A month ago Joe Gulotti and I walked the fairways and greens of the Montchanin Course at Dupont Country Club. I wrote a blog post about that, and we discussed my visit in this episode.

Blog post: https://www.asianturfgrass.com/post/a-visit-to-the-talking-greenkeeper/
The Talking Greenkeeper podcast: https://podcasts.apple.com/us/podcast/the-talking-greenkeeper/id1435947281

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Get ATC newsletters at https://www.asianturfgrass.com/newsletter/
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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

You can sometimes, perhaps more often than you would think, find soil under good turf to have lower nutrient content than does soil under poor quality turf. In this episode, I explain why that is, what the implications of this phenomenon are, and what you can do about it.

• This blog post has all the details on the turf (and soil) paradox: https://www.asianturfgrass.com/post/turf-paradox/
• Henry Qu and I discussed learning, Bayesian analysis, and more in this engaging conversation: https://youtu.be/o4Y4xJt0stU?si=2jQevp6CqKPWR1gi

• Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
• Get ATC newsletters at https://www.asianturfgrass.com/newsletter/
• 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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

I discuss small plot university research with fixed treatments vs. golf course and sports turf maintenance with treatments that vary, and consider which results we should trust more. I also discuss the bobble test after 270 rounds, mention that core sweepers are a nice machine, and explain how I estimate N harvested in creeping bentgrass clippings.

Posts discussed and relevant links include:

• https://www.asianturfgrass.com/post/ball-roll-after-270-rounds/
• Short bobble test video with T-Jay Creamer: https://youtu.be/Y2Fbw8Ks-gE
• ATC2x episode with T-Jay about management of the greens: https://youtu.be/NJwc7XJQRGk
• Bobble test rating scale: https://www.asianturfgrass.com/post/bobble-test-rating-scale/
• MSU Turfgrass Information File database: https://tic.msu.edu/database
• https://www.asianturfgrass.com/post/green-sweepers-that-work-beautifully/
• Cleaning aerification cores the easy way in Japan: https://youtu.be/yv26e9rqwBw
• https://www.asianturfgrass.com/post/nitrogen-harvested-in-clippings-calculation-update-for-2024/

• Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
• Get ATC newsletters at https://www.asianturfgrass.com/newsletter/
• 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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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. 

• We discussed this post: https://www.asianturfgrass.com/post/the-best-golfing-destination-in-asia/
• 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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

• 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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

• 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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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/ 

See also: 

• PACE Turf climate appraisal, https://www.paceturf.org/memberedition/weather 
• The MLSN cheat sheet, https://www.asianturfgrass.com/post/new-mlsn-cheat-sheet/ 
• The Global DLI Shiny App, https://asianturfgrass.shinyapps.io/global_dli/ 
• Watch this episode at https://youtu.be/sMfP5icXHoI
• Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/ 
• Get turfgrass management information and decision support tools at https://www.paceturf.org/ 
• See the ATC newsletters at https://subscribepage.com/atc_newsletters 
• Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/
• Follow on Twitter at https://twitter.com/asianturfgrass

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

I discussed an approach to turfgrass management that involves considering the current turfgrass conditions and then deciding what to do. 

• Read about a backwards approach to greenkeeping: https://www.asianturfgrass.com/post/working-backwards-in-turfgrass-maintenance/ 
• Reactive vs. proactive greenkeeping: https://www.asianturfgrass.com/post/is-reactive-better-than-proactive/ 
• Watch this episode at: https://youtu.be/ZfRteetLeV0
• See the ATC newsletters at https://subscribepage.com/atc_newsletters 
• 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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

Chris Chase and I discussed zoysiagrass on putting greens and why one would use it. The post we talked about is https://www.asianturfgrass.com/post/zoysia-on-putting-greens-why/ 

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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

I describe what  we can learn from looking at five years of Mehlich 3 soil test phosphorus results from golf course putting greens, how to calculate the turfgrass speedo in a standard way, rather than in a chaotic way, and recommend an episode of the Cornell Turfgrass Show that asks if soil testing is the answer to all your problems.

These are the links to posts and videos mentioned in the show:

• https://www.asianturfgrass.com/post/mehlich-3-soil-test-p-in-sand-rootzones/
• https://www.asianturfgrass.com/post/spring-growth-flush/
• https://www.asianturfgrass.com/post/soil-testing-cornell-turfgrass-show/
• https://youtu.be/LHEs7vT2hfU

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Get ATC newsletters at https://www.asianturfgrass.com/newsletter/
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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

• 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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

• 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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

T-Jay Creamer joined me to discuss bentgrass & Poa annua (bent-Poa) management with a surprisingly low annual N rate, almost no use of PGRs, and no aeration (other than occasional needle tining) for more than two years. The results surprise me, and they may surprise you too.

We discussed this blog post about the turf speedo: https://www.asianturfgrass.com/post/turf-speedo-looks-like-this/

Follow T-Jay on X at https://x.com/TJayC17

• Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
• Get ATC newsletters at https://www.asianturfgrass.com/newsletter/
• 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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

I discuss two presentations from the ATPI conference in Galway, Ireland, how one might think about soil "deficiencies" when doing soil test interpretation, and discuss my tissue testing manifesto.

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

• 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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

• 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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

I discuss the 7 question, 2 minute survey, about soil sampling procedures for turfgrass, and I explain why this is an important topic that I've been paying more attention to. 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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

In this episode, I discuss sixteen year old bentgrass greens that have also gone sixteen years without  P fertilizer. The greens are also free of Poa annua. Then I discuss how fertilizer recommendations made from soil tests are a lot more precise if the time duration over which the fertilizer is being recommended is considered explicitly. And I explain why, when measuring #ClipVol, you will get value from annual totals too.

1. P & Poa with Bob Raley is this post https://www.asianturfgrass.com/post/no-poa-after-16-years/ and this video https://youtu.be/s90tIstilbw
2. The time component of #MLSN post is https://www.asianturfgrass.com/post/the-time-component-of-soil-test-interpretation/
3. The annual clipping yield post is https://www.asianturfgrass.com/post/the-annual-and-year-to-date-yield/ and links to this video https://youtu.be/8DdekceL9jE

• Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
• Get ATC newsletters at https://www.asianturfgrass.com/newsletter/
• 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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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/

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

Jim Huntoon joined me from Horry-Georgetown Technical College to discuss overseeding and the hows and whys of this common practice on warm-season turf that goes dormant in winter.

We discussed these two blog posts:
- https://www.asianturfgrass.com/post/optimum-overseeding-time-windows/
- https://www.asianturfgrass.com/post/zoysia-beats-bermuda-on-some-greens/

You can see my slides and handout from the Palmetto GCSA Education Meeting at this link: https://www.asianturfgrass.com/seminar/palmetto-2024/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Get ATC newsletters at https://www.asianturfgrass.com/newsletter/
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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/

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

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/