Posts

These posts had the most views in 2025. They are on a nice balance of topics: fertilizer, clipping volume, the Turf GvX, playability, tournament conditions, sands, and water. Here they are.

A correspondent wrote with a question about sand topdressing amounts in relation to the turf GvX. “I’m hoping you’d be able to point me in the direction of finding something on sand inputs vs.

This question arrived recently: How do you estimate soil nutrient depletion and provide a recommendation if clippings are being returned? Example: lawns or roughs. That’s a good one. See “How to get a quick estimate of grass nutrient use” for some background information about this—specifically about the a + b - c formulation to find the quantity of a nutrient to apply.

This is about the quantity of nutrients in reserve, the quantity of nutrients in the soil that the grass doesn’t use, when one keeps the soil nutrients at or above the MLSN values.

I’ve been following the total organic material (OM246) test results from the creeping bentgrass greens at Hazeltine National Golf Club with particular interest. Course superintendent Chris Tritabaugh has been measuring the sand application rate, the N application rate, and the aboveground growth (clipping volume).

Episode 18 of ATC Office Hours covers the basic greenkeeping practices that are effective in Denmark on pesticide-free courses. With guests Thomas Pihl, Mads Andersen, and Martin Nilsson, we answered live questions from the audience during this episode too.

Maggie Reiter has done a brand new analysis of turf industry accounts on . See the analysis at Finding Turf Twitter. She wanted to find “high-signal” accounts. I wanted to see if I could find people still sharing interesting things on Twitter/X.

I read the environmental section of the New York Golf Economic & Environmental Impact Report. More than one out of every five golf courses in the state responded to the survey, with a total of 154 responding courses.

A friend is in charge of a type of grass he hasn’t grown before. We went to look at the grass, and on the way to the golf course, he told me that someone had told him the grass didn’t need much sand topdressing.

This article about MLSN was published in Greenkeeper International in 2018. I suppose it’s one many of you have never seen. My title for this was “Making Sense of Turf Nutrition with MLSN”, although when published it was shortened simply to “Turf Nutrition.