The ATC Doublecut with Micah Woods Asian Turfgrass Center

Maggie Reiter joined me to discuss how the start (and end) of the turfgrass maintenance season might be predicted. When is spring green-up? When does the season end? 
We discussed, and showed charts of growth potential and temperature, from this post: https://www.asianturfgrass.com/post/maps-of-average-temperatures-in-the-usa/The Sunday Lawn Care plansWe discussed the article "An examination of turfgrass species use on golf course putting greens" by Brosnan et al., which you can read, and see the maps of species use, at: https://doi.org/10.1002/cft2.20160The 15th International Turfgrass Research Conference will be held in July 2025 at Karuizawa, Japan: https://itrc2025.turfsociety.com/See our previous conversation about ecoregions at: https://www.youtube.com/watch?v=TP3XmNyDN6sBlack sand topdressing in Iceland to increase temperature: https://www.asianturfgrass.com/post/turfgrass-mystery-the-case-of-the-greener-grass/
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/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter

Bill Kreuser, Ph.D., president of GreenKeeper, joined me to discuss the new water resource planning tools in GreenKeeper, along with disease risk, PGRs, soil surfactants, and weather data.
See more about these tools at the GreenKeeper app: https://www.greenkeeperapp.com/Irrigation posts at the ATC website: https://www.asianturfgrass.com/tag/irrigation/
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/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter

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-gEATC2x episode with T-Jay about management of the greens: https://youtu.be/NJwc7XJQRGkBobble test rating scale: https://www.asianturfgrass.com/post/bobble-test-rating-scale/MSU Turfgrass Information File database: https://tic.msu.edu/databasehttps://www.asianturfgrass.com/post/green-sweepers-that-work-beautifully/Cleaning aerification cores the easy way in Japan: https://youtu.be/yv26e9rqwBwhttps://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/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter

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/LHEs7vT2hfURead 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/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter

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/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter

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.
P & Poa with Bob Raley is this post https://www.asianturfgrass.com/post/no-poa-after-16-years/ and this video https://youtu.be/s90tIstilbwThe time component of #MLSN post is https://www.asianturfgrass.com/post/the-time-component-of-soil-test-interpretation/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/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter