I’ve noticed that traffic—just enough traffic—can transform some grasses into an amazing type of surface. I’ve seen this with Cynodon in China, with Festuca in Iceland, and in other places as well, but those are a couple that come to mind.
I’ve been making estimates of N mineralization from soil organic matter for the past few years using the method described by Gilmour and Mauromoustakos in Nitrogen mineralization from soil organic matter: a sequential model.
Last year I wrote about manilagrass (Zoysia matrella) sod on highway medians in Thailand. I showed photos of a recently planted median, and explained why zoysia doesn’t persist in this environment when maintained without supplemental irrigation and regular mowing.
I see a lot of grass in driveways, parks, lawns, and fields when I run around southern Thailand. And because I can’t run very fast, and I happen to be curious about grasses, I get a pretty good look at what is growing.
I’ve seen a lot of highways in Thailand. Highway medians are sodded with manilagrass (Zoysia matrella) as a matter of course (more about the cost of that below). I’ve seen some impressive vistas of this work in past years, but for safety reasons haven’t been able to get any photos.
Have you ever seen patches like this on Zoysia turf?
Maybe the early stages of an intense large patch outbreak, or elephant’s footprint (Rhizoctonia cerealis) that got out of control? Way out of control?