ClipVol

Did you see where soil potassium (K) only went down by 1 ppm after 374 mm (14.7 inches) of rain? In that same comparison of pre- and post-rain samples, the soil calcium (Ca) went down by 26 ppm.

I was at Copenhagen Golf Club on Monday for seminars with the Danish Greenkeepers Association. See some photos of the day here. One of my presentations was about green speed—I called it Stimp Stats.

Last week I had a couple conversations about green speed. Green speed and surface hardness My column in the June 2018 issue of Golf Course Seminar magazine discusses the relationship between effective mowing height and green speed.

I worked for David Hicks when I was a graduate student at Cornell University, and I worked with him on some soil testing and tissue testing projects too. We didn’t give a thought to clipping volume back then.

The other day it rained at ATC南店. I knew that the grasses would grow at a faster rate after the rain than they had been growing prior to the rain.

The Michigan GCSA’s Spring issue of “Course Conditions” is now out, and it includes a 5 page feature article that I called Measuring clipping volume is easier and more useful than I expected.

I received this email from Zachary LaPorte, and I share it here for two reasons. First, he’s expressed a number of things related to the measurement of #ClipVol that I have heard from many turfgrass managers who’ve implemented this technique.

In the ATC update sent earlier this week—subscribe here if you’d like to get on this list—I mentioned that one of the highlights of my year so far was the Royal Turf Family Seminar at the Park Hyatt Tokyo.

I put the series of genki level (GL) blog posts together into this 17 page pamphlet. The pamphlet explains how one can calculate the genki level from the actual N supplied as fertilizer compared to a standard amount of N for any time duration.

In part 2, I showed how the ratio of N applied to standard N gives an indication of how much one is pushing the grass to grow. I call that the genki level (GL).