/turf-roots-and-fertilizer/
Potassium deficiencies are not pretty: https://www.asianturfgrass.com/post/have-you-seen-turf-that-ran-out-of-k
Potassium deficiencies are a very bad thing: https://www.asianturfgrass.com/post/3-hours-mlsn-one-slide/
OM246 sampling instructions: https://www.asianturfgrass.com/project/om246/om246_sampling_instructions.pdf

Watch this episode on YouTube at https://youtu.be/bwZu86OIjx0

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I showed photos of two lawns in this post: https://www.asianturfgrass.com/post/wonders-of-traffic-on-turfgrass/

Watch this episode at: https://youtu.be/NL7hkazsGSY

Both lawns are manilagrass (Zoysia matrella) in southern Thailand. One is beside the road on one of my regular running routes, and another is on an island. Neither are mown. Both receive traffic in some areas and not in others. There is a remarkable difference in turfgrass appearance and quality as a lawn or sporting surface, based only on the amount of traffic received.

See more turfgrass info from ATC at https://www.asianturfgrass.com/

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I discussed 4 posts in this ATC Doublecut episode.

Turf Twitter analysis in 2021: https://www.asianturfgrass.com/post/turf-twitter-analysis-2021/
The ten posts no one read in 2021: https://www.asianturfgrass.com/post/ten-posts-no-one-read-in-2021/
ATC content preferences survey results: https://www.asianturfgrass.com/post/atc-content-survey-results/
An update about two ways to think of turfgrass irrigation---deep and infrequent application of water, or light and frequent application: https://www.asianturfgrass.com/post/always-heard-deep-infrequent-way-to-go/

You can also watch this episode at: https://youtu.be/JgjCBjHl04Y

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These posts are at:

https://www.asianturfgrass.com/post/top-ten-posts-of-2021/
https://www.asianturfgrass.com/post/awesome-list-2021/

Watch this episode on YouTube at https://youtu.be/bZFegyB3cUM

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This is a direct link to the blog post discussed in this episode, including the charts showing organic matter variation from green to green on the same course: https://www.asianturfgrass.com/post/organic-matter-variability-between-greens-at-the-same-site/

Watch the video of this episode on the ATC YouTube channel: https://youtu.be/DAhxoA_zhZw

Sign up for free ATC newsletters at: https://www.asianturfgrass.com/#newsletters

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The 4 minute read: https://www.asianturfgrass.com/post/office-hour-discussion-summarized/

The 2.5 hour original video: https://youtu.be/J5_5mDJ-Vxc

Watch this episode on YouTube: https://youtu.be/B6vdkMeDFoc

Subscribe to ATC email newsletters: https://www.asianturfgrass.com/#newsletters

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I showed photos from a post on zoysia, water use, and fact checking, to show that when irrigation is restricted, and it doesn't rain---drought conditions---zoysia needs more water than bermuda to stay green and growing. The post is here: https://www.asianturfgrass.com/post/zoysia-and-water-use/

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This episode is a discussion of this blog post and article: https://www.asianturfgrass.com/post/one-thing-i-wish-everyone-understood-about-mlsn/

Grass uses nutrients, so we can expect the soil nutrient level to be lower tomorrow than it is today. By making a prediction of the decline in soil nutrient levels for a specific time duration, one can come up with a fertilizer recommendation that ensures the grass will be supplied with all the nutrients it can use.

PACE Turf's climate appraisal form makes all these calculations for you: https://www.paceturf.org/index.php/journal/climate

To receive the full text of each new ATC blog post the same day it is published, subscribe: https://www.asianturfgrass.com/#newsletters

Watch this episode of The ATC Doublecut at: https://youtu.be/9TtqqkamAsc

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The volume of organic matter is shown in this blog post: https://www.asianturfgrass.com/post/organic-matter-by-mass-or-volume/

The video of this episode is at: https://youtu.be/pk0KGYxbNMA

Subscribe to ATC newsletters at: https://www.asianturfgrass.com/#newsletters

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I talked about this blog post: https://www.asianturfgrass.com/post/potassium-reserve-in-the-soil/

The Dest and Guillard article about the bentgrass grown in eight different sands is available at https://opencommons.uconn.edu/cgi/viewcontent.cgi?article=1017&context=plsc_articles

Bier et al. on the six year study with more Microdochium where K was applied, and no response to added K, is at https://doi.org/10.1007/s11104-018-3765-8

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This episode discusses the topics I wrote about in this post: https://www.asianturfgrass.com/post/soil-organic-matter-and-n-mineralization-bangkok-reykjavik/

The video of this episode is at: https://youtu.be/g31xMEG_voQ

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Grass growth varies by season. And a common question is "how much should I expect my grass to be growing?" The turfgrass growth ratio, conceived of by Jason Haines, is a way to express the actual growth in a seasonally-adjusted way.

The blog posts on this are at:

First one: https://www.asianturfgrass.com/post/clipping-volume-growth-ratio/
Second one: https://www.asianturfgrass.com/post/temperature-growth-seasonal-changes-optimum-clipvol/

ATC newsletters subscriptions: https://www.asianturfgrass.com/#newsletters

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I discuss the standard practice of sodding highway medians with zoysia (manilagrass) in Thailand and why the zoysia does not persist.

Photos at: https://www.asianturfgrass.com/post/more-about-zoysia-highway-medians-thailand/ and https://www.asianturfgrass.com/post/sodding-miles-of-road-median-with-zoysia/

ATC newsletters at https://www.asianturfgrass.com/#newsletters

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I introduced this bullet list: https://www.asianturfgrass.com/post/soil-organic-matter-bullet-list/

This is the OM246 project page with sampling instructions: https://www.asianturfgrass.com/project/om246/

ATC newsletters: https://www.asianturfgrass.com/#newsletters

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The post discussed in this episode is about inertia: https://www.asianturfgrass.com/post/inertia-as-the-force-of-inactivity/

More about frost at https://www.asianturfgrass.com/tag/frost/

Sign-up to ATC newsletters for more turfgrass info at https://www.asianturfgrass.com/#newsletters

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This is a description and narrative of the blog post about a popular topic --- carbon fertilizer and soil organic matter.

The blog post is https://www.asianturfgrass.com/post/how-much-carbon-and-humus-are-in-the-soil/

ATC newsletter subscriptions: https://www.asianturfgrass.com/#newsletters

All ATC blog posts tagged "carbon": https://www.asianturfgrass.com/tag/carbon/

Hopkins & Hopkins asking "is carbon the next frontier in fertilization?": https://www.asianturfgrass.com/post/is-carbon-the-next-frontier-in-fertilization/

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This is a discussion of my blog post on sand topdressing amounts over five years, and how it happens that the five year total is actually less than I once recommended by applied in routine maintenance in a single year. The post I discuss is:

https://www.asianturfgrass.com/post/surface-layer-organic-matter/

If you'd like to receive new posts from the ATC blog the same day they are published, sign-up here:

https://www.asianturfgrass.com/#newsletters

I also mentioned the post and video in which I highlighted the playing conditions after only one topdressing in a year:

https://www.asianturfgrass.com/post/what-happens-if-you-dont-sand-greens/

https://youtu.be/bbcJhA1zqNo

This explains more about site-specific organic matter accumulation rates:

https://www.asianturfgrass.com/post/inexorable-rise-soil-organic-matter/

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I discuss this blog post: https://www.asianturfgrass.com/post/adding-potassium-does-not-increase-soil-ability-to-store-it/

ATC newsletter subscriptions: https://www.asianturfgrass.com/#newsletters

MLSN hub: https://www.asianturfgrass.com/mlsn/

More about Jackie Guevara's soil test and fertilizer research at Michigan State University:
https://www.asianturfgrass.com/post/mlsn-and-turfgrass-nutrient-recommendations/

https://www.asianturfgrass.com/post/soil-test-showdown/

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Hi. I'm Micah Woods, chief scientist at the Asian Turfgrass Center. I've been studying turfgrass around the world since the 1990s, and I've been writing about turfgrass on my blog in three decades now. That's more than a thousand posts about all kinds of turfgrass topics --- playing conditions, fertilizer, soil tests, grass selection, sustainability, frost delays, growth rate --- pretty much everything that I've been interested in.

In this ATC Doublecut series, I'm discussing some of these same topics. Mostly it's the new blog posts, the most recently published ones, but I may take a second look at some of the classic, perennially popular topics. And that's what this Doublecut is --- another look at a topic, with some supplemental information, perhaps some background stories about the topic that I didn't include in the blog post, a justification for why I thought the topic was important enough to write about, and important enough for you to read.

These are going to be in the form of videos, so I can show some photos or charts if I think they are relevant, and I'm also releasing this series as a podcast, because I try to describe what I am seeing, so I think this can work as pure audio too. If you think the topic is interesting enough to learn more about, and I hope you will, then you can check out the details at asianturfgrass.com. I put the link to each post getting the Doublecut treatment in the show notes.

My idea with this series is to discuss each topic in a casual way, without too many numbers. To hit the key points, as if I were talking with a friend, explaining why I wrote the blog post, and what I am excited about with that particular topic, and what I hope a broader knowledge of that topic might accomplish. If you are a regular reader of the ATC website, then I expect this will be interesting for you because it provides more information about the topics I've written about. And if you are not a regular reader, I hope you'll find the ATC Doublecut enjoyable, as an easy way to find out more about these topics, without having to stop what you're doing, sit down, and read.

Turfgrass management and some of the technical details, that's a niche topic. To be able to connect with people around the world with interest in this same niche topic of turfgrass management, that's an amazing thing. Thanks for listening, watching, and for your interest in these topics.

The ATC Doublecut with Micah Woods: Recent Episodes

Asian Turfgrass Center