The latest planting time of Chinese cabbage in autumn

Planting Chinese cabbage in autumn is the most suitable time in the south. In the southern subtropics, it is mainly planted in autumn and winter, and it can be harvested or left in the field in winter. Cabbage will bolt after spring, and only cabbage can be planted in summer. So it is mainly sowing in autumn. So how to determine the sowing time when planting Chinese cabbage in autumn is a problem for some growers. Let's solve it together.

1. Planting time

The main time for autumn cabbage is to sow seeds before and after the Beginning of Autumn. Of course, it is best to look at the weather. Even if the temperature is too high for the Beginning of Autumn, it can be postponed. Late-maturing varieties with long growth time can be sowed a few days earlier when the weather is suitable. It is also possible for medium-maturing varieties with short growing period to sow a few days later. After all, high-temperature seedlings do not grow well. Disease will also decrease when the temperature is cool.

2. Sowing method

It is best to plant on soil where cruciferous vegetables have not been planted. Sow seeds in ditches 8 cm deep. After watering and soaking the soil, the seeds are scattered evenly in the ditches. Cover about centimeters of soil, not too thick soil. It would be nice to cover the soil lightly. It takes about one jin to sow seeds per mu. Water and moisturize every day. If the temperature is high, it should be watered in the evening, and each watering must be drenched.

3. Seedling raising and transplanting

After germination, only need to moisturize, will gradually grow into seedlings. The interseedling is carried out when the two true leaves are long and young, which is mainly to remove the weak and diseased seedlings, and the real leaves can be transplanted to the field when there are about 5 true leaves, which can be planted in the field when there is no rain on cloudy days, and watered after transplanting, and then watered every morning and evening, because in the slow seedling stage, the root system does not take root and cannot absorb water, so it must be moisturized in order to restore growth as soon as possible.

4. Water and fertilizer management

Chinese cabbage needs more nutrition, mainly the application of sufficient base fertilizer, the use of enough farm fertilizer, the fertilizer effect is very long. Topdressing should be based on the period, before transplanting, 20 jin of ammonium sulfate per mu is used, watering and fertilizing, mainly to promote growth; after transplanting, 40 jin of ammonium sulfate is used per mu, mainly to promote stems and leaves; before wrapping, 30 jin of calcium superphosphate is applied; finally, in the middle of the core, 30 jin of ammonium sulfate is applied.

Autumn is the main time for planting Chinese cabbage in the south and north, and the planting time is generally around the Beginning of Autumn, when the temperature is suitable. A small amount of planting can be direct seeded, while a large number of plants need to raise seedlings, which is relatively easy to survive. There is no need to replenish seedlings when there are no seedlings in the field.