Chinese flowering cabbage, also known as cauliflower and cauliflower, is a famous characteristic vegetable in Guangdong. The growth and development of Chinese flowering cabbage can be divided into four periods: (1) seed germination period. Under suitable temperature and soil moisture conditions, it takes about 4-5 days from seed germination to true leaf exposure. (2) Leaf growth period: the leaf growth period of plants is from true leaves to budding, which generally takes about 20-30 days to form 8- 10 leaves (including undeveloped leaves). (3) The formation period of cauliflower. The period from plant germination to main moss collection is the formation period of cabbage moss. The temperature is 20-25℃ and 10- 15 days can grow Chinese cabbage moss, but the Chinese cabbage moss is small and the quality is poor. When the temperature is 10- 15℃, the development of cabbage moss is slow, and better quality cabbage moss can be formed in 20-30 days. (4) flowering and fruiting period. The flowering and fruiting period is from the first flowering of plants to the mature harvest of seeds. It usually takes about 50-60 days.

Chinese flowering cabbage belongs to semi-cold-tolerant vegetables, and different growth stages require different temperatures. The optimum temperature for seed germination is 20-30℃, and the temperature for leaf growth is slightly lower. Cauliflower needs a cold climate, and the optimum temperature for growth is 15-20℃. The daytime temperature is 20℃ and the nighttime temperature is 65438 05℃. Chinese cabbage moss is well developed, with high yield and good quality. The optimum temperature for flowering and pollination of Chinese flowering cabbage is 15-24℃. Chinese flowering cabbage is a long-day plant, but most varieties are not strict about photoperiod, and flower bud differentiation and bolting are mainly affected by temperature. The whole growth process of Chinese flowering cabbage needs sufficient light conditions to facilitate photosynthesis, accumulate more substances and improve the yield and quality of Chinese flowering cabbage moss. Chinese flowering cabbage has shallow root system distribution, weak absorption capacity, short growth period, large growth and high requirements for fertilizer and water. The whole growing period requires the soil to have sufficient water and nutrient supply. The amount of nutrient elements absorbed by Chinese cabbage is the most, followed by potassium and the least. Every 1 0,000 kg of cabbage moss needs to absorb 2.2-3.6 kg of pure nitrogen, 0.6- 1 kg of pure phosphorus and 0/.1-3.8 kg of pure potassium.