|By goGreen | October 29, 2011|
- requires less space for raising seedlings
- seedlings can be planted early (9-14 days)
- labor required for removing seedlings from seedbed is less than 1/4 compared to the wetbed method
- easy to transport seedlings from seed bed to the rice paddy
- Uses more seeds than the wetbed method.
- Produces smaller, younger seedlings which
- can only be used on farms where good water management is possible
- have a greater chance of being smothered by Azolla.
1. Locate an area in the field near a water source.
Locate an area
2. Irrigate the field. Plow and harrow it twice to puddle the soil and bury the weeds.
Irrigate the field
3. Flood the area 2 cm above the soil surface to facilitate levelling.
Flood the area
4. Prepare puddled seedbeds 1 m wide end of any convenient length. The seedbeds are raised 3 cm by taking some soil from the footpath.
5. Carefully level the seedbed and allow the soil to settle for a day.
Carefully level the seedbed
6. Cover the seedbed with plastic sheets or banana leaves. These materials are used to prevent the roots of the seedlings from penetrating into the soil.
Cover the seedbed with plastic sheets
7. Peg sliced banana bracts along the sides of the seedbeds to prevent the soil and the seeds from being washed away.
Peg sliced banana bracts
8. Sow the pregerminated seeds directly onto the plastic sheet or banana leaves. Use 1 kg seeds/sq.m. Seedlings from 60 kg seeds will be enough to plant 1 hectare.
Sow the pregerminated seeds
9. Cover the seedbeds lightly with dry rice strew to protect the seedlings from birds. The straw should be disease — and insectfree. (Remove the straw on the sixth day when the seedlings are large enough that birds will no longer eat them.)
Cover the seedbeds lightly with dry rice
10. Water the seedbeds three times daily to keep them moist.
Water the seedbeds three times daily
11. Tap the seedlings lightly with a broom at least two times a day to make sure that all the rice seeds come in contact with the base of the seedbed.
Tap the seedlings lightly with a broom
12. The seedlings are ready for transplanting 1014 days after sowing. Simply roll up the seedlings as you would a mat and carry them to the paddies for planting.
Roll up the seedlings
SOURCE: Low-external Input Rice Production (IIRR, 292 p.)