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PODCAST

The ATC Doublecut with Micah Woods

Asian Turfgrass Center

I discuss ATC blog posts, with supplementary information, stories, and the reasons why I thought the topic was worth writing about, and worth reading about. Thus, a doublecut of these topics. This covers grass selection, playability, and all the work done to create a certain type of turfgrass surface.

sports golf

All Episodes

38:19

The growth ratio for consistent growth and nitrogen...

The ATC Doublecut with Micah Woods ·

2023/08/10

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_newslettersTurfgrass information and decision-making tools at https://www.paceturf.org/PACE Turf YouTube channel at

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81:14

Turf Math with Bjarni Hannesson and Jason Haines

The ATC Doublecut with Micah Woods ·

2023/08/07

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_newslettersTurfgrass information and decision-making tools at https://www.paceturf.org/PACE Turf YouTube channel at https://www.youtube.com/user/paceturfATC's YouTube

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31:45

Using morning and afternoon VWC measurements to find...

The ATC Doublecut with Micah Woods ·

2023/07/31

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

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23:55

A soil water content turf hack

The ATC Doublecut with Micah Woods ·

2023/07/25

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

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34:41

I prefer sand topdressing amounts expressed as a depth

The ATC Doublecut with Micah Woods ·

2023/07/21

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

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34:19

Golf in Japan: maintenance staff numbers, rounds...

The ATC Doublecut with Micah Woods ·

2023/07/11

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:

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34:24

Grass gets this much PAR light in full sun (no clouds)

The ATC Doublecut with Micah Woods ·

2023/07/02

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

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39:16

Coring three times a year with half-inch tines on...

The ATC Doublecut with Micah Woods ·

2023/06/26

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

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38:50

The shade effect of clouds, photosynthetically active...

The ATC Doublecut with Micah Woods ·

2023/06/24

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:

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45:36

It's tough to manage cool-season putting greens when...

The ATC Doublecut with Micah Woods ·

2023/06/16

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:

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61:31

Transition zone putting greens, light, speed, zoysia,...

The ATC Doublecut with Micah Woods ·

2023/05/31

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/ArkansasTurfHere 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/-

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61:35

Reflections on growth rate, nitrogen, and disruption,...

The ATC Doublecut with Micah Woods ·

2023/05/25

I wrote a blog post that lists ten things I reflected on one day in relation to how I had changed my thinking about how much N, growth, and sand topdressing and core aerification are required to maintain high performance turfgrass surfaces. Chris Tritabaugh joined me to discuss this.Blog post with the ten points: https://www.asianturfgrass.com/post/reflections-on-growth-rate-and-nitrogen/Chris's podcast & newsletter: https://ctunderscoreturf.substack.com/ATC Office Hours discussion with

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51:30

A soil test extravaganza

The ATC Doublecut with Micah Woods ·

2023/05/21

This episode discusses three recent posts about soil testing (soil nutrient analyses), from what happens at the lab, to micronutrient test results.- Brookside Lab video tour: https://www.asianturfgrass.com/post/behind-the-scenes-look-at-soil-testing/- The video: https://youtu.be/PyL2bfdiBdE- Converting between different extraction methods: https://www.asianturfgrass.com/post/converting-between-soil-test-extraction-methods/- Manganese and the MnAI:

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114:57

Blog post bombs of 2020 with The Talking Greenkeeper

The ATC Doublecut with Micah Woods ·

2023/05/14

Joe Gulotti joined me to go through the list of blog posts that got the fewest views on the ATC website in 2020. There was turf tourism, turf hacks, soil sampling, photosynthetically active radiation, four wheelers, and a lot of turf talk as we went through the list.To get the ATC blog by email: https://subscribepage.com/atc_blog_emailWe discussed this post: https://www.asianturfgrass.com/post/ten-posts-no-one-read-last-year/The Talking Greenkeeper podcast:

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47:06

Terminology of turfgrass soils: total organic...

The ATC Doublecut with Micah Woods ·

2023/05/11

Brian Whitlark is the West region director of the USGA Green Section. We talked about total organic material testing of turfgrass soils. This is distinct from soil organic matter testing. Soil organic matter is measured on material that has already passed a 2 mm sieve and thus is no larger than a grain of sand. This sieving removes much of the thatch and mat and living plant material from the sample.There's more about this, including definitions of various items related to this, in

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25:39

Potassium fertilizer could increase dandelions by 20x

The ATC Doublecut with Micah Woods ·

2023/05/06

Dandelion (Taraxacum officinale) abundance can be increased by potassium (K) and lime applications. Adding K fertilizer when it is not needed by the grass, or adding lime to increase the pH when the grass does not require such an adjustment, could lead to increased competitiveness of dandelions in that sward.Some links for this episode include:- My dandelions and potassium post: https://www.asianturfgrass.com/post/potassium-dandelions/- Tilman et al.'s article on biological weed control of

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30:47

Using the standard growth potential (GP) equation...

The ATC Doublecut with Micah Woods ·

2023/04/30

I used to tell people that GP is just a number, and if they wanted to modify it to fit the way grass grows at their location, then go ahead and do so. I don't say that anymore. Instead, I recommend using the standard equation. Why? To facilitate direct comparisons between sites, knowing that everyone has used the same equation.I discussed this blog post: https://www.asianturfgrass.com/post/regarding-gp-and-adjustments/PACE Turf's updated listing of turf diagnostic labs is available at:

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30:30

Is nitrogen rate connected to surface area disruption?

The ATC Doublecut with Micah Woods ·

2023/04/21

March in Japan is the start of cherry blossom season, and on golf courses there is a lot of aerification. I've noticed that golf courses in Japan generally don't do as much surface area removal as is common in some other parts of the world. But the surfaces can still perform. I discuss this in this episode, and have a look at this post from the ATC blog: https://www.asianturfgrass.com/post/springtime-golf-course-maintenance-in-japan/Read more about all kinds of turfgrass topics at

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21:22

All about the growth ratio equation for...

The ATC Doublecut with Micah Woods ·

2023/04/10

I explained what the growth ratio is and showed the equation used to calculate growth ratio. This simple equation takes the measured clipping volume and adjusts it by the temperature. Jason Haines developed the growth ratio and has found it quite useful. You can see that equation in this ATC blog post: https://www.asianturfgrass.com/post/the-growth-ratio-equation/Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Find turfgrass information and decision-making

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35:55

Growth ratio to predict clipping volume for any time...

The ATC Doublecut with Micah Woods ·

2023/03/31

One of the common questions about #ClipVol is "what is a normal amount of clippings to get?" By using the growth ratio, it's possible to account for the temperature conditions through the year and from that calculate how many clippings would be normal for any day in the year.The specific blog post discussed was https://www.asianturfgrass.com/post/what-should-my-clipvol-be/You can see the growth ratio equation in this post: https://www.asianturfgrass.com/post/the-growth-ratio-equation/Other

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202 results

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