Posts

When it comes to fearmongering in turfgrass, I’m not sure there is a bigger one than bicarbonate (HCO3-). One often hears of supposed problems associated with bicarbonate. I’m still waiting to see a soil or turfgrass problem associated with this ubiquitous anion.

… it doesn’t. In fact, there is one variety of manilagrass (Zoysia matrella) that consistently grows faster than bermudagrass in Southeast Asia. I’ve had occasion to study and measure this grass, and there is no doubt that it grows faster than bermuda here.

Construction delays and an intensive events calendar have been cited as causes of pitch problems at Singapore’s National Stadium, “adding to the woes of a stadium that has drawn heavy flak for its sandy pitch.

This concerns the use of saturated paste (water) or dilute water extractants for assessing soil nutrient content, and specifically if data from those tests are a good way to decide if an element should be supplied as fertilizer.

I did an experiment in a greenhouse in which I grew creeping bentgrass in four different sands. I collected all the clippings and measured what was in them. And I tested the pH of the sands, and I did soil tests to measure the soil nutrient content.

1. Is water (or a saturated paste extractant, or mixing irrigation water with soil) a good way to look at soil nutrients? 2. What about two tests to look at “available” and “exchangeable” nutrients, is it good to look at both?

I’ve used equation 52 in Crop Evapotranspiration: Guidelines for computing crop water requirements (FAO Irrigation and Drainage Paper 56) to calculate the predicted ETo for San Digeo, California, and for Madison, Wisconsin.

At the Poipu Bay area of Kauai, most hotel lawns are seashore paspalum. This lawn at the Sheraton Kauai is a typical example. Under the trees, though, closer to the beach, a different species grows.

Jason Chennault and I had a conversation about interpreting soil tests. I had seen test results for a site and didn’t think there were any problems with the soil. Jason wrote back with more information.

I measured soil moisture and surface hardness on three fairways, approaches, and greens at a golf course in Thailand in September 2014. The fairways and approaches at this site are seashore paspalum on a sandcap.