When will white dew onions be planted in 2022?
The best time to plant green onions in autumn is during the solar term of Bailu, that is, from Bailu to the autumnal equinox, and the best time to plant green onions is from September 7 to September 22, 2022. White dew onions have strict requirements on sowing date, and are generally sown between the white dew and the autumnal equinox. When sowing too late, onion seedlings are weak and easy to die in winter, and grow slowly after turning green in the second year, which affects their maturity and yield. Sowing too early, pulling weeds and sowing in the next spring is not suitable for planting onions.
The suitable sowing time is 60-70 days before the onion stops growing, and the onion seedlings grow to two leaves and then thaw. The planting time of Bailu onion varies from region to region. In northern China, it is generally advisable to sow in late August and sprout in early September.
Matters needing attention in planting onions
1, planting bed arrangement
Green onions need deep soil, so we need to dig deep into the planting bed. This is because green onions need to be cultivated many times in the future and need to be dug deep. Sowing scallion seeds can be directly sowed, and scallion seeds can be evenly spread on the seedbed. Before sowing, water the seedbed and cover it with a thin layer of soil.
2. Transplanting and planting
When green onion seedlings can be transplanted, we should choose strong seedlings for transplanting, and we can plant them separately according to big seedlings, medium seedlings and small seedlings. When transplanting scallion, we should dig a planting ditch with a depth of 15cm, arrange the transplanted scallion seedlings in turn according to the plant spacing of about 5cm, then cover the soil, and pay attention to the branching points of scallion leaves.
Step 3 pour frozen water
The purpose of planting Bailu onion with frozen water is to prevent seedling death caused by freezing injury and drought. Generally, autumn seedlings have three true leaves, and the height of seedlings is about 10cm. Before and after the light snow, that is, when it is civilized during the day and frozen at night, a thin layer of manure is combined with fertilization to raise the ground temperature, and then a layer of manure or raw manure is covered to ensure the safe overwintering of seedlings.