All Episodes
Displaying 41 - 60 of 213 in total
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 d...
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 th...
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. Wou...
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...
Potassium, dogma, and putting green smoothness with Dr. Frank Rossi
Frank Rossi, Ph.D. is the New York State extension turfgrass specialist at Cornell University. We talked about mentorship, potassium, turf nutrition, smoothness of put...
Constants in the turfgrass growth potential equation
The PACE Turf growth potential equation has one variable (the actual air temperature) and two constants. The constants are optimum air temperature and a term for varia...
Two easy methods to estimate N mineralization under turfgrass
You can expect soil organic matter to be 5% nitrogen, and you can expect from 1 to 4% of that organic nitrogen to mineralize in one year. You can also calculate estima...
Linear relationship between #ClipVol and dry weight
This episode introduces multiple experiments that have demonstrated a link between rapid measurement of clipping volume and the clipping yield. Clipping yield is typic...
Creeping, velvet, and browntop bentgrass seeds with Dr. Leah Brilman
Leah Brilman, Ph.D., is the Director of Product Management & Technical Services for Seed Research by DLF. We discussed velvet bentgrass, creeping bentgrass, and brownt...
Topdressing, mowing height, and education points with Andrew McDaniel
Andrew McDaniel has been watching webinars to get education points, and some of these have been about management of soil organic matter on putting greens. We discussed...
Four things to look at with #OM246 test results
Here are four specific things to look at with total organic material by depth (#OM246) test results. The blog post I discussed is this one: https://www.asianturfgrass....
Golf course water requirement, overseeding, & Zoysia vs. bermudagrass with Dr. Matteo Serena
Matteo Serena is the Senior Manager of Irrigation Research and Services for the USGA. We discussed drip irrigation, growth regulators and soil surfactants, water use, ...
GvX, top six episodes, and turf terminology
I checked the top episodes, discussed turf terminology, and discussed the 2025 GCSAA Outstanding Contribution Award winners Dr. Wendy Gelernter and Dr. Larry Stowell. ...
Summer temperatures, turfgrass, and ΔGP
When the cool-season growth potential (GP) is lower than the warm-season GP, the difference between them (the ΔGP) will be negative. In this episode, I discuss ΔGP and...