The Doublecut with Micah Woods

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

• 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

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

• 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

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

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

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

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

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

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/