Micah Woods
March 03, 2016
77

# The right conditions for golf

Discusses the soil and water conditions necessary for golf. Presented in Beijing and Bangkok at The R&A Seminar on Sustainable Golf Course Design, Renovation, and Maintenance in Asia

March 03, 2016

## Transcript

1. ### The right conditions for golf Micah Woods Chief Scientist |

Asian Turfgrass Center www.asianturfgrass.com The R&A Seminar on Sustainable Golf Course Design, Renovation, and Maintenance in Asia March 2016

3. ### 1. Soil There must be some soil in which plants

(grass) can grow. Fairway “soil” Japan

7. ### Penn G-2 bentgrass nursery Shanghai All greens on a course

should have similar soil conditions
8. ### 2. Water There must be some source of water to

maintain turf at the desired growth rate. irrigation pond Thailand

drainage
10. ### Calculating the irrigation water requirement • estimate the water use

of the grass, which is represented by evapotranspiration (ET) • subtract the effective precipitation from the ET • multiply times the area to be irrigated • adjust for the distribution uniformity of the irrigation system
11. ### Example: 20 ha in Beijing for the month of June

• estimate the water use of the grass, which is represented by evapotranspiration (ET) • the average daily ET in June is 4.6 mm, or 138 mm for the month
12. ### Example: 20 ha in Beijing for the month of June

• ET = 138 mm • Average June precipitation is 71 mm • Effective precipitation is 32 mm • Amount that must be supplied is 138 – 32 = 106 mm
13. ### Example: 20 ha in Beijing for the month of June

• Irrigation must supply 106 mm • 106 mm applied to 20 ha is 21,200,000 liters

15. ### The irrigation applied to the lowest 25% cups is compared

to the average of all cups Tifdwarf bermudagrass Thailand
16. ### Example: 20 ha in Beijing for the month of June

• Irrigation must supply 106 mm • 106 mm applied to 20 ha is 21,200,000 L • Let's say the distribution uniformity is 0.84 • 21,200,000 / 0.84 = 25,200,000 L
17. ### Cart traffic is especially damaging to dormant turf. A lower

growth rate can be maintained (and less water used) when cart traffic is reduced. manilagrass (Zoysia matrella) Thailand

ryegrass USA