The Preparation of Plantation RubberMorgan, Sidney
Science
The Preparation of Plantation Rubber
Morgan, Sidney
Rubber
BASKET PLANTS.--Yet another and perhaps the most popular method at present
is the germination and growth of seedlings in baskets specially constructed
for the purpose. These plants are kept under observation until of the
required age and growth. They are then conveyed to the field, and the
baskets are planted in prepared holes. The baskets, being of vegetable
material, are liable to be attacked by various diseases while in the
nursery or after planting. It is considered advisable, therefore, to treat
them by dipping into some disinfectant such as tar, or a mixture of tar and
one of the common proprietary disinfectants. Otherwise a disease may be
conveyed from the basket to the seedling.
PREPARATION FOR PLANTING.--There can be no other opinion than that ideally
all land required for planting should be perfectly clear of timber of every
description. After felling and burning, under ordinary conditions a certain
amount of clearing is effected, but in actual practice this amounts to
comparatively little. Big logs and stumps are left because the cost of
clean clearing is judged to be prohibitive and non-economic. Surface timber
is gradually cleared in the course of development, and usually large stumps
are the last to be tackled. The objection to this procedure is really not
strong, but unfortunately an important point is generally overlooked.
Granted that most of the dreaded diseases travel beneath the surface of the
ground by means of buried timber, it is plain that as far as stumps are
concerned, the chief source of danger lies in the existence of the roots.
If these were carefully exposed and removed, the isolated stumps would then
not be such potential infection points. It follows from this argument that
the importance of removing buried timber cannot be too strongly insisted
upon. It is not uncommon to find that some years after the opening of an
estate, and after surface timber has been removed, a large number of trees
are affected with _Fomes lignosus_ (formerly known as _Fomes semitostus_).
Such cases are directly attributable to the existence of buried timber, and
no local treatment will be successful unless the whole of the area is dug
over carefully, and all pieces of timber removed.
[Illustration: NEW CLEARING; SLOPES "HOLED" FOR PLANTING; FLAT AREA BEING
DRAINED.
(_By courtesy of manager, Membakut Estate, British North Borneo._)]
Public-domain text, read in full here on John Shaqi.
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