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Sagwan |
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A quick-growing tree, with rounded crown, very variable in size, with straight stem,
up to 27m/7m.
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How does it look:
A quick-growing tree, with rounded crown, very variable
in size, with straight stem, up to 27m/7m. Stem in favourable localities attains
a large size, with tall, clean, cylindrical bole, having uniform girth, becomes
fluted and buttressed with age.
Silvicultural Characters
A pronounced light-demander. Sensitive to competition, particularly roots.
Resists drought but sensitive to frost. Coppices and pollards vigorously. It is
not browsed, withstands injuries from cutting and fire.
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How to grow:
Regenerates from seeds, but the extent depends upon the climatic
and soil factors. Prefers alluvial soil for germination. Seeds are dispersed through water. Baking and soaking stimulates germination. Needs protection from grazing
and fire.
Nursery-raised seedlings are transplanted in April. Seeds are sown in well-prepared
beds in moist areas or sunken beds in dry areas during March-June, depending upon
the locality. Seeds for each bed of 12 m x 1.2 m varies from 5 to 12 kg depending
upon the locality. Seeds are covered and mulched, and watered in dry areas. Watering
is slowly reduced. Stumps from seedlings of 1-2cm thick are prepared with 1.5-5.0
cm shoot and 15-25 cm taproot without lateral roots and planted during rains; split-halves
also give satisfactory results. Sprouted stumps raised in April in polythene-tubes
give better results. Site is prepared by burning the slash and, with good rainfall
of 150cm, 2.6m x 2.6m is suitable. Depending upon moisture, the stumps are planted
in crowbar holes or 30cm3 pits. NPK (1:2:4) is also given in latertic
soils.
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Where to sell:
- Wood can be sold to timber merchants.
- Seeds can be sold to pharmaceutical companies for
medicinal preparations.
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Uses:
- For soil reclamation, control of erosion; recommended for and grown under agro-
and social forestry. Agricultural crops, which do not have an adverse effect on
teak, such as maize, hill paddy, chillies, horse gram, ragi, etc., can be cultivated
for 1-2 years in between teak. Also grown for shelter belts, windbreaks and as hedge.
- Timber : One of the most important hardwoods the world over. Poles, piles, ship-building,
all types of construction, bridge-building, coach-building, railways, frames, paneling,
houses, various grades of plywood, particle-boards, fire-boards, furniture, cabinet-making,
lorry-bodies, carts, carriages, mathematical instruments, violin-keys, long neck
of sitar and body of harmonium, agricultural implements; chip boards of satisfactory
strength and paper for writing and printing can be made form the waste wood-shavings.
Activated charcoal can be made from sawdust.
- Is a good firewood, but is not used (sapwood, 4989 kcal; heartwood, 5535 kcal/kg).
Charcoal can also be made.
- Seeds yield a fatty oil (2%), and promotes hair-growth; extract used as a lotion
for eye-troubles.
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