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Cultivation details :
Soil :
Neem grows well on moist, dry, stony, clayey
or shallow soils including moderately saline and alkaline
soils and lateritic encrust. Silty flat and land prone to
mater immdation are not conducive for its growth. It can tolerate
a soil pH of 5-10.
Climate :
The tree is very hardy in nature and can
survive high temperature and altitudes between 50-1000 m and
little rainfall as low as 130mm per year and stretches of
drought. It thrives best when rainfall ranges between 480-1000mm
and a temperature as high as 48?C
Propagation :
Seed propagation is the common method of
growing neem trees. It can be grown easily by vegetative means
like root and shoot cuttings.
a) Nursery Raising
Seeds are collected from June to August,
which coincide with the rainy season. Seeds remain viable
for short period of 3-5 weeks only and should be sown immediately
within 2-3 weeks after collection. Nursery is raised in beds
in rows of 15cm apart and 2.5 cm apart within a row. Two months
to one-year-old seedlings can be transplanted when they attain
10-15 cm height. The seedlings can be raised in baskets and
also polythene bags.
b) Planting
The seedlings may be planted inside thorny
bushes to provide initial protection from cattle damage. Stumps
are prepared with 2.5cm of shoot and 22 cm of root and spacing
of 6-7m between rows and plants.
c) Pruning
Periodical pruning of the tree once in a
year during November-December provides a good framework and
faster growth of the tree.
d) Irrigation
Neem requires hardly any irrigation during
the summer season supports good growth of the seedlings. Mature
trees do not require irrigation.
Plant Protection :
Major insects: Thrips, defoliar, shoot borer
and termites
Major diseases: The plant is not attacked by any disease of
serious nature
Harvesting :
The fruits are harvested when the colour
of the fruit turns from green to bright yellow. Vigorous shaking
of the branches is required o collect the ripe fruits.
Yield :
About 8000-10000 Kgs of fresh berries can
be harvested from one hectare per year. Fresh fruit give about
60% dry fruits, which yield 10% kernel and contain on an average
45% fixed oil.
Economics :
No data seem to have been collected regarding
the economics as nowhere it is cultivated in an organized
manner and the distribution is scattered so the cost per hectare
could not be ascertained.
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