How to plant onions and when to plant onions

1. Planting time

There are many varieties of it, and the planting time of different varieties will naturally vary, but the approximate time is the same, mostly concentrated around early September, which is probably the White Dew solar term. The temperature and climate at this time are more conducive to growth and are also easier to manage.

2. Germination and sowing

Its sowing method is very simple, just sow it directly. However, it is recommended to germinate the seeds before sowing. Soak the seeds in clean water for 12 hours, dry them and place them in an environment of about 23 degrees. When the buds appear, you can sow them. This will increase the probability of germination.

3. Timely Valuation

When the seedlings grow four true leaves, the value can be determined. Note that at this time, short seedlings, leggy seedlings, and diseased seedlings should be eliminated, and only strong seedlings should be selected, so that they can grow better in the later stage. The setting value is usually carried out at the end of October, and the spacing between rows and plants is controlled at about 20 by 15 centimeters.

4. Field Management

After the value is determined, attention should be paid to the management of fertilizer and water as well as the prevention and control of diseases and pests. The main topdressing options are urea and nitrogen, phosphorus and potassium compound fertilizers. During the peak growing season and when the bulbs are swelling, top dressing should be applied, which can be done together with watering. The main diseases to be prevented and controlled are rust, purple spot and downy mildew, and the main insect pest is onion thistle. Usually, you should ventilate more and drain water in time. When pests and diseases are discovered, the right remedy must be used.