Previous month:
January 2017

February 2017

Grow-in potential

These pictures were taken 28 days apart. Here's what the grasses looked like yesterday, on February 24. That was 4 weeks, exactly 28 days after planting.

Medium_salt_28_days

On 27 January, five different grass varieties were planted from stolons. The grasses, shown from left to right, are:

  • manilagrass (nuwan noi)
  • tropical carpetgrass (yaa malay)
  • seashore paspalum (salam)
  • manilagrass (hosoba korai)
  • bermudagrass (Tifway 419)

For the first 10 days after planting, all the grasses were irrigated with 330 TDS (total dissolved solids, in units of ppm) water. For the next 18 days, the grasses shown above were irrigated with 4,500 TDS water.

The planting rates for the stolons ranged from 99 g/m2 for the nuwan noi to 312 g/m2 for the yaa malay. This is the mean mass for the stolons planted in the pots. We cut the stolons into 10 segments with 3 nodes each and then weighed them and planted them; each 0.02 m2 pot was planted with 30 nodes (1,500 nodes per square meter).

This is what the pots looked like immediately after planting, on January 27.

Planting_jan27

I think this is interesting for two reasons. One, this gives some indication of the grow-in rate (and relative rates) of various grass varieties. Second, this shows the tolerance or not of the grasses to different salt levels in the water.

One set of grasses is getting water with salt (TDS) at 330 ppm, the one pictured are getting 4,500 ppm, and another set are being irrigated with 9,000 ppm.

I'll be talking about this, and showing some of these grasses, at the upcoming Sustainable Turfgrass Management in Asia conference.


The Winter's Tale

There are more surprising photos from Doug Soldat this week. Where potassium fertilizer was applied, there is more snow mold. Where potassium was not applied, there is less snow mold.

This photo, starting in the top right plot with the lowest amount of snow mold, and going clockwise, is:

  • top right, no K for six years
  • bottom right, no K for six years but high K added from August to October 2016
  • bottom left, high K for six years
  • top left, high K for six years but no K after August 2016.

It's not so surprising, actually.

Doug has been observing these results for some years now. See, for example:


This will be fun to follow: 100 courses in 100 days

This will be interesting, and you might like to follow along too. Paul Jansen, the golf course architect, will be traveling to 100 golf courses in a span of 100 days. All the courses are in SE Asia, and he is starting in Bali on 19 March and ending in Bangkok on 28 June.

Bali's a great place to start. The last time I played golf in Bali I birdied the 6th, 7th, and 8th at Nirwana Bali, just missing a hole-in-one here at the famed 7th.

Bali1

Behind

Paul's itinerary lists all the courses he will visit. He writes that he will "use the opportunity to highlight the richness and diverse nature of the golf experiences across the entirety of South East Asia." That will certainly be interesting, although I'm more looking forward to the serendipitous and surprising things that are sure to happen.

Perhaps visits to a few hidden gem courses that aren't on the written agenda? The food from so many different cuisines. I've had some great meals in the places he is going to visit. How's his stomach? No food poisoning, I hope. Traffic? Missed flights? Adjusted schedules. Mistranslations. Lost in the countryside and not speaking the language? No internet access? There are so many things that can happen on this adventure, and I'm looking forward to following along.

Paul has promised to take lots of pictures and to keep us updated. He will be sharing updates on a regular basis, maybe even daily. You can follow along at:

He's got quite a busy schedule during those 100 days, but I will try to catch up with him at one or two places along the way. I can't wait to hear what he has to say after actually doing this.

Plantation


The Micah no jikan book ...

is now available for pre-order, and I see from the Amazon.co.jp website that it can be shipped to any country. 

Selection_003

The full title is 芝草科学とグリーンキーピング (マイカの時間 The BOOK). In English that is Turfgrass Science and Greenkeeping (Micah no jikan The Book).

This book is the culmination of a long project, started in 2008, writing monthly articles about turfgrass science and greenkeeping for ゴルフ場セミナー. From those articles, I've selected some of my favorites, read and reread and arranged into chapters, and now we have this book. I hope these can be available in English sometime. It is some interesting material on a wide range of topics -- greenkeeping in general, soil water, organic matter management, fertilizer, golf course playability, and more.


Monthly Turfgrass Roundup: January 2017

January was another month with lots of material. From an extraordinary golf course in Nepal, to snowblowers on fairways, to sand and organic matter, there is plenty to see and read in this month's roundup.

Jon Wall went back to Nepal and shared these stunning photos of the Himalayan Golf Course.

The NC State Turf Diagnostics Lab shared a report of all samples submitted in 2016.

Should fertilizer costs be a secret?

Michael Wolpoff showed what happens to clipping volume when it rains.

The 2016 USGA Green Section Record Compendium.

Do you want to be on the ATC mailing list? Sign up here. As an example of what you'd get, this is the most recent ATC update.

Don't let micronutrients be a worry.

A sure way to prevent nutrient deficiences.

Eric Reasor wrote about his research trip to collect ball roll data in Thailand and Japan.

Brad Revill wrote more about how he makes use of the MLSN guidelines.

Hear more from Brad in this video where he talks with Nigel Taylor.

Does application of sand cause organic matter to increase?

Woodball looks like a fun game.

Jason Haines with fertilizer quantities applied since 1989.

Play golf in ice and snow, or close the course?

Jason Haines explains how he almost stopped using wetting agents on greens, and lost a case of beer in the process.

For more about turfgrass management, browse articles available for download on the ATC Turfgrass Information page, subscribe to this blog by e-mail or with an RSS reader - I use Feedly, or follow asianturfgrass on Twitter. Link and article roundups from previous months are here.