Environmental Engineering Reference
In-Depth Information
Coring, slicing and spiking techniques for greens do not differ from
those described in Chapter 8.
Rolling with water-filled rollers firms the root zone of newly estab-
lished greens and smooths their surfaces. Recently, light-weight self-
propelled riding rollers have become popular for smoothing the surfaces
of putting greens and increasing green speed during tournaments. These
rollers should be used only on sand-based greens. Soil greens may suffer
excessive compaction even with light pressure.
Cup changing
The rules of golf state that the hole on a putting green must be circular,
not less than 4.6 m from the edge of the green, 10.8 cm in diameter and at
least 10.8 cm deep. The slope should not change within 1 m of the hole.
A metal or plastic cup is commonly placed inside the hole (Fig. 9.6). The
cup should be sunk about 20-cm deep, and its upper rim should be at
least 2.5 cm below the green surface. A slender rod (sometimes called a
Fig. 9.6. The cup should be sunk below the soil surface. A flag is usually placed
inside the cup so that golfers can see the location of the hole from a distance.
