Onions have seeds. Usually when the onion matures, the bulb of the plant is cut off from the inflorescence and the seeds dry out and fall off on their own. They are then collected. Onion seeds then storage process, to consider some temperature conditions, such as temperature control at about 0, air relative humidity control at 70%, but onion seeds can only be used for one year.
What do onion seeds look like
Onion seeds are very small, half-moon shaped, black in color, slightly wrinkled and irregular epidermis, slightly reddish outside of the seed coat, but no luster.
How to plant onion seeds
Onion seeds should be sown in the fall in September-October, when the temperature is optimal, and it takes 8-9 months from sowing to maturity.1. Fertilizing: Onions need to choose a soil with strong fertility and water retention. Before planting, you need to prepare the ground for fertilization, and use rotted farmyard manure as the base fertilizer.2. Sowing: Spread the onion seeds evenly on the soil, and then cover with soil and straw, and keep the soil moist at a later stage.