Using the turfgrass growth ratio to adjust for site-specific conditions with Jason Haines
The turfgrass growth ratio (speedo) was developed by Jason Haines. It's a ratio of actual growth (grass clippings) divided by a temperature-adjusted standard amount of expected clippings. This simple ratio turns out to be surprisingly useful. We discussed this and related turf management issues.
Watch this episode at https://youtu.be/la1ulEIgVT0
Jason Haines is the golf course superintendent at Sunshine Coast Golf and CC in British Columbia, Canada. We discussed this post from the ATC website: https://www.asianturfgrass.com/post/clipping-volume-growth-ratio/
Jason's blog: https://fusariummy.blogspot.com/
The turfgrass speedo (or growth ratio): https://fusariummy.blogspot.com/2018/12/turfgrass-speedo.html
Productivity files (spreadsheets): https://fusariummy.blogspot.com/p/jason-productivity-files.html
Short Grammar of Greenkeeping book: https://leanpub.com/short_grammar_of_greenkeeping
Dissolving urea: https://youtube.com/shorts/oXETrSSDdS8?feature=share
1 g N dissolves in less than a minute: https://youtube.com/shorts/5wM8ZD_iZQw?feature=share
A hypothesis about the most sustainable grass: https://www.asianturfgrass.com/post/a-hypothesis-about-the-most-sustainable-grass/
It is easy to know when the grass grows too slow: https://www.asianturfgrass.com/post/dangerous-grow-too-slow/
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/
Jason Haines is the golf course superintendent at Sunshine Coast Golf and CC in British Columbia, Canada. We discussed this post from the ATC website: https://www.asianturfgrass.com/post/clipping-volume-growth-ratio/
Jason's blog: https://fusariummy.blogspot.com/
The turfgrass speedo (or growth ratio): https://fusariummy.blogspot.com/2018/12/turfgrass-speedo.html
Productivity files (spreadsheets): https://fusariummy.blogspot.com/p/jason-productivity-files.html
Short Grammar of Greenkeeping book: https://leanpub.com/short_grammar_of_greenkeeping
Dissolving urea: https://youtube.com/shorts/oXETrSSDdS8?feature=share
1 g N dissolves in less than a minute: https://youtube.com/shorts/5wM8ZD_iZQw?feature=share
A hypothesis about the most sustainable grass: https://www.asianturfgrass.com/post/a-hypothesis-about-the-most-sustainable-grass/
It is easy to know when the grass grows too slow: https://www.asianturfgrass.com/post/dangerous-grow-too-slow/
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/
Subscribe to my new podcast, Turf Without Borders, at https://turfwb.asianturfgrass.com/subscribe
Register for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/
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.html
Register 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-57abce2a5193
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/
Creators and Guests
Host
Micah Woods
I'm chief scientist at the Asian Turfgrass Center and director of the @paceturf information service. Some current projects include #OM246, #ClipVol, and #MLSN.
Guest
Jason Haines
Jason is a golf course superintendent, author of the Fusariummy blog, and the visionary behind the turfgrass growth ratio.
