The growth temperature and environment of Chinese cabbage, can Chinese cabbage still grow after the first frost?

Different growth stages of Chinese cabbage require different temperatures. The su

The growth temperature and environment of Chinese cabbage, can Chinese cabbage still grow after the first frost?

Different growth stages of Chinese cabbage require different temperatures. The suitable temperature for seed germination is 20℃-25℃, the suitable temperature for cluster stage is 17℃-22℃, and the suitable temperature for heading stage is 12℃- 18℃. In the vegetative growth stage, Chinese cabbage needs sufficient sunshine, and the water demand of Chinese cabbage is different in different growth stages. Generally, the water demand in seedling stage is not large, but it is more in cluster stage.

First, the growth temperature and environment of Chinese cabbage

1. Chinese cabbage is a semi-cold-tolerant vegetable, and different growth stages require different temperatures. The optimum temperature of seed germination is 20℃-25℃, the optimum temperature of cluster stage is 65438 07℃-22℃, and the optimum temperature of heading stage is 65438 02℃-65438 08℃.

2. Chinese cabbage needs a certain amount of sunshine and water in the vegetative growth stage. It takes about 20-30 tons to irrigate Chinese cabbage once per mu. From sowing to harvesting, irrigation is generally required 12- 15 times. Chinese cabbage must have sufficient water supply, and photosynthesis can be successfully completed.

3. Chinese cabbage has different water requirements at different growth stages. Generally, there is not much water demand at seedling stage, but more at cluster stage. Attention must be paid to watering at seedling stage and tree-clumping stage. After watering, intertillage should be done in time to keep the topsoil loose and dry, and the subsoil should maintain a good water-holding state.

4. The soil in which Chinese cabbage grows can be sandy loam, loam or clay loam with deep soil layer, water retention, good drainage, fertile and soft soil and high organic matter content, and the soil pH value is neutral or weakly acidic.

Second, can Chinese cabbage grow after the first frost?

1, Chinese cabbage can grow after the first frost. Cabbage is a cold-resistant vegetable, which likes cold climate, so it can grow in the first frost. If Chinese cabbage is planted in high temperature season, it is prone to diseases and pests, or the yield of Chinese cabbage is very low.

2. Cabbage has a strong resistance to low temperature. Even if the temperature reaches -3℃, it can grow as usual, but if it reaches -8℃, the temperature will continue to drop to about-1 1℃, and Chinese cabbage will suffer from freezing injury.

3. Although Chinese cabbage is cold-tolerant, it should be noted that if Chinese cabbage basically grows at heading stage, there is no need to take heat preservation measures. If the cabbage is still in the lotus stage, some warm-keeping measures need to be taken.