Chinese kale is a widely planted vegetable in South China, which may also be directly related to the growth of Chinese kale. The temperature in the south is high and kale is heat-resistant, so the planting period of kale in the south is very long, and it can be cooked three times a year, divided into early maturity, middle maturity and late sleep.

The early maturity stage is sown in the middle of August and late summer, and harvested in the middle of 10, which is also the shortest among the three time periods. After sowing in 1 1 month, the middle-maturing Chinese kale grows for 3 months, and is harvested in the following year 1 month, and the last late-maturing period is in1February. /kloc-After 0/2 months, the southern part of China will enter wet and cold winter rainy weather, and it is difficult for Chinese kale to sprout. Therefore, the late-maturing period is in1February at the latest, and it will be harvested in March of the following year, with a growth period of 3 months.

Method for plan Chinese kale

First, the timing.

If planted in Beijing, it can be supplied all year round. For early-maturing varieties, such as willow early kale, it should be cultivated in the open field to ensure the supply in June-June. Mid-and late-maturing varieties need to be cultivated in protected areas from September to March of the following year to ensure the supply of 1 1 in May of the following year. If you plant in July-September, you should choose a cold planting place.

Second, carry out soil preparation.

Nursery land should be selected. Cruciferae vegetables should not be planted in sandy loam or well-drained loam. Before planting, fine soil preparation should be carried out and sufficient base fertilizer should be applied. Apply 3000-4000 kg of decomposed pig manure or compost and 25 kg of calcium superphosphate per mu of land, and mix them evenly with soil. Make a flat border after fertilization and a high border when planting in summer.

Third, the method of colonization.

When sowing, direct seeding or seedling transplanting can be used. Generally in Beijing, seedlings are transplanted. An acre of land needs 75- 100g seeds, and the seeds should be of high quality. If it is open cultivation, the time should be chosen in the afternoon, if it is protected cultivation, it should be carried out in the morning. Before planting, water it the day before, so it is more convenient to dig holes and plant seedlings the next year. If the seedlings are strong enough, it is best to dig them on the day of planting.

Fourth, planting density.

When planting, we should master the appropriate planting spacing. The row spacing of early-maturing varieties is 25 * 20cm, middle-maturing varieties is 30 * 22cm and late-maturing varieties is 30 * 30cm. In the process of planting seedlings, don't plant them too deep, but plant them flat or low with the soil surface of the seedlings. It is necessary to water the seedlings once in time after planting, which can help the seedlings to resume growth.