Hybrid Castor Bean Seeds

Hybrid Castor bean seedsHybrid Castor bean seeds for Cultivation Purpose Highest Yield than any other varietiesGermination : More than 90%Oil content : 48 to 52%Pure Fresh Graded Seeds  Packing : Poly bagsPresentation : 25 kgs, 50 kgs  

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Castor is
generally grown for seeds. Castor seed oil is being used widely for various
purposes. It is used as a lubricant in high-speed engines and aeroplanes, in
the manufacture of soaps, transparent paper, printing-inks, varnishes, linoleum
and plasticizers. It is also used for medicinal and lighting purposes. The cake
is used as a manure and plant stalks as fuel or as thatching material or for
preparing paper-pulp. In the silk-producing areas, leaves are fed to the
silkworms.

Land prepration: The
land is repeatedly ploughed in summer, as and when the rains are received, and
with the onset of monsoon rains the clods are crushed by working a country
plough or harrow to bring the soil into proper tilth.  

Sowing: Before sowing, castor seed should be treated with Thiram 3
g/kg of seed to prevent the attack of root-rot and Alternaria blight. The spacing
adopted generally ranges from 90-120 cm between rows and 45-60 cm between
plants in the row.

The seed is sown either in the plough furrow or with a
seed-drill or by hand-dibbling. The seed-rate used for sowing behind the
plough is 12 kg per hectare. For hand-dibbling, 8 to 10 kg of seed will be
sufficient per hectare.

One or two weedings and hoeings with bullock-drawn
implements are given and sometimes, the plants are earthed up. 

Varieties: The
varieties of castor differ in the branching habits of plant, colour of the stem
and branches (red and green), the nature of capsules (smooth or shiny),
duration (early or late) and the size of seed.

Some of the
high yielding castor varieties are NPH-1 (Aruna), GAUCH-4, and TMVCH.

Newly released castor hybrid recommended for cultivation in
Tamil Nadu is TMVCH by Oilseeds Research Station of the Tamil Nadu Agricultural
University (TNAU) Tindivanam. This hybrid
matures in 160-170 days. Its seeds contain 51.7% oil. It is moderately susceptible to
semilooper pest and moderately resistant to wilt and grey mould.  

Fertilizer: The fertilizer dose recommended  for castor is 40 N-40
P-20 K kg/ha. The entire dose of P and K and half of W is applied basally and
the remaining half of W about 30 days after sowing, as and when the soil
moisture is adequate. 

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Harvesting: The improved varieties maturs in about 150 to 180 days.
When one or two capsules in a bunch show signs of drying, the whole cluster is
generally removed and stacked, covered and weighed in a corner of the field or
in a pit. The harvesting of unripe capsules in this manner has an adverse
effect on the oil content of the seed and hence should be avoided. It is
preferable to collect the fruits, as and when they ripen.

When the whole crop is gathered, it is dried in the sun for
a few days and the threshiug is done either by beating the dried capsules with
a stick or by treading them under the feet of bullocks. Winnowing is done in
the usual manner. 

YIELD:. In irrigated
Area the castor crop yieds 500 to 1600 kg/ha.  

PESTS AND DISEASE: The castor semi-looper  and the capsule-borer  are the
two most serious pests of castor. Dusting BHC 10% in early stages or
spraying  0.1% Carbaryl  on the crop will give an effective control
on these pests.The seedling blight and Alternaria
blight cause serious losses to this crop. The Sowing of the crop in
low-lying and water-logged areas should be avoided to prevent the seedling
blight from appearing. For alternaria blight, seed treatment with Thiram at the
rate of 3 g/kg of seed is recommended.