| Characteristics | SERRY |
|---|---|
| Maturity days | 105-110 days after transplanting |
| Bulb shape | Oblong round |
| Bulb skin colour | Orange |
| Bulb weight | 95-105 g |
| Product Specialities | |
| Very good for storage | |
| Excellent for growing in rabi season | |
| High tolerence to bolting | |
| Medium to high pungency | |
Season:
May-June is best season for planting.
Seed rate: 10 kg/ha seeds are required for a hectare.
Seed treatment:
Treat the seeds with Azospirillum @ 400 g/kg of seed using rice gruel as adhesive, dry under shade for 30 minutes and sow them. Apply VAM (Vesicular Aurbuscular Mycorhizal) 1 kg/sq.m in the beds along with FYM 10 kg/sq.m before sowing.
Planting:
Plant 45 days old seedlings at a spacing of 10 cm apart on both the sides of the ridges.
Irrigation: After establishment irrigate at weekly intervals.
Application of fertilizers:
Apply FYM 25 t/ha, Azospirillum 2 kg and Phosphobacteria 2 kg/ha, N 50 kg, P 150 kg and K 75 kg/ha as basal dose and N 50 kg/ha as top-dressing is done at 30 days after planting. Apply Zinc
Pests:
Thrips and onion fly:
Thrips and onion fly can be controlled by spraying Methyl demeton 25 EC 1 ml/lit or Dimethoate 30 EC 1 ml/lit with Teepol 0.5 ml/lit.
Cutworm :
Cut worms can be controlled by drenching the soil with Chlorpyriphos @ 2 ml/lit.
Nematode:
Application of Carbofuran 3G 1kg a.i./ha or Phorate 10G 1 kg a.i./ha at 10 days after transplanting controls the nematode infestation.
Disease:
Leaf spot:
Leaf spot disease can be controlled by spraying Mancozeb 2 g/lit or Copper oxychloride 2 g/lit. Add 1 ml of Teepol to 1 lit of the spray fluid.
Harvest:
Irrigation is stopped on a week before harvesting. Harvest is done when 75 % of leaves dried off or top fall stage.
Yield:
The crop yields about 15 – 18 t/ha in 140 – 150 days.
Fertigation Schedule for Onion : Recommended dose: 60:60:250 kg / ha
So total requirement of fertilizers are as per below according to fertigation chart :
