23 December 2024
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മലയാളം
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Agriculture >
Plantation Crops > Rubber (Hevea brasiliensis)
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Crop
Management
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Climate and Soil
Climate
- Rainfall of 2000 to 4500 mm evenly distributed without
any marked dry season and with 125 to 150 rainy days per annum
- Maximum temperature
of about 29-340C and minimum of about 200C or more with a
monthly mean of 25-280C
- High atmospheric humidity of the order of
80%
- Bright sunshine amounting to about 2000 h per annum at the rate of 6 h per
day through all the months
- Absence of strong winds
Soil
- Should have a minimum depth of one metre without any intervening hardpan or impenetrable
layer
- Water table should be well below one metre
so that at least one metre of soil with good aeration, essential for root penetration
is available
- Soil should be well drained. In marshy
areas, owing to poor physical properties and waterlogged conditions growth of rubber
is always found to be very poor
- Generally, soil
in the rubber tract is highly weathered and are mostly lateritic. Sedimentary types
and non-lateritic red and alluvial soils are also seen in some non-traditional areas.
Red soil found in some areas is characterized by reddish to brown colour and fine
loamy texture.
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