Huzaifa Ismail presented on the production technology of castor bean. Some key points: - Castor bean is native to East Africa and has been grown in India and Egypt for its oil and seeds. It is drought resistant and grown in dry areas. - It is mainly grown in Sindh and districts of Punjab like Multan and Bahawalpur. Seed bed preparation involves deep plowing and soil is kept moist. - Sowing is done in July-August through dibbling, drilling or keera methods. Fertilizers, irrigation, weeding and insect control are important management practices. - Harvesting begins 90-120 days after sowing through multiple pickings

1. HUZAIFA ISMAIL
SEC-A
ROLL #006
4TH SEMESTER

2. Topic of Presentation
Production
Technology
of
Castor bean

3. ■ Common Name:
■ Arind
■ Botanical Name:
■ Ricinus communis L.
■ Family:
■ Euphorbiaceae or spurge

4. Botanical Description
■ Indeterminate growth habit.
■ Tap root system.
■ Self and cross pollination.
■ Oil content is 40-60%.
■ Ricinolien.
■ Ricine and ricinine.

5. Origin and History
■ Indigenous to Eastern Africa
■ Castor oil and seed used in INDIA and EGYPT.

6. Economic Importance
■ Paints, varnishes, detergents, resins, fiber, soaps, cosmetics.
■ Silk worm can be rear on green castor leaves.
■ Veterinary medicines.
■ Castor seeds protein are used distamper.
■ Castor cake Is used as manure.

7. Soil
■ Drought resistant
■ Grow in dry areas.
■ Moist soil , well drained and not alkaline.
■ It prefer 5 – 6.5 pH.
■ On high fertile land its yield may be low due to high
vegetative growth.
■ It requires 140-190 days to mature.

8. Locality
■ It is mainly grown in
– Sindh
– districts of Punjab like
Multan and Bahawalpur.

9. Seed Bed Preparation
■ Deep rooted crop.
■ Deep ploughing to break up the hard sub soil.
■ Dry land is ploughed 2 – 3 times followed by clod
crushing.
■ After good rain or heavy irrigation when soil moisture
is adequate soil is cross ploughed twice than planked.

10. SowingTime
■ Irrigated areas
■ July
■ Rain fed areas :
■ Sindh : July - August.
■ Punjab : mid July – mid August.

11. Fertilizers
■ Nitrogen …………. 25-50 kg/ha
■ Phosphorus ………….. 50-70 kg/ha
■ Potassium …………….. 40-50 kg/ha

12. Seed Rate
■ 12-15 Kgha
■ 10,000 – 15,000 plant population per hectare.
■ Soaking seed in water 12 – 14 hours before sowing
hasten the emergence.

13. Sowing Method
■ Dibbling
■ Drilling
■ Keera
■ P x P = 25-30 cm
■ R x R = 75 cm

14. Interculture andWeeding
■ It germinates in 8-20 days after planting.
■ Canopy development is slow so weed control is
major problem.
■ Weeds between the rows can be control by any
secondary tillage instrument but care should be
taken that inter-culturing is shallow and young
seedling are not damaged.

15. Irrigation
■ In dry areas castor is totally grown on stored moisture.
■ In irrigated areas
■ 4-6 irrigations are enough till maturity.
■ 1st irrigation is given when plant produces 6-8 leaves
■ subsequent irrigations at interval of 7-21 days
depending upon soil and climate conditions.

16. Harvesting
■ Castor produces spikes.
■ The main spike is harvested within 90-120 days
■ Two picking are done in Sindh and Baluchistan.
■ Three-four are possible in Punjab
■ 1st in December.
■ 2nd in Feb.
■ 3rd in April-May.
■ Harvested spikes are sun dried for 6-8 days.
■ Dried spikes are threshed by gently rubbing the spike with
wooden plank.
■ Castor seed is hard it is not attacked by insect or diseases.
■ Oil content are not reduced even after 3 years.

17. Yield
■ In irrigated areas
■ 2500-3000 kg/ha.
■ In rain fed areas
■ 500-800 kg/ha.

18. Insects
■ Semi lopper
■ Jassids
■ Hairy caterpillar

19. Varieties
■ DS-30 (SINDH).
■ C-3 (PUNJAB).