This technique has many advantages compared with multiplication by seeds. However, it also has some disadvantages. It should, therefore, be introduced onlt if suited to the local environmental and economic conditions.
- More uniform growth.
- Yield higher by 20-30 %.
- Easier harvesting.
- Earlier harvest.
- A nursery bed is needed for the cuttings.
- Transporting plantlets is an additional cost.
- The planting season is critical and short.
The Technology: Making the Nursery
Suitable Location for Nursery
The nursery should be near a water source. It should have easy access to transportation, and be near the plantation to which the plantlets will be transplanted. The gradient should be less than 5 o.
Making the Nursery Bed
The bed should be 1-1.2 m in width, 8-15 m in length, and 10-15 cm in height. Walking paths 30-35 cm wide are needed between the beds for the management of the nursery.
Polyethylene bags (12x18 cm) are used as pots.
Several holes are needed in the bottom of the bag for drainage. First, soil mixed with compost (50%) is put into the bag to fill it one-third full. Then, fine soil (2/3) is added to fill the pot. The pots are placed firmly on the nursery bed.
bag for drainage. First, soil mixed with compost (50%) is put into the bag to fill it one-third full, ( Fig. 1). Then, fine soil (2/3) is added to fill the pot. These pots are placed firmly on the nursery bed.
Erecting the Roof
A roof is set up, 1.8-2.0 m above the ground ( Fig. 2). Roofing material should be in pieces, the small enough for them to be removed easily to allow watering and exposure to sunlight.
Preparation of Cuttings
Choose branches 6 months old, with a stem 4-6 mm in diameter. Cut each branch into small pieces, each 3-4 cm in length with a single leaf ( Fig. 3).
Planting of Cuttings
Irrigate the bag pots up to about 80-85 % before planting the cuttings. One or two cuttings are planted in each pot.
1-2 weeks after planting : Twice a day
3-4 weeks after planting : Every2 days
5-8 weeks after planting : Every 3 days
9-12 weeks after planting : Every 5 days
13-16 weeks after planting : Every 6 days
17-25 weeks after planting : Every 10 days
1-2 months : Remove the roof only on cloudy days.
3-4 months : Remove the roof for the whole length between 2 rows.
After 5 months : Remove1/3 of the roof.
From 6 month : Remove the whole.
Two months after planting: Urea 5, superphosphate (SP) 5, kaliclorua (KC) 7
Four months after planting: Urea 14, SP 6, KC 10
Six months after planting: Urea 18, SP 8, KC 14
Disease Control (If Needed)
Spray 3 months after planting: Methylparathion, Padan etc, at an application rate of 1L per 1/2 m2.
Field Preparation and Transplanting
Ploughing depth: 40-50 cm
Transplanting zone: 20-25 cm in width, 15-20 cm in depth
Basal dressing: Manure 25-30 tons, urea 100 kg, super phosphate 200 kg, KCl 200 kg
Planting density: 1.75 m between rows, 0.5 m between hills, 2 plants/hill
Index of Images
Figure 1 Filling the Bags
Figure 2 Roof to Shade Cuttings
Figure 3 Cutting 3-4 CM Long with Single Leaf
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