Castor Seeds are valued mainly for their oil, which is used in pharmaceutical products. Ground seed cakes are used as fertilizers (castor oil pomace)
KC1, KC2, KC3 and KC4
Rainfall: 500-600 annually
Altitude: 0-1800m above sea level
Soils: Deep well drained sandy loams with PH ranging from 5-6.5
Plough the land removing weeds, stumps and other obstacles. Incorporate the trash in in soil to boost the organic matter. Harrow the field to medium tilth as per crop requirement.
Done when there is enough moisture in the soil to a depth of 6-8cm. at planting add 125kg of DAP per hectare-basal application. Spacingshould be 1m by 30cm-60cm and seedrate range from 10-15kg per hectare.
Top dressing- Apply 20kg of CAN per hectare at initiation of secondaries and the same dose repeat at each successful picking starting of the first order spike
Irrigation- The first irrigation should be done when the plants are in 6-8 leaf stage from which 4-6 irrigations are given until 2-4 weeks before harvesting.
Weed control- Spray with a suitable pre-emergence herbicide eg Alachlor at a rate of 1.25kg per hectare followed by 1-2 hand weeding depending on weed emergence.
Grasshoppers- Destroy alternate hosts, maintain field hygiene
Capsid and green stink bug- Practice good field hygiene, spray with duduthrin or any other suitable insecticide.
Capsule borer- Use suitable insecticide such as polytrin
Jassids- Use resistant varieties, use suitable insecticide such as polytrin
Thrips- Spray with a suitable insecticide eg Cypermethrin
Leaf spot- Use a suitable fungicide, broad based
Rust- Plant resistant varieties, crop rotation and practice good field hygiene
Matures between 142 -191 days, harvest in the dry season at intervals of 15-30 days to keep up with the drying and to avoid shattering. Yield average to 3000kg per hectare.
- Manufacturing air craft lubricants, hydraulic fluids, explosives and dye
- Making soap, body ointments and cosmetics
- Treatment of guinea fowl abscess and flatulence
- Castor cake is used as fertilizer, leaves as silk worm and livestock feeds