The nutrition of cauliflower is more abundant than that of ordinary vegetables. It contains protein, fat, carbohydrates, dietary fiber, vitamins A, B, C, E, P, U and minerals such as calcium, phosphorus and iron. The cauliflower texture is tender and tender, delicious and delicious. It is easy to digest and absorb after eating. Its tender stem fiber is soft and delicious after cooking. It is suitable for middle-aged and elderly people, children with weak spleen and stomach and weak digestive function.
Years of production confirmed that the vegetative growth temperature of cauliflower can be between 8-24 °C, while the flower bulb growth temperature is between 15-18 °C, the growth of the flower bulb is slower below 10 °C, and the temperature is shorter than 25 °C. The calyx and flowering branches are rapidly elongated, and the flower bulbs are small and loose. In addition, under unfavorable temperature and environment conditions, the calyx grows rapidly, forming green or purple hair on the surface of the flower ball, which reduces the product quality. In summary, the flowering temperature of the flower ball is relatively narrow, and only the production period is based on the growth period of the variety, and the growth time of the flower ball is arranged within a suitable temperature range, so that the cultivation can achieve an ideal harvest.
The conditions required for the conversion of cauliflower from vegetative growth to reproductive growth are also very different. Cabbage can be vernalized at high temperature in the seedling stage. Therefore, the temperature required for flower buds to pass through the vernalization stage is higher than that of cabbage, and it is almost insensitive below 5 °C. At this stage, the requirements for the length of sunshine are not strict, of course, the differences between different varieties are very large.
According to many years of production practice, for example, early-maturing varieties with a growth period from colonization to harvesting for 40-60 days, the temperature through vernalization is 5-30 °C, the time required is about 10 days; the growth period is 70-90 days. The temperature of the mature varieties through vernalization is 5-25 °C, the time required is 20-30 days; the late-maturing varieties with the growth period of more than 100 days pass the vernalization temperature of 5-15 °C, and the required time is about 40 days. Therefore, it is not difficult to see that the shorter the growth period of cauliflower, the higher the temperature required by vernalization, the shorter the time, and the longer the growth period, the lower the temperature required by vernalization and the longer the time.
1. Site selection and land preparation: It is better to choose fertile and well-drained sandy loam for planting. The terrain is better with sunny and flat land. The cauliflower seeds are small, the soil preparation must be meticulous and at the same time, the fertilizer should be applied intensively, the intensive cultivation should be done, the base fertilizer should be applied, and the water should be poured to make the feet, the soil strong, the ground level and the soil free of pests and diseases.
2. Choose suitable fine varieties and plant them at appropriate time; after underground planting, spray the soil surface with 600-800 times of new high-fat film, which can protect the water-proof evaporation, sun-proof and drought-resistant, heat-preserving anti-freezing, anti-soil layering, suffocation and Isolation of pests and diseases to increase the emergence rate.
3. Fertilization, watering, weeding, pest control; watering at any time, reasonable fertilization, cultivating and weeding, spraying targeted anti-pest and disease drugs, greatly improving the utilization of active ingredients of pesticides and nutrients, not afraid of solar evaporation, can adjust The amount of water absorbed, drought and rain.
4. The product organ of cauliflower is a flower ball formed by the condensation of flowering branches, flower shafts, flower buds, etc. The flower ball is both a reproductive organ and a nutrient storage organ. The shortened flowering branches are in a rapid elongation period, and the stalks are sprayed. The plant stems are thick and strong, and the flower ball is hypertrophy. At the same time, it can improve the ability of resisting disasters, reduce the amount of pesticides and fertilizers, and reduce the residual poison. It is a vegetable with low crude fiber content, fresh and tender quality, rich nutrition, delicious flavor and strong natural taste.
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