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.
Appears in 182 Episodes
Humidity, heat, mid-round lunches, saunas, and the ITRC with Janne Lehto
Janne Lehto from Hirsala Golf in Finland attended the 15th International Turfgrass Research Conference (ITRC) in Japan. We discussed the heat and humidity in Japan dur...
Layers in the rootzone and turf performance with John Forrest and Jeff Austen
John Forrest and Jeff Austen joined me from Western Australia to discuss layers in the rootzone, the educational system and apprenticeships, and sand.We looked at phot...
Gradation, particle size distribution, sand, and more sand with Adam Moeller
How do you compare sands to show to what degree one is finer or coarser than another? I've been trying to figure out an easy way to visualize this with comparison to r...
Regional MLSN and the soil nutrient levels producing good turf with John Emerson
John Emerson is an extension agent for the University of Delaware who has completed a statewide soil sampling project from good performing turf across the state. We ta...
The median particle size of sand used for putting green rootzones and topdressing
The D50 is a value that represents the median particle diameter in a sand. I calculated the D50 for 302 sands from around the world, and 15% of them are finer than the...
How to find the photosynthetically active radiation (PAR) anywhere
I explain that moving from full sun to tree shade reduced photosynthetically active radiation by about 80%. I show an app, and a PACE Turf document, that will allow yo...
The GvX, #OM246, and #MLSN with John Petrovsky
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 e...
GP and ClipVol in the UK with Geoff Fenn
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 star...
Green speed went down by 0.6 inches per hour
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 tha...
Learning & remembering from a year of turf photos
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 lou...
Surface firmness and soil water content
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 ...
The turf GvX for checking grass growth with Jason Haines
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, ...
Living plant material (and thatch) are part of #OM246 too
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 di...
Calculation of the average daily temperature
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 ...
The ATC blog post bombs of 2024 with Joe Gulotti
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 tha...
Fertilizing grass this way seems strange to me now
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 stran...
Top 10 posts of 2024, plus app and podcast recommendations
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.Woul...
Bracketing #ClipVol for a desired range of green speed
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 cl...
Nitrogen rate, pendulum swings, and anchoring
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 recom...
What every greenkeeper should know about sand in clippings with Dr. Bill Kreuser
Bill Kreuser from GreenKeeper joined me to discuss how much grass grows, the complicated problems involved when sand is mixed with clippings, growth regulator adjustme...