Recent Posts

Promising results after one week

You may recall the mosquito and all that followed from that. I don’t think I’ve mentioned that I heard footsteps a couple weeks ago—footsteps on the ceiling above my office on the second floor.
Promising results after one week

rturf 9: libraries, plotting data, and decreasing green speed

After all those previous posts in this series, we are finally ready to take a look at the clipping volume and green speed data together. In this screencast, I loaded some R packages, or libraries.
rturf 9: libraries, plotting data, and decreasing green speed

Rethinking my training plan

I knew my preparations for the recent Krabi International Trail race were a little unconventional. But I had some hope that they would be effective. Naturally, when running at latitudes within 10° of the equator at elevations below 2,000 m, it is going to be hot.
Rethinking my training plan

rturf 8: the merge function to combine green speed and clipping volume

Previous posts in this series showed how I read the green speed data from the 2019 Women’s PGA Championship into the R working environment. The reason I want to have these speeds in the working environment is so I can have a look at how the green speeds were related to clipping volume that week.
rturf 8: the merge function to combine green speed and clipping volume


Micah Woods, Ph.D., is the founder and chief scientist of the Asian Turfgrass Center. Since graduating from Oregon State University in 1998, Micah has been traveling extensively, collecting data, and advising turfgrass managers across Asia, Australia, North America, and Europe. From 2001 to 2005, he was in New York to study with Frank Rossi at Cornell University. The broad scope of his research on grasses around the world led to his collaboration with scientists from PACE Turf to create the MLSN guidelines which are applicable to turf in all climate zones, or as he says, “any grass, anywhere.” You can read more about Micah’s unique take on tending turfgrass in his book, A Short Grammar of Greenkeeping, as well as on his website,

If you have the pleasure of hearing Micah speak at a conference, you may notice that he frequently dons a bow tie and sports some unusual hairstyles. A devoted Dickens fan, Micah has read all of his novels, from Barnaby Rudge to A Tale of Two Cities. Micah is inspired as much by clever turns of phrase and stunning mountaintop views as he is by solving problems, creating graphs, and discovering unexpected statistics.


  • Turfgrass nutrition
  • Turfgrass selection
  • Efficient greenkeeping


  • PhD in Horticulture, 2006

    Cornell University

  • BSc in Horticulture, 1998

    Oregon State University





Measure exact topdressing effect, and requirement, by checking total organic matter by depth.


I’ve written a few books about greenkeeping, turfgrass science, and clipping volume.

Global Soil Survey

Checking soil nutrient levels of good-performing turf all over the world.


Minimum levels for sustainable nutrition—MLSN—is a modern method for interpreting soil tests for turfgrass.