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ATC Office Hours

Asian Turfgrass Center

18 episodes

4 days ago

I discuss technical turfgrass topics with turfgrass managers, scientists, greenkeepers, and whoever drops by the ATC office hours. There's a lot of talk about the work done to create playing surfaces for golf, and also about growing grass for sporting surfaces of all sort, and also some talk of lawns.

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Natural Sciences

All content for ATC Office Hours is the property of Asian Turfgrass Center and is served directly from their servers with no modification, redirects, or rehosting. The podcast is not affiliated with or endorsed by Podjoint in any way.

I discuss technical turfgrass topics with turfgrass managers, scientists, greenkeepers, and whoever drops by the ATC office hours. There's a lot of talk about the work done to create playing surfaces for golf, and also about growing grass for sporting surfaces of all sort, and also some talk of lawns.

Show more...

Natural Sciences

Episodes (18/18)

ATC Office Hours

Pesticide-free turf management with Thomas Pihl, Mads Andersen, and Martin Nilsson

Thomas Pihl, Mads Andersen, and Martin Nilsson joined ATC Office Hours to discuss the challenges, techniques, successes, and failures involved with pesticide-free turfgrass management in Denmark.

Turf Without Borders show page: https://turfwb.asianturfgrass.com/
ATC soil tests: https://www.asianturfgrass.com/project/soil-tests/
PACE Turf tour: https://www.paceturf.org/tour
ATC newsletters: https://www.asianturfgrass.com/newsletter/

1 week ago

1 hour 54 minutes

ATC Office Hours

Fungicide use intensity, the soil microbiome, and disease severity with Dr. Ming-Yi Chou

Dr. Ming-Yi Chou joined me for a short discussion about this topic at the ITRC. Now we discuss this on ATC Office Hours and answer a few questions.

For more, see:
- https://www.asianturfgrass.com/post/fungicides-and-disease-intensity/
- https://doi.org/10.1128/aem.01771-24
- Tour de Fungus 2022 https://youtube.com/shorts/x36-KkZ_VFo?si=GNLNsCtRFvUqTQl9

Turf Without Borders show page: https://turfwb.asianturfgrass.com/
ATC soil tests: https://www.asianturfgrass.com/project/soil-tests/
PACE Turf tour: https://www.paceturf.org/tour

3 months ago

1 hour 31 minutes

ATC Office Hours

2024 #OM246 review with Chris Tritabaugh

Join me, along with Chris Tritabaugh from Hazeltine National GC, as we review autumn soil test results. We especially look at the #OM246 total organic material results, and discuss those in the context of maintenance work done, changes in the test results from past years, and most importantly, the relation of the tests to putting green performance.

This video shows how to measure sand amounts: https://youtu.be/6LurONpyg5M?si=Von0kewt3gzi4wme
This OM246 calculator finds the OM accumulation rate: https://asianturfgrass.shinyapps.io/om246/
Find the climate appraisal form and more about GP at https://www.paceturf.org/
Sign up for ATC newsletters at https://www.asianturfgrass.com/newsletter/
About textbook N rates https://www.asianturfgrass.com/post/i-was-surprised-to-read-this-about-nitrogen-coring-and-sand/
Summer cultivation and summer bentgrass decline https://www.asianturfgrass.com/post/hollow-tine-solid-tine-both-fail-alleviate-summer-bentgrass-decline/

10 months ago

2 hours 33 minutes

ATC Office Hours

ATC Office Hours: growth ratio, measurement units, & turf math with Jason Haines & Bjarni Hannesson

Jason and Bjarni joined me to talk about some useful turfgrass math, especially the turfgrass growth ratio, which you can read more about at https://www.asianturfgrass.com/tag/growth-ratio/

Find more infomation at PACE Turf: https://www.paceturf.org/
And at the ATC website: https://www.asianturfgrass.com/

1 year ago

2 hours 13 minutes

ATC Office Hours

Autumn #OM246 review with "the guy who doesn't do maintenance Mondays"

For the third consecutive autumn, Chris Tritabaugh joined me to review the OM246 (total organic material by depth) test results from the greens at Hazeltine National Golf Club. We discussed playing conditions, maintenance work, and testing.

Here are some links.

Chris's Substack: https://ctunderscoreturf.substack.com?utm_source=navbar&utm_medium=web&r=dakt8
ATC website: https://www.asianturfgrass.com/
ATC's OM246 page (with link to sampling recommendations): https://www.asianturfgrass.com/project/om246/
PACE Turf: https://www.paceturf.org/
Tim VanLoo's article on "Organic matter accumulation in sand-based [sports field] rootzones:" https://sportsfieldmanagementonline.com/2010/08/02/organic-matter-accumulation-in-sand-based-rootzones/4463/
Tim VanLoo's thesis about OM and OM testing on sand-based sports fields: https://d.lib.msu.edu/etd/39253/OBJ/view
My report about composite soil sampling for turfgrass: https://www.asianturfgrass.com/publication/woods-2020-sampling/

1 year ago

2 hours 43 minutes

ATC Office Hours

Firm bentgrass greens and OM management with Richard Forsyth

Richard Forsyth is the director of courses at Royal Melbourne Golf Club. We discussed playing conditions, maintenance work, and grass types in relation to production of firm putting surfaces.

Chris Tritabaugh and Doug Soldat also spoke about putting green firmness in this podcast: https://open.substack.com/pub/ctunderscoreturf/p/doug-soldat

A note about soil surfactants: https://www.asianturfgrass.com/post/what-do-wetting-agents-really-do/

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
See ATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter
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/

2 years ago

1 hour 41 minutes

ATC Office Hours

Championship conditions discussion with Eric Johnson and MLSN, ClipVol, & OM246

Eric Johnson joined from his office at Chambers Bay to discuss everyday golfing conditions, championship playing surfaces, and workflow using techniques such as clipping volume (#ClipVol), total organic material testing by depth (#OM246), and nutrient supply using #MLSN.

You can find Eric on Twitter at https://twitter.com/altshot2

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/

2 years ago

2 hours 16 minutes

ATC Office Hours

Why are we cultivating so much? Soil organic matter with Dr. Roch Gaussoin

Dr. Roch Gaussoin, professor at the University of Nebraska-Lincoln, joined me to discuss cultivation of golf course turf, sand topdressing, soil organic matter testing, and the topic of soil organic matter/material management in general.

2 years ago

1 hour 33 minutes

ATC Office Hours

Autumn 2022 OM246 review with Chris Tritabaugh

Total organic material testing (OM246) can be used to calibrate the amount of sand and cultivation required to produce high performance putting surfaces. Chris Tritabaugh and I discussed the most recent results from tests conducted at Hazeltine National Golf Club.

2 years ago

1 hour 48 minutes

ATC Office Hours

MLSN and soil test interpretation on bentgrass and Poa annua with Jackie Guevara

Jackie Guevara did an experiment that compared no P or K fertilizer, those elements as recommended by MLSN, and those elements as recommended by SLAN. The results? MLSN and SLAN were both better than nothing. But MLSN used a lot less fertilizer.

3 years ago

2 hours 7 minutes

ATC Office Hours

Golf turf playability with Carl Schimenti: green speed, firmness, smoothness and trueness of roll

Carl is a competitive golfer and a turfgrass researcher. We had a long conversation about the topic of playability of surfaces. What is it, how is it measured, can it be measured, and how might it be managed.

3 years ago

2 hours 15 minutes

ATC Office Hours

No change in soil OM after sand topdressing just once in a year, with Andrew McDaniel

Total organic material by depth (#OM246) measurements have been made at Keya GC for six years. We discussed these results and how the organic matter has remained constant over time despite minimal sand topdressing and only 1 hollow-tine aerification in six years.

3 years ago

1 hour 21 minutes

ATC Office Hours

Leaf nutrient analyses (tissue tests) with Doug Soldat

Doug Soldat joined me to discuss tissue tests for turfgrass, and how we might make use of them (or not) to make decisions about fertilizer.

3 years ago

1 hour 8 minutes

ATC Office Hours

Chris Tritabaugh's blog, disruption, and playability

Chris Tritabaugh joined me to discuss his recent blog posts about what putting green disruption is, and how he has been working to minimize it through measurement of green speed and green smoothness and trueness.

3 years ago

2 hours 1 minute

ATC Office Hours

Turfgrass growth potential (GP) with Larry Stowell from PACE Turf

Larry Stowell joined me to discuss the temperature-based turfgrass growth potential --- where it comes from and how it is used. We also discussed a bit about MLSN and the interaction of GP with MLSN.

3 years ago

1 hour 4 minutes

ATC Office Hours

Nutrient requirements of Poa annua and MLSN with Ben Brace

Ben Brace and I discussed how we expect MLSN to work for Poa annua, and if there might be some differences compared with creeping bentgrass. We discussed biostimulants, soil sampling, potassium and stress, phosphorus and bentgrass vs. Poa competition, and much more.

3 years ago

2 hours 14 minutes

ATC Office Hours

Tom Cook on lawn ecology, bentgrass, and climax species in the Pacific Northwest

Tom Cook led the turfgrass program at Oregon State University for 31 years and was my professor for many turfgrass classes when I was a student there in the 1990s. Tom studies what grows in lawns, and how the starting conditions, and the management practices, influence what the lawn turns out to be sometime in the future. We discuss this, and golf course turf, in this episode.

3 years ago

1 hour 27 minutes

ATC Office Hours

OM246 report review with Chris Tritabaugh

Chris Tritabaugh, the golf course superintendent at Hazeltine National Golf Club in Minnesota, discusses an OM246 report for samples collected in October 2021. This is total organic material by depth, and knowing the results of this test provide valuable information to optimize golf course playability while ensuring one is applying just the right amount of sand.

For more about this, see the OM246 project page on the ATC website.

3 years ago

2 hours 31 minutes

ATC Office Hours

I discuss technical turfgrass topics with turfgrass managers, scientists, greenkeepers, and whoever drops by the ATC office hours. There's a lot of talk about the work done to create playing surfaces for golf, and also about growing grass for sporting surfaces of all sort, and also some talk of lawns.