Determine the optimal sowing period according to the characteristics of the varieties. The south of the high temperature and rainy, can take the open ground shade net cover way to sow. Prepare 10 square meters of seedbed per acre of field, apply 0.5 kilograms of vegetable compound fertilizer, leveling the seedbed after pouring enough water, covered with a thin layer of mud. After the emergence of seedlings in time to control temperature and water control, seedling spraying 2 ‰ ~ 3 ‰ urea water solution 1 ~ 2 times. 2 pieces of true leaves at the time of seedling. Seedling standard: thick stalks, short internodes, large and thick leaves, 5 to 6 true leaves, seedling age 35 to 40 days. Refer to the above operation for fall or fall-winter cultivation. Fixed planting 2000 to 2500 kilograms of rotted organic fertilizer per mu, or 50 kilograms of vegetable-specific compound fertilizer, plowing and deep application. Southern rainstorms, it is appropriate to deep ditch raised bed planting, bed width 1.5 meters (including the ditch), planting double rows, plant spacing 50 to 60 cm. Early-maturing varieties mu planted 2500 plants, medium-maturing varieties mu planted 2300 plants, late-maturing varieties mu planted 1500 to 1600 plants. High temperature season is preferred in the evening or cloudy day planting, planting after watering enough to live water. Field management After the living tree applied a dilute manure or fast-acting nitrogen fertilizer, and then fertilizer 4 to 5 times, the first 1 to 2 times each time per mu of urea 5 kg, after 3 times each time per mu of urea 15 kg. Flower ball formation in the early stage, the temperature is 18 ~ 25 ℃, increase the amount of fertilizer, increase the application of phosphorus and potassium fertilizer, to promote the growth of leaves and flower ball. Cauliflower like moist, leaf cluster growth and flower ball formation period of large water demand, must supply enough water, so as not to affect the growth of flower ball, the phenomenon of hairy flowers. High temperature and drought in the early morning and evening watering, irrigation cooling, irrigation water to the border ditch is not water appropriate, timely drainage after heavy rain. Overwintering cultivation in the pre-winter control of the amount of fertilizer, cultivate soil root protection, improve the plant's ability to resist the cold, in order to safely overwintering. Before and after wintering fertilizer, before and after spring fertilizer to promote seedling fertilizer, the beginning of the ball reapplication of fertilizer. When the flower bulb is white, put the leaves outside the flower bulb on the flower bulb to prevent sun or frost, keep the flower bulb white, and can avoid direct contact with pesticides on the flower bulb to ensure product safety. Harvesting The flower bulb is fully grown, the surface is rounded, the edge is about to fall apart when harvesting, the flower bulb with a few leaves to protect the flower bulb. Prevention and control of diseases and insects Cauliflower production process is relatively light, the pests are mainly beetles, cabbage moths and oblique moths, etc., concentrated in April to May and September to October damage. When planted in large areas, it can be trapped by frequency vibration moth trapping lamps, and can also be used in the prevention and control of ampersand, elimination, vegetables, 2% Suavi, Bacchus one and other agents.