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The right conditions for golf

Micah Woods
March 03, 2016

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

Micah Woods

March 03, 2016
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  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
  2. 1. Soil There must be some soil in which plants

    (grass) can grow. Fairway “soil” Japan
  3. 2. Water There must be some source of water to

    maintain turf at the desired growth rate. irrigation pond Thailand
  4. 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
  5. 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
  6. 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
  7. 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
  8. The irrigation applied to the lowest 25% cups is compared

    to the average of all cups Tifdwarf bermudagrass Thailand
  9. 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
  10. 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