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-gE
• ATC2x episode with T-Jay about management of the greens: https://youtu.be/NJwc7XJQRGk
• Bobble test rating scale: https://www.asianturfgrass.com/post/bobble-test-rating-scale/
• MSU Turfgrass Information File database: https://tic.msu.edu/database
• https://www.asianturfgrass.com/post/green-sweepers-that-work-beautifully/
• Cleaning aerification cores the easy way in Japan: https://youtu.be/yv26e9rqwBw
• https://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/paceturf
• ATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter

Find out more about soil tests with ATC at https://www.asianturfgrass.com/project/soil-tests/