Sowing of Seeds/ Transplanting
Direct seeding and transplanting are
two general methods for planting rice. The primary difference
between the two methods is that in the transplanting method,
seedlings are first raised in the nursery before they are planted in
the main field whereas in direct seeding, the seed is sown directly
in the main field either by wet or dry method.
Lower labour cost is the major advantage of direct seeding. The savings in labour may substantially reduce production cost, particularly in areas where labour cost is high. Also directly seeded rice may mature 7 to 10 days earlier than transplanted rice. This saving in time is important especially where multiple cropping pattern is used.
Transplanting 60-85 kg/ha
Broadcasting 80-100 kg/ha
Dibbling 80-90 kg/ha
Dry method: Dress seeds with the following fungicides on
the previous day of sowing (12 to 16 hours ahead) at dosage given below:
1. 0.2% Fongorene 50 WP 2 g/kg of seed/l of water
2. 0.2% Bavistin 50 WP 2 g/kg of seed/l of water
Treatment with the above fungicides either dry or wet protects the seedlings from blast disease up to 30 to 60 days after sowing.
The above seed treatment can also be recommended for giving protection from seedlings blast in endemic areas.
Soak paddy seeds in CuSO4 (0.25%) and ZnSO4 (1%) solution for 24 hours. Drain and keep for sprouting. For soaking 1 kg of seed, 1 litre of micronutrient solution would be needed
Seedlings are ready to be pulled out when they
attain the stage of 4-5 leaves, about 18 days after sowing in the case of
short duration varieties and 20-25 days after sowing in the case of medium
duration varieties. Under ill drained conditions, the long duration
varieties like Pankaj, Jagannath and IR5 may be planted 30 days after
Seedlings more than 30 days old when transplanted in the field recover slower than younger seedlings, especially, if they suffer stem and root injury. However, during the virippu season, age of seedlings can go up to 35 days in case of medium duration varieties and 25 days for short duration varieties. If the seedlings are over aged, plant at a closer spacing with 3 or 4 seedlings per hill and apply extra dose of nitrogen @ 5 kg/ha as basal dressing.
Transplant seedlings of appropriate age for the variety @ 2-3 seedling per hill in rows, at spacing as shown below. Leave wider row of 30 cm after every 3 m to facilitate spraying and other cultural operations. Transplant seedlings at a depth of 3-4 cm
|Rice Growing Seasons of Kerala||
|References||Kerala Agricultural University. 2011. Package of Practices Recommendations: Crops.14th edition. Kerala Agricultural University, Thrissur- 360 p.|