The ATC Doublecut with Micah Woods

John Petrovsky is manager of USGA Green Section Education. He is also the host of the USGA Green Section podcast. We discussed a recent episode about GvX that had an especially insightful quote from Chris Tritabaugh. Also, the U.S. Open, championship golf, clipping volume, and even a bit about MLSN.Links for topics we discussed include:USGA Green Section Record free subscription https://www.usga.org/content/usga/home-page/course-care/green_section_record.htmthe golf course shown with the Eiffel Tower view is Golf de Saint-Cloud, https://www.golfdesaintcloud.com/blog post about GvX and Chris Tritabaugh quote: https://www.asianturfgrass.com/post/any-kind-anywhere-any-level/ GvX post about zero-handling problem: https://www.asianturfgrass.com/post/gvx-clippings/ the SI calculator for soil test levels at any probability https://asianturfgrass.shinyapps.io/turfsi/https://www.asianturfgrass.com/post/gvx-clippings/ OM246 example reports with tables of normal values by species https://www.asianturfgrass.com/project/om246/ the GSS summary article https://doi.org/10.17605/OSF.IO/RG49P how much OM is too much https://www.asianturfgrass.com/post/how-much-om-is-too-much/Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Find a suite of decision-making tools at https://www.paceturf.org/Get free ATC newsletters at https://www.asianturfgrass.com/newsletter/ Turf Without Borders show page: https://turfwb.asianturfgrass.com/

Geoff Fenn and I discussed the use of the turfgrass growth potential (GP) in the UK, optimum temperatures, the GvX, clipping volume, and more in this episode that started with a look at this blog post:https://www.asianturfgrass.com/post/number-between-1-0-using-the-turfgrass-growth-potential/See also this on GP and adjustments: https://www.asianturfgrass.com/post/regarding-gp-and-adjustments/All posts tagged "growth potential:" https://www.asianturfgrass.com/tag/growth-potential/Connect with Geoff on LinkedIn (https://www.linkedin.com/in/geoff-fenn-aa2ba242/) or X (https://x.com/Geoff_Fenn)Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Find a suite of decision-making tools at https://www.paceturf.org/Get free ATC newsletters at https://www.asianturfgrass.com/newsletter/

I discussed some green speed and green firmness data from measurements made at the Sky RKB Ladies Classic tournament, and I explained why the geometric mean rather than the arithmetic mean can be especially useful (and safe) when dealing with soil nutrient data.Green speed change from morning to afternoon: https://www.asianturfgrass.com/post/speed-drop-morning-to-afternoon/The geometric mean as the central tendency (average) for soil nutrient data: https://www.asianturfgrass.com/post/geometric-mean-as-central-tendency-for-soil-nutrient-data/Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Find a suite of decision-making tools at https://www.paceturf.org/Get free ATC newsletters at https://www.asianturfgrass.com/newsletter/ Find Turf Without Borders at https://turfwb.asianturfgrass.com/More about ATC soil tests at https://www.asianturfgrass.com/project/soil-tests/

In this episode I picked some of my favorite photos from 2024, and I remembered what I learned from them. From roots, layers, OM246, zoysia greens, and drought, to loupes, turf farms, compost, and bermudagrass.I discussed this post: https://www.asianturfgrass.com/post/flights-favorite-turf-photos-2024/Here's the sand vs. compost ball bounce video: https://www.youtube.com/watch?v=r1LV77z_ZiwRead more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Find a suite of decision-making tools at https://www.paceturf.org/Get free ATC newsletters at https://www.asianturfgrass.com/newsletter/ Find Turf Without Borders at https://turfwb.asianturfgrass.com/More about ATC soil tests at https://www.asianturfgrass.com/project/soil-tests/

There have been a lot of conversations about soil water content and surface hardness (firmness). I discuss some measurements that I have made, and suggest some of the old posts on the ATC website that discuss this topic.Specific posts discussed include:https://www.asianturfgrass.com/post/measuring-surface-hardness-on-greens-fairways-and-approaches/https://www.asianturfgrass.com/post/relationship-between-soil-water-and-turfgrass-surface-hardness/https://www.asianturfgrass.com/tag/surface-hardness/Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Find a suite of decision-making tools at https://www.paceturf.org/Get free ATC newsletters at https://www.asianturfgrass.com/newsletter/Listen to the ATC podcast network https://podcasts.asianturfgrass.com/ More about ATC soil tests at https://www.asianturfgrass.com/project/soil-tests/

Jason came up with the GvX idea in a flash of inspiration that he describes here. This is the actual growth of the grass compared to the expected growth of the grass, and it has surprising practical implications. We discussed the development and use of the #TurfGvX in this episode.We discussed this blog post: https://www.asianturfgrass.com/post/explaining-gvx/See the GvX screencast video at https://youtu.be/mRJcEhOyxPARead more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Find a suite of decision-making tools at https://www.paceturf.org/Get free ATC newsletters at https://www.asianturfgrass.com/newsletter/ More about ATC soil tests at https://www.asianturfgrass.com/project/soil-tests/

Achieving the lowest possible #OM246 total organic material value is not desirable, because the living plant material is part of the OM measured with this method. I discussed this post: https://www.asianturfgrass.com/post/om246-measures-living-om-too/ @keyakeeper469  and I discussed 8 years of OM246 in https://youtu.be/8B3FQhvSIdIOM246 project page https://www.asianturfgrass.com/project/om246/Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Find a suite of decision-making tools at https://www.paceturf.org/Get free ATC newsletters at https://www.asianturfgrass.com/newsletter/Listen to the ATC podcast network https://podcasts.asianturfgrass.com/ More about ATC soil tests at https://www.asianturfgrass.com/project/soil-tests/

A common way to calculate average daily temperature is to take the sum of the daily maximum and daily minimum temperatures, and to divide by two. A better statistical approximation of the average temperature is to take measurements made every hour and then to find the mean value of those continuous measurements. This blog post shows a comparison of the three methods for 2024 data at three locations: https://www.asianturfgrass.com/post/calculating-average-daily-temperature/Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Find a suite of decision-making tools at https://www.paceturf.org/Get free ATC newsletters at https://www.asianturfgrass.com/newsletter/ More about ATC soil tests at https://www.asianturfgrass.com/project/soil-tests/

Joe Gulotti joined me to discuss his new job, The Talking Greenkeeper, and the ten posts on the ATC website that no one (practically) read in 2024.This is the post that lists all the "bombs:" https://www.asianturfgrass.com/post/ten-posts-no-one-read-2024/The Talking Greenkeeper catalog is at https://podcasts.apple.com/us/podcast/the-talking-greenkeeper/id1435947281Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Find a suite of decision-making tools at https://www.paceturf.org/Get free ATC newsletters at https://www.asianturfgrass.com/newsletter/Listen to the ATC podcast network https://podcasts.asianturfgrass.com/ More about ATC soil tests at https://www.asianturfgrass.com/project/soil-tests/

Although turf research is often done with fertilizer treatments applied at constant rates and on a fixed calendar schedule, that way of supplying nutrients seems strange to me now. I explain why in this episode, and suggest a better method.We discussed this post: https://www.asianturfgrass.com/post/fertilizer-schedule-seems-strange-to-me-now/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 More about ATC soil tests at https://www.asianturfgrass.com/project/soil-tests/

I recommend 4 podcast episodes and one useful app that calculates sand topdressing amounts, then quickly discuss the top 10 new posts from the ATC website in 2024.Would you like to comment or have questions about this episode? Reply on Bluesky Here are topic links:- https://www.asianturfgrass.com/post/top-10-posts-2024/- https://www.asianturfgrass.com/post/the-rodney-lingle-system/- https://www.asianturfgrass.com/post/almost-like-a-seminar/- https://www.asianturfgrass.com/post/the-talking-greenkeeper-holiday-extravaganza/- https://www.asianturfgrass.com/post/om246-calculator-updated/- https://www.asianturfgrass.com/post/mlsn-and-lawns/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 More about ATC soil tests at https://www.asianturfgrass.com/project/soil-tests/

Green speed varies because of many factors. One of those factors is clipping volume. I discuss that relationship and give some advice for those getting started with clipping volume and wanting to know how to adjust it.We discussed this blog post: https://www.asianturfgrass.com/post/getting-started-with-clipping-volume/Potassium increases dollar spot? https://www.paceturf.org/memberedition/potassium-increases-dollar-spotThe 2025 International Turfgrass Research Conference: https://itrc2025.turfsociety.com/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 More about ATC soil tests at https://www.asianturfgrass.com/project/soil-tests/

Did you know there was a time when up to to 2 lbs N per 1000 square feet per growing month, the equivalent of 100 kg of actual N per ha per month, was a standard recommendation for putting green turf? I talk about this and some implications in this episode.The ATC post getting the double cut treatment is https://www.asianturfgrass.com/post/nitrogen-rate-as-a-pendulum-swing/I also took a look at the Historical Nitrogen Rates post from PACE Turf at https://www.paceturf.org/memberedition/historical-nitrogen-ratesRead 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 More about ATC soil tests at https://www.asianturfgrass.com/project/soil-tests/

Bill Kreuser from GreenKeeper joined me to discuss how much grass grows, the complicated problems involved when sand is mixed with clippings, growth regulator adjustments, leaf nutrient content, soil surfactant effect duration, and more. #ClipVolWe discussed the "Sand in clippings" post from the ATC website: https://www.asianturfgrass.com/post/sand-in-clippings/You can read more about our discussion of topics such as PGR and soil surfactant scheduling at https://www.greenkeeperapp.com/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 Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribeRegister for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

Frank Rossi, Ph.D. is the New York State extension turfgrass specialist at Cornell University. We talked about mentorship, potassium, turf nutrition, smoothness of putting greens, dogma, data, budgets, and more.Here are some links:- https://cals.cornell.edu/frank-s-rossi- New podcast, Turf Without Borders: https://turfwb.asianturfgrass.com/episodes/st-andrews-old-new-jubilee-with-jon-wood- https://doublecut.asianturfgrass.com/episodes/frank-rossi-and-i-discuss-what-ive-called-my-least-favorite-experiment-ever- https://www.asianturfgrass.com/post/do-you-have-an-idea-why-they-recommend/- Video with Dr. Rossi & I on smoothness and trueness of putting greens: https://youtu.be/xIlgspZfzbg?si=9iPeueL5Y16Uk5qv- https://www.asianturfgrass.com/post/five-different-ways-to-measure-smoothness-trueness-ball-roll/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 Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribeRegister for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

The PACE Turf growth potential equation has one variable (the actual air temperature) and two constants. The constants are optimum air temperature and a term for variance that controls the shape of the curve as the actual temperature moves away from the optimum temperature. It's a little more complicated than that, because the constants change depending on whether you are making the calculation for cool-season grass, warm-season grass, and on whether you are using the Fahrenheit temperature scale or the Celsius temperature scale.The blog post discussed is https://www.asianturfgrass.com/post/calculating-gp/PACE Turf climate appraisal forms at: https://www.paceturf.org/journal/climateMore about GP and the variance term at https://www.asianturfgrass.com/post/what-is-variance-in-growth-potential-equation/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 Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribeRegister for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

You can expect soil organic matter to be 5% nitrogen, and you can expect from 1 to 4% of that organic nitrogen to mineralize in one year. You can also calculate estimated daily mineralization and sum it to get weekly, monthly, and annual totals.The blog post discussed is: https://www.asianturfgrass.com/post/estimating-nitrogen-mineralization-an-example/Subscribe to the Turf Without Borders podcast: https://turfwb.asianturfgrass.com/subscribeRead 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 Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribeRegister for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

This episode introduces multiple experiments that have demonstrated a link between rapid measurement of clipping volume and the clipping yield. Clipping yield is typically expressed as dry weight per area. Links to the articles discussed are in the blog post.Blog post on Converting Clipping Volume to Dry Weight: https://www.asianturfgrass.com/post/converting-clipping-volume-to-dry-weight/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 Register for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

Leah Brilman, Ph.D., is the Director of Product Management & Technical Services for Seed Research by DLF. We discussed velvet bentgrass, creeping bentgrass, and browntop bentgrass, along with seed production and grass performance.The bentgrass posts at the ATC website are at this link: https://www.asianturfgrass.com/tag/bentgrass/To see the word cloud with all the most frequent tagged topics, go to: https://www.asianturfgrass.com/#tagsI've spoken about browntop bentgrass management in New Zealand with Grant Saunders: https://youtu.be/CNA7EfvPHusRead 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 Register for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.htmlRegister for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

Andrew McDaniel has been watching webinars to get education points, and some of these have been about management of soil organic matter on putting greens. We discussed a particular article and whether that method is something that seems reasonable today.The blog post we discussed is https://www.asianturfgrass.com/post/a-chance-to-update-my-advice/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 Register for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

Here are four specific things to look at with total organic material by depth (#OM246) test results. The blog post I discussed is this one: https://www.asianturfgrass.com/post/om246-reports-explained/The video in that post is https://youtu.be/wUtpJC1YPU0Read 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 Register for my Harrogate and San Diego seminars at these links:https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193https://www.btme.org.uk/continue-to-learn.htmlIf you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

Matteo Serena is the Senior Manager of Irrigation Research and Services for the USGA. We discussed drip irrigation, growth regulators and soil surfactants, water use, overseeding, and bermudagrass vs. zoysiagrass water use.We discussed this ATC blog post: https://www.asianturfgrass.com/post/zoysia-and-water-use/We also discussed these articles: - https://www.usga.org/content/usga/home-page/course-care/green-section-record/61/issue-15/measuring-and-comparing-the-water-requirements-of-warm-season-gr.html#- https://doi.org/10.2134/agronj2018.03.0148See this zoysia video with Dr. Kenworthy: https://youtu.be/R6ZXW85mm84Read 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 Register for my Harrogate and San Diego seminars at these links:https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193https://www.btme.org.uk/continue-to-learn.htmlIf you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

I checked the top episodes, discussed turf terminology, and discussed the 2025 GCSAA Outstanding Contribution Award winners Dr. Wendy Gelernter and Dr. Larry Stowell.The four posts discussed in this episode are:https://www.asianturfgrass.com/post/the-turf-gvx-growth-versus-expected/https://www.asianturfgrass.com/post/seven-minutes-of-outstanding-contributions/https://www.asianturfgrass.com/post/football-seminar-in-bangkok/https://www.asianturfgrass.com/post/top-atc2x-episodes/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 Register for my Harrogate and San Diego seminars at these links:https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193https://www.btme.org.uk/continue-to-learn.htmlIf you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

When the cool-season growth potential (GP) is lower than the warm-season GP, the difference between them (the ΔGP) will be negative. In this episode, I discuss ΔGP and three different ways to think of summer duration.I discussed this blog post: https://www.asianturfgrass.com/post/summer-assessment-with-delta-gp/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 If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

I wondered what NotebookLM could do, so I created a couple notebooks. One has the title “Global Soil Survey,” and in that notebook I uploaded articles and documents I've written about MLSN and the GSS. I let the model generate a few different audio summaries of this project. And I uploaded the text to A Short Grammar of Greenkeeping, and I let the model produce an audio summary of that book.Blog post: https://www.asianturfgrass.com/post/grammar-greenkeeping-turfgrass-growth-optimal-playing-surfaces/Google's NotebookLMGlobal Soil SurveyMLSN cheat sheetPACE Turf If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/

Grant Saunders is the course superintendent at Hamilton Golf Club in New Zealand. He has successfully overseen a green species conversion from Poa annua to browntop bentgrass (Agrostis capillaris). We discussed that, and the role of OM testing, and sand topdressing, and soil pH, and greenkeeping in New Zealand.Some links include:https://www.asianturfgrass.com/post/accumulation-soil-organic-material/https://hamiltongcmaintenance.blogspot.com/2018/06/poa-vs-browntop.htmlA "Cart Rides with Micah" episode from Hamilton Golf Club https://youtu.be/dWj-MO4UBW4?si=oF-rtC_BWTPEYZmBhttps://www.asianturfgrass.com/post/gp-as-proxy-for-season-length/https://www.asianturfgrass.com/post/new-mlsn-cheat-sheet/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

When you know the rate at which organic material is accumulating in the rootzone, you can adjust sand topdressing rates with more precision. You can also start to check how any changes in maintenance can have an effect on the accumulation rate.The blog post discussed is this one: https://www.asianturfgrass.com/post/inexorable-rise-soil-organic-matter/The Shiny app to calculate the accumulation rate is: https://asianturfgrass.shinyapps.io/om246/You can learn all about OM246 tests at https://www.asianturfgrass.com/project/om246/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

T-Jay Creamer is the golf course superintendent at Olympic View Golf Club in western Canada. He joined me to discuss tournament golf maintenance and the grammar of greenkeeping.We discussed this ATC blog post: https://www.asianturfgrass.com/post/two-weeks-in-august/T-Jay's Substack newsletter is https://ovgrounds.substack.com/He explained the green speed and smoothness annual summary in this post, discussed at the end of our podcast: https://ovgrounds.substack.com/p/chasing-the-numbers-2024-greens-speedUSGA video with Chris Tritabaugh about pinpoint precision at the U.S. Amateur https://youtu.be/FA9YLlKsdFERead 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

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/id1435947281Read 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/asianturfgrasscenterListen 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/

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=2jQevp6CqKPWR1giRead 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

Independent turfgrass researcher John Dempsey, Ph.D., joined me to discuss evaluating treatment effects and the importance of having a good control. We talked about diseases, nutrition, and this blog post:https://www.asianturfgrass.com/post/problem-with-the-controls/Find John on X at https://x.com/J_J_DempseyRead 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

Dr. Henry Qu, partner and data scientist at Oxbridge Economics, joined me to talk about data analysis, and statistics, and how to try to learn things in turfgrass science. We discussed NTEP, posterior distributions, disease resistance, ANOVA, total organic material expectations by species, the process of learning, and much more.ATC blog post about surface organic material of putting greens: https://www.asianturfgrass.com/post/total-organic-matter-surface-putting-greens/Henry's 2023 CSSA presentation "On the Data Analysis of Small-Plot Field Trials in Turfgrass Science:" https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/148936NTEP, the National Turfgrass Evaluation Program: https://ntep.org/Oxbridge Economics: https://www.oxbridge-econ.com/aboutRead 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

Jon Wall, golf course superintendent at Shanqin Bay, joined me to discuss doing more work to make grass better, rather than doing less. And also about what I'd want everyone to do, which is doing the right amount of work for your property.We talked about many things, starting off with:Better turf conditions with more intensive maintenance blog post: https://www.asianturfgrass.com/post/doing-more-work/Our previous conversation about sustainable turfgrass management: https://youtu.be/hXtqiYOOq1E?si=8IVV-t06JVTqcfo6Infiltration rate: https://www.asianturfgrass.com/post/why-i-dont-worry-about-infiltration-rate/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

It's summer in the northern hemisphere, and the two items discussed in this episode provide guidance on managing turf when it has to survive through heat stress.From the ATC website, a 12 point list: https://www.asianturfgrass.com/post/catching-up-on-reading-heat-stress/From PACE Turf, the Heat Kills document: https://www.paceturf.org/member/Documents/0108.pdfRead 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

Carl Schimenti from Cornell University joined me to discuss intro to #MLSN explanations vs. using MLSN the way it is designed to be used. We also talked a lot about ball roll assessment using the #BobbleTest, and the USGA GS3 ball, and other methods.MLSN project page: https://www.asianturfgrass.com/mlsn/Daniel Palin with the MLSN test on The Talking Greenkeper: https://podcasts.apple.com/us/podcast/daniel-palin/id1435947281?i=1000647459615Blog post on one additional chatter of snaking event in three rolls: https://www.asianturfgrass.com/post/one-chatter-or-snaking-event-in-every-third-ball-roll/Linde et al. on "Comparing Three Methods to Measure Putting Green Trueness" https://doi.org/10.2134/itsrj2016.05.0332My video on How to measure the smoothness and trueness of golf course putting greens? https://youtu.be/Fg_aDTB-O10?si=ZA4rgU2A1SLACrJ5Bobble test rating scale: https://www.asianturfgrass.com/post/bobble-test-rating-scale/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

Soil P, pH, and salinity are a few things that likely vary by depth in your rootzone. I've started recommending that 20% of putting greens tested be done with a sample divided at the 5 cm depth. Send the lab a 0-5 cm and 5-10 cm depth sample from that green, rather than the standard 0-10 cm depth sample. I discussed this blog post: https://www.asianturfgrass.com/post/reconstructing-soil-p-from-disassembled-soil-samples/The MLSN page on the ATC site: https://www.asianturfgrass.com/mlsn/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

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/TJayC17Read 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/8DdekceL9jERead 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

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

Maggie Reiter joined me to reminisce about the grasses one can find at the back of the 7th green at Pebble Beach Golf Links, to consider soil test results for lawns, what the biggest problems are on lawns and whether solutions exists, and much more.Maggie is a Data Scientist at Sunday, https://www.getsunday.com/The blog post with the photo of grasses at Pebble Beach is: https://www.asianturfgrass.com/post/flights-turf-photos/We discussed EPA ecoregion maps, which you can read more about at https://www.epa.gov/eco-research/ecoregions and can see the especially detailed ones at https://www.epa.gov/eco-research/level-iii-and-iv-ecoregions-continental-united-statesThe original MLSN guidelines, first presented at the Bouyoucos Conference in 2012, are available at: https://www.paceturf.org/PTRI/Documents/201408_stowell_woods_mlsn.pdfMLSN calculations for micronutrients are here: https://www.paceturf.org/memberedition/mlsn-for-micronutrientsThe Carrow et al. article from 2004 on SLAN ranges is available at https://www.files.asianturfgrass.com/clarify3.pdfSoil test lab tour at Brookside Labs: https://youtu.be/PyL2bfdiBdERead 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/asianturfgrasscenterListen 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/

This is a follow-up to the episode last week when I mentioned that I was looking at snow outside, that the light would be ample for growth, but the temperatures were below freezing and thus temperature was limiting the growth. I discuss the new blog post that shows those light data.An example of ample DLI: https://www.asianturfgrass.com/post/an-example-of-ample-dli/The USGA Green Section Record with the fine podcast, frost research, Pat Jones article, and much more: https://www.asianturfgrass.com/post/breaking-the-ice/The  @TurfgrassEpistemology  episode with Travis Shaddox on K and soil testing: https://www.youtube.com/live/aSZwz75aIig?si=Ip9JcBo41Poy_RasRead 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

The growth potential converts air temperature to a 0 to 1 (or 0 to 100%) scale. Of course, there are a lot more things that affect actual growth, including light, nitrogen, and water. I discuss these and why I'm not so convinced that adding a light factor to GP makes it more useful.The blog post discussed here is https://www.asianturfgrass.com/post/light-and-gp-again/This calculator finds full sun PPFD and DLI for any location on any date: https://asianturfgrass.shinyapps.io/ppfd_by_time/Park Nobel's environmental productivity index is described in this article: https://esajournals.onlinelibrary.wiley.com/doi/abs/10.2307/1938497It's also mentioned in his text book Physiochemical and Environmental Plant Physiology: https://www.sciencedirect.com/book/9780128191460/physicochemical-and-environmental-plant-physiologyTravis Shaddox's Turfgrass Epistemology channel: https://www.youtube.com/@TurfgrassEpistemologyRead 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

This episode goes through a lot of updates from both the ATC and the PACE Turf websites. Topics discussed include OM246, the problem with frequent soil testing, the problem when getting soil tests done by some fertilizer companies, normal N content of grass leaves, and coefficient of uniformity (Cu) of rootzone sands.More information and and decision-making tools at https://www.paceturf.org/, this episode's sponsor.Blog posts discussed include:https://www.asianturfgrass.com/post/new-om246-video-script/ which corresponds with this video https://youtu.be/Tc8dcBBt1zchttps://www.asianturfgrass.com/post/nutrient-harvest-turf-math/https://www.asianturfgrass.com/post/testing-mlsn/https://www.asianturfgrass.com/post/couple-problems-with-year-round-soil-nutrient-analysis/https://www.asianturfgrass.com/post/five-down-one-to-go/Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Get ATC newsletters at https://www.asianturfgrass.com/newsletter/PACE Turf YouTube channel at https://www.youtube.com/user/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter

Adam Moeller joined me to discuss how to manage greens in 2024. We talked about his research at Purdue University on sand and bentgrass and coring and N rates, and about clipping volume and OM246 testing and how we might manage turf and look at sands today.This post got the Doublecut introduction, about how to figure out an estimate of N harvest from clippings, and how to systematically adjust N rate based on turfgrass growth ratio: https://www.asianturfgrass.com/post/growth-ratio-nitrogen-harvest-and-fertilizer-adjustment/Adam's website is https://www.moellerconsultingllc.com/He posted this chart on X showing a particle size distribution curve: https://x.com/AdamMoeller/status/1756301012392960446Here's another example of a curve from the PACE Turf gallery: https://www.paceturf.org/gallery/detail/s-curve-with-sand-particle-size-of-topdressing-sand-and-om2-sandWe discussed the 2016 article with Todd Lowe on Managing Organic Matter in Putting Greens and the sand topdressing recommendations in that article: https://gsrpdf.lib.msu.edu/?file=/article/moeller-lowe-managing-11-4-16.pdfRead 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

Brian joined me to discuss his recommended soil sampling strategy for an 18 hole golf course. We also discussed what he teaches in a 2 hour GCSAA seminar on physical testing.Mavis Consulting website with lots of resources: http://mavisconsulting.com/This blog post on soil sampling got the Doublecut treatment: https://www.asianturfgrass.com/post/composite-samples-1/Brian's article on turf testing techniques from GCM magazine: https://www.gcmonline.com/course/maintenance/news/turf-testing-techniquesRead 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 channel at https://www.youtube.com/asianturfgrasscenterListen 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/

The 2018 article by Bryan and Tyler Hopkins, "Carbon: the next frontier in fertilization?" concludes that we "should not be fertilizing with carbon." Bryan joined me to discuss this article.The blog post about their article remains one of the top viewed on the ATC website, six years after publication: https://www.asianturfgrass.com/post/is-carbon-the-next-frontier-in-fertilization/Original article from Crops & Soils: https://doi.org/10.2134/cs2018.51.0307My calculation of how much carbon is in the soil: https://www.asianturfgrass.com/post/how-much-carbon-and-humus-are-in-the-soil/Dr. Carrow's calculations of humic material in the soil: https://www.asianturfgrass.com/post/asking-the-right-questions/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

Zoysiagrass can seed year round when the conditions are right. In this episode, I discuss what those conditions are, share some tools for getting a site-specific sand topdressing estimate, describe the reshuffling of top posts on the ATC website, and discuss using a line laser to measure the effective height of cut.I have also recently been the guest on The Tie podcast and on The Talking Greenkeeper. Listen to those episodes and then let me know if you think the philosophy of greenkeeping I discussed makes any sense.The Tie: https://podcasts.apple.com/us/podcast/micah-woods-leading-turf-grass-scientist/id1583596139?i=1000643868377The Talking Greenkeeper: https://podcasts.apple.com/us/podcast/the-micah-woods-annual-holiday-special/id1435947281?i=1000639222356Zoysia seeds: https://www.asianturfgrass.com/post/daylength-temperature-and-zoysia-seeds/Annual sand topdressing amounts: https://www.asianturfgrass.com/post/annual-sand-topdressing-amounts/Top post reshuffle: https://www.asianturfgrass.com/post/the-annual-reshuffling-of-top-posts/Effective cutting height with laser measurement: https://www.asianturfgrass.com/post/measuring-effective-cutting-height-with-a-laser/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/asianturfgrasscenterListen 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/