Oil Palm (Elaeis guineensis)
Land Preparation
Nursery practices
- The fruits are separated from the bunch and seeds are extracted by scraping off the exocarp and mesocarp with a knife, or by retting in water.
- The seeds are then dried by spreading them on concrete or wooden floors under shade for two days. Such seeds can be stored for 3-9 months at about 27⁰C without much reduction in viability.
- Seeds are soaked in water for five days, changing the water daily.
- Thereafter, the seeds are spread out to dry for 24 hours.
- The dried seeds are put in polythene bags and placed in germinator maintained at a temperature of 40ºC.
- After 80 days, the seeds are removed from polythene bags, soaked in water for 5 days changing the water daily and dried in the shade for two hours.
- The seeds are then put back into bags and kept in a cool place in order to maintain the moisture content.
- Germination commences in about 10-12 days.
- The percentage of germination obtainable by this method is 90-95.
Raising nursery
- Polybags (preferably black) of 400-500 gauge measuring 40 cm x 35 cm are used.
- The bags are filled with topsoil and compost and are arranged at a spacing of 45 cm x 45 cm and one sprouted seed is dibbled per bag.
- A good mulching during summer is desirable.
- Watering the seedlings weekly thrice is recommended.
- A fertilizer mixture containing 15 g N, 15 g P2O5 and 6 g K2O at the rate of 8 g in five litres of water for 100 seedlings may be applied when the seedlings are two months and eight months old.
Planting
- Oil palm is planted in the main field in triangular system at spacing of 9 m accommodating 140 palms per ha.
- Planting is preferably done at the onset of monsoon during May-June.
- The polythene bag is torn open and the entire ball of earth is buried in the pit (50 cm x 50 cm x 50 cm) and levelled.
Pollination
- Oil palm is a cross-pollinated crop.
- Assisted pollination is done to ensure fertilization of all female flowers.
- However, this is not necessary if the pollination weevil. Elaedobius kamerunicus is introduced in the plantation.
- They congregate and multiply on male inflorescence during flower opening.
- The weevils also visit the female flowers and pollinate them effectively.