2. Sow and raise seedlings. The flowering Chinese cabbage planted in early spring should be planted in sunny and dry plots with high organic matter content, and in sunny and warm weather or at the end of cold wave; Sowing in high temperature season in summer and autumn should be covered with sunshade net or straw to reduce rainfall and prevent soil hardening. The seed dosage of 667m ~ 2 is 0.4-0.5 kg, and the seedlings can emerge in 3 days after sowing. After the true leaves of the seedlings are unfolded, the over-dense weak seedlings should be deleted in time, and then the seedlings should be interplanted for 2-3 times to keep the seedling spacing uniform. When the seedlings have 1 leaf, they should be watered with 15% thin human excrement and urine, and then once a week, and the soil should be kept moist. Chinese cabbage can also be directly seeded, especially in hot and dry seasons.
3. Reasonable close planting. Before planting, combine the whole. 667 m2, 750- 1000 kg of decomposed manure. When the seedlings have 4-5 true leaves, they should be planted in time, and the planting density depends on the variety shape, cultivation season and cultivation purpose. Generally, the early-maturing varieties cultivated in summer are mainly harvested from Chinese flowering stems, which have the advantages of fast growth, short growth period and small plants, and should be planted closely, and the row spacing between plants should be13cm×16cm. Mid-and late-maturing varieties cultivated in spring and autumn often have long growth period, large plants, suitable climate and large growth, and most of them also harvest lateral flies, so it is not suitable to plant them too closely, and the plant spacing is better to be 16 cm× 20 cm.
4. Fertilizer and water management. After planting, apply some root fertilizer, and then topdressing with manure every 3-4 days, and the fragrance will gradually increase from 15% to 30%-40%. Early-maturing varieties should be watered to keep the soil moist when they are planted in high temperature and dry weather. By the time the flowering Chinese cabbage is formed, the plants will grow vigorously and the flowering Chinese cabbage will develop normally, so topdressing is not required. If the growth of flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese. After the main flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese flowering Chinese cabbage.
5, pest control. The diseases of Chinese cabbage are mainly virus diseases, especially in summer and autumn. The main pests are aphids, filter moths and cabbage worms, which should be prevented in time.
6. Harvest. The harvesting standard of Chinese flowering cabbage should be strictly controlled. Generally speaking, the flowering Chinese flowering cabbage is flush with the tip of high leaves and the buds are blooming at the beginning, that is, the so-called flowering time is the appropriate harvesting period. If you want to continue to harvest the lateral buds, you can cut the main flowers at the 2-3 leaves (nodes) at the base of the plant, and those who harvest once can cut them at the lower 1-2 nodes.