Can I grow onions in winter?

When planting onions in winter, you must master the planting time . Sowing too early or too late may affect the growth and yield of the onions. Farmers can also choose onion varieties that are cold-resistant and have wide adaptability, and do a good job of field management. So can onions be planted in winter? Let’s take a look with the editor below.

1. Can onions be planted in winter?

It is possible to grow onions in winter, but you need to be careful to take appropriate measures to ensure their normal growth. The suitable planting time is usually around October every year. In some areas, seedlings can also be raised in spring. For example, in places where spring warms up early and winter cools down late, green onion varieties with a longer growing period can be sown and transplanted in summer.

2. How to grow onions in winter

1. Soil selection

Choose a location with fertile soil and good drainage. Alkaline soil is more suitable for the growth of onions. Scallions are best grown in fertile, well-drained, slightly acidic soil.

2. Land preparation and fertilization

Apply enough base fertilizer, which will help the growth of green onions. Before planting, the land should be deeply plowed, and the plowing depth should be more than 20 cm. After turning the soil, an appropriate amount of decomposed organic fertilizer or compound fertilizer should be applied to increase soil fertility.

3. Sowing method

Before sowing, the soil should be loosened again and watered thoroughly. Then, spread the seeds evenly on the soil surface and cover with a thin layer of soil. After sowing, water should be applied in time to keep the soil moist to promote germination.

4. Water and fertilizer management

Keep the soil moist while the onions are growing. When watering, avoid overwatering to prevent the soil from being too wet and causing the roots of the shallots to rot. Appropriate nitrogen fertilizer or organic fertilizer should be applied. When applying fertilizer, the principle of "small amounts and multiple times" should be followed to avoid adverse effects of excessive fertilization on the growth of green onions.

5. Temperature management

Chives prefer a cool climate and have strong cold and heat resistance. The suitable temperature for germination is 13-20 degrees Celsius, the suitable temperature for stem and leaf growth is 18-23 degrees Celsius, and the suitable ground temperature for root growth is 14-18 degrees Celsius.

6. Pest and disease control

After transplanting, there may be diseases and pests due to the temperature. You should use pesticides such as Benomyl for spraying, but you should also pay attention to the specific situation. If there are no diseases and pests, it is best not to use pesticides .

The above is an introduction to whether onions can be planted in winter. Winter onions have strong cold resistance and will not be frozen to death even at a low temperature of -30℃, so they can safely overwinter in the open field. As the weather turns colder, you need to add soil on both sides of the onion ditch to keep the onion whites from freezing and losing water.