- Address : Bathalagoda, Ibbagamuwa, Sri Lanka
- E- Mail : rrdi@doa.gov.lk
- Telephone : +94 372 258561
- Fax : +94 372 259881
Rice- the staple food-Crop Establishment
Parachute Nursery
Nursery
Nursery location
- Established in parachute trays with dimensions of 56 x 34 x 2 cm (length x width x height).
- one tray consists of 434 small holes.
- nearly 760-765 trays are required for 1 ha.
- On a flat land exposed to sufficient sunlight.
Construction of the seed bed
- Holes of the trays are filled up to about ¾ height with clay.
- Trays are placed as rows of two trays.
- If wet-bed method is used, a part of the field is used to place trays.
- should be about 10cm high and 75cm wide
- have an appropriate length to accommodate all trays.
- should be kept for 1-2 days before the trays are placed.
Nursery maintanance
- Trays are covered with coconut or banana leaves to provide protection from rain and dessication.
- removed after 2-3 days.
- water is added if required.
Seed paddy
Requirement
- About 20-30 kg/ha
- Assures the advantage of less cost for seed paddy and labor.
Seed Preperation
- Soaked for 24 hours and incubated for 24 hours.
- Or dry seeds.
Nursery establishment
- Pre germinated or dry seeds are placed on holes (2-3 seeds per hole).
- A thin layer of soil is spread over the seeds.
- Water is added as required.
- Seedlings are removed from trays after 12 days.
- Along with the mud balls
- and thrown over the field evenly.
Nursery
Nursery location
- Established in parachute trays with dimensions of 56 x 34 x 2 cm (length x width x height).
- one tray consists of 434 small holes.
- nearly 760-765 trays are required for 1 ha.
- On a flat land exposed to sufficient sunlight.
Construction of the seed bed
- Holes of the trays are filled up to about ¾ height with clay.
- Trays are placed as rows of two trays.
- If wet-bed method is used, a part of the field is used to place trays.
- should be about 10cm high and 75cm wide
- have an appropriate length to accommodate all trays.
- should be kept for 1-2 days before the trays are placed.
Nursery maintanance
- Trays are covered with coconut or banana leaves to provide protection from rain and dessication.
- removed after 2-3 days.
- water is added if required.
Seed paddy
Requirement
- About 20-30 kg/ha
- Assures the advantage of less cost for seed paddy and labor.
Seed Preperation
- Soaked for 24 hours and incubated for 24 hours.
- Or dry seeds.
Nursery establishment
- Pre germinated or dry seeds are placed on holes (2-3 seeds per hole).
- A thin layer of soil is spread over the seeds.
- Water is added as required.
- Seedlings are removed from trays after 12 days.
- Along with the mud balls
- and thrown over the field evenly.
This method will avoid transplanting shock. and therefore suitable for varieties of all age groups. However, feasible only with smaller fields (less than 2 acres).
This method will avoid transplanting shock. and therefore suitable for varieties of all age groups. However, feasible only with smaller fields (less than 2 acres).