What is the right time and method for an onion nursery for the kharif crop?
2 Answers
For kharif onion in Karnataka, sow the nursery around May to June and transplant in July, using kharif suited varieties like Bhima Super, Bhima Dark Red, Agrifound Dark Red or Arka Kalyan. Make raised seed beds about 10 to 15 cm high and 1 metre wide to drain off rain, add FYM, and treat seed with a fungicide like thiram or carbendazim before sowing. You need roughly 8 to 10 kg of seed per hectare. Sow in shallow lines, cover lightly, and protect from heavy rain with a shade or low cover. Keep beds moist but not waterlogged and watch for damping off. Seedlings are ready to transplant at about 6 to 7 weeks, pencil thickness.
Raised beds are a must in kharif. My first nursery on flat ground got waterlogged in the monsoon rain and damping off killed half the seedlings. After I switched to high raised beds with good drainage the nursery came up clean.