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I showed how weather data can be used to calculate a daily soil water balance. One can adjust the rootzone characteristics, and the timing and amount of irrigation, so that the calculations are representative of what one wants to know.

One can calculate a water budget for a particular location to get an estimate of how much irrigation water is required. This article from the Green Section Record describes those calculations.

I don’t like turf diseases. If there is any fun in them, for me, it lies in only two things. First, is it a particularly well-named disease? Second, how awful are the symptoms?

Fred Varcoe wrote about putting greens on Japanese golf courses in the August 2016 issue of Euro Biz Japan. The article, [Know your greens (pdf, 3 MB)][1], includes some quotes from me about bentgrass, korai, and how balls roll on putting greens.

I made [a Shiny app with climatological normals data][1] from the Japan Meteorological Agency to show the combination of sunshine and temperature at 11 locations. [@naturalgolf_D asked][2] “What kind of situation is Japan?

While Eric Reasor was collecting the data on ball roll dispersion in Thailand – read yesterday’s post for more about that – I collected data on the the same greens.

When Eric Reasor flew from Tennessee to Thailand, he brought along measuring tools to assess how golf balls roll across putting greens. He visited 22 golf courses in 5 days.

I led a seminar in which I discussed how much one can expect grass to grow. During that seminar, I said something like: grass can always grow more, but turfgrass managers restrict the growth rate by supplying less nitrogen fertilizer than the grass can use.

In a series of quotes about BCSR, this conversation ensued. Allan Dewald asked about MLSN, and Travis Shaddox brought up the probability of response. We won’t provide a response probability for MLSN because it is not a fertilizer calibration.

Looking down at Hat Lamai from the 8th tee at Royal Samui. I’ve written about a hypothesis for identifying the most sustainable grass. Paul Johnson wrote with some feedback on this hypothesis, and a few questions.