Hi
The castor oil plant, Ricinus communis, is a plant species of the Euphorbiaceae and the sole member of the genus Ricinus and of the subtribe Ricininae. Its seed is the castor bean which, despite its name, is not a true bean.Castor seed is the source of castor oil, which has a wide variety of uses. The seeds contain between 40% and 60% oil that is rich in triglycerides, mainly ricinolein.
Distribution and Habitat
It is indigenous to many parts of India and Africa; now it has spread out over all tropical and sub-tropical countries. Castor an oil yielding crop is grown especially in semi arid and arid regions. India, China, Brazil, USSR, Argentina, Thailand, Philippines are the main countries known for castor production. In India the plants is found throughout the hotter parts of the country, cultivated in the fields and gardens, also frequently found wild near habitation, roadside and on wastelands.
A plant population of 55,500/ha has been found to be optimum for rainfed castor in all regions.
For achieving required plant stands in dry lands, a seed rate of 10-15 kg/ha is adequate depending on seed size.
In case conditions are favourable and crop growth period is prolonged due to irrigation, adopt wider row spacing and low seed rate corresponding to a seed rate of 5-6 kg/ha (18,500 plants/ha).
Traditionally, castor is a kharif season crop.
However, with the introduction of new, early and high yielding varieties and hybrids, its cultivation is extended to rabi and summer seasons also. Castor seed takes around 7-8 days in kharif and 15 days in winter to germinate depending on the prevailing temperatures.
As far as possible place the seed in a moist zone 10-12cm below the soil surface to ensure proper moist soil seed contact for sufficiently long period and thereby obtain good germination.
To eliminate light seeds and improve plant stand in drylands, soak the seed in water for 24 to 48 hours prior to seeding.
Castor is usually a whole season/year crop. However, under intensive management and irrigation, it is possible to take more than one crop in a year by choosing early and medium duration varieties/hybrids of castor and adopting specific agronomic manipulations such as nipping.
Castor-groundnut, castor-sesame or castor-sunflower are some such possibilities.
The marketing depends on the purpose you have cultivated for. It is an excellent feedstock for biodiesel. Before you cultivate please ensure you have studied the market conditions.
Where do you want to cultivate the crop??
If you can provide the details , we can guide you better.
Regards
Ashwini S