Will onions seed? Is his seed its seed?

Onions can bear seeds, and seeds are its seeds. The seed of onion is a black half-moon seed in onion flower.

Breeding method:

Large bulb seed collection method, the mother plant adopts mature large bulbs. Sow in September -65438+ 10 in the first year, and expose the seedlings in winter or store them for the winter.

In the summer of the following year, large bulbs were harvested and excellent individuals were selected. After four days' storage, the infected plants were eliminated and planted in the field in September-165438+1October. It takes about 2 1-23 months to harvest seeds in the spring and June of the third year in severe cold areas.

After repeated furrow selection in field and storage period, the variety purity and seed quality of this seed collection method are obviously higher than that of two-year seed collection method, and it can be used for original seed production. Disadvantages are long seed collection period, troublesome storage, much use of large bulbs and high cost.

The best sowing time of onion is from September to 10, and the most suitable time is after mid-September, when the weather is cooler in most areas and the germination rate is high after sowing.

Before sowing onion seeds, it is best to turn over the sun, then soak the seeds with warm water at 50℃ and wash off the waxy layer of the seeds. Sprinkle the decomposed organic fertilizer on the soil to be sown, then dig the soil deeply and level the land, so that the border can be simply trimmed.

When sowing, you can drill, keeping the row spacing at about 10 cm and the ditch depth at about 3 cm. Seeds can be covered with thin soil and then simply watered, and will germinate in about 5 to 7 days.

Onion has strong adaptability to soil, so it is suitable to use fertile, loose and well-ventilated neutral loam. Sandy loam is easy to obtain high yield, while clayey loam has full bulbs, good color and storage resistance. The root system of onion has a weak ability to absorb fertilizer, so it needs sufficient nutritional conditions to achieve high yield. Every1000kg onion needs to absorb 2kg nitrogen, 0.8kg phosphorus and 2.2kg potassium from the soil. The application of trace elements such as copper, boron and sulfur can significantly increase the yield.

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