Environmental Engineering Reference
In-Depth Information
application of glyphosate may be needed. The next step is to punch holes
and insert plugs. In contrast to plugging into bare, cultivated soil, the
holes must be punched with some heavy device, such as a metal crowbar,
able to penetrate at least 4-5 cm into the soil. After the plugs are inserted,
the area should be cared for as would any other plugged area.
The author once observed an unconventional turf-renovation method
at a tropical Asian resort, where cynodon turf area was converted to St
Augustine grass. A core aerification machine (see Chapter 8, this volume)
punched holes in already brown, dead turf, removing soil cores to the
surface. Workers manually inserted pieces of St Augustine stolon into
each individual hole and then filled the holes with soil taken from the
surface. The results were exceptional. Within two months, the cynodon
turf area was entirely converted to St Augustine grass. This type of
renovation requires a great deal of manual labour and is achievable
only where labour is inexpensive. Otherwise, sprigging and stolonizing
cannot be used to renovate turfs. Nearly all planting material will be lost
to desiccation.
Renovation, unlike regular turf establishment, can be performed at
the peak of the rainy (monsoon) season. In most cases, heavy rains cause
no harm.
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