»Planting Onions, Seed To Harvest- The Definitive Guide«
After a given proper period of harvesting onions, they can be used as seeds to grow new onions for continuous production.
As onions require full sun of 6-8 hours a day, nutrient rich soils, good drainage and slightly acidic conditions, they are spaced at 4-6 inches between bulbs and 8-12 inches between rows to allow free air flow.
Onions management
First, onions are categorised as long day, intermediate and short day however, the days light determine bulb formation. Plant either onion sets or seeds directly to grow them at 1/2 inch depth in rows and 12-12 inches apart and also space seeds an inch in planting and 4-6 inches apart after sprouting.
Similarly, for indoor planting, plant seed an inch deep in pots and germination takes place at 6th day under cool temperatures of 26 degrees centigrade while at 22nd day, put sunlight intense but short for onions. Prepare the garden, apply organic manure, soak in water, make a hole in soil bed and place onions seedlings into it and reduce on height of leaves of onions to reduce weight.
Space them at 6 inches apart, water them and keep them weed free and feed onions before bulb formation and keep soil moist always followed by mulching and harvesting when they are fully grown. Onions are fully mature when main stalk turns yellow or brown and fall down.
Furthermore, bend stalk over 90 degrees centigrade for 48-72 hour to fasten maturity and finally after harvest, fully dry onions in a shade for 2 weeks and store them.