When will the onion grow well, and what should be paid attention to in the process of growing?

The time to sow onions in autumn must be controlled. If you sow early, the onion seedlings will be covered with moss. If the sowing time is too late, before the weather turns cold, the onion seedlings are still weak and easy to freeze to death, so it is generally best to sow three days before and after the Millennium solar term. Let's take a look at the matters that should be paid attention to when raising onions.

First, the variety. There are many onion varieties on the market now. Varieties with high yield, good quality and easy storage should be selected, such as Ruzi 1, Yu Zi No.2 and Zixing. These varieties all yield more than 5000 kilograms per mu, belonging to high-yield and high-quality onion varieties.

After selecting a variety, you should make a seedbed. Fertile soil with good water retention and loose soil can be selected for onion seedbed, and it is best to use soil where vegetables such as green onions and garlic have not been planted in recent years. Before planting, base fertilizer should be applied. You can choose fully decomposed farmyard manure as the base fertilizer, then add a proper amount of chemical fertilizer, dig deep into the soil, make a border with a width of 1.5 meters, and water it.

Onion sowing is generally dry seed sowing. After onion seeds are evenly spread on the seedbed, cover it with a thin layer of soil. The soil should not be too thick, which will easily affect the emergence of onions, as long as no seeds can be seen on the surface. After covering the soil, a proper amount of herbicide can be sprayed to prevent the growth of weeds in the seedbed.

Because the onion is covered with extremely thin soil, it will dry easily, so after sowing, it can be covered with a layer of wheat straw, which can play a role in moisturizing, and can also be sprayed with water according to the situation of the seedbed. When the onion seedlings grow to 60%-70%, you can uncover the wheat straw. At this time, the seedbed is easy to harden. At this time, it is advisable to water and sprinkle a small amount of urea. After the onion leaves grow four true leaves, they can be planted.

When planting onions, large and small seedlings should be planted separately, which is beneficial to the later growth and management of onions. The general planting period is from the end of 10 to the beginning of10. The temperature is 4-5 degrees at this time. After planting, onions need a recovery period of 30 days. In the recovery period, onions will grow a good root system, which is conducive to cold resistance. Don't plant too deep. In general, it is best not to bury the five-pronged stock. The row spacing is 20cm, and the plant spacing is15cm. After planting, watering with small water and large water is easy to cause soil hardening, which is not conducive to the recovery of onion growth.