(1) Seedling cultivation.

① Miao Qi preparation. The seedling period of green cauliflower is short, so a plot with good drainage and rich in organic matter should be selected as a seedbed. The seedbed should be fertilized with sufficient base fertilizer and nitrogen and phosphorus compound fertilizer to ensure the supply of nutrients during the seedling period. Each planting area of ??667 m2 requires about 5 to 6 m2 of seedbed land.

② Sow seeds. The sowing period is pushed forward 30 to 35 days according to the planting time. The time can be shorter in summer and autumn when the temperature is high. The seeding rate is 225 to 30 grams per 667 meters. It can be broadcast or on-demand. The sowing depth is 0.8 to 1.0 cm.

③Management in the seedling stage. Spring seedlings are raised from January to March. Pay attention to the cold protection and heat preservation of the seedbed, and it is advisable to keep it at 20 to 30°C. Summer seedlings are raised from June to August, which is the hot and rainy season. The seedlings should be raised in plots with good ventilation, high terrain and good drainage. Pay attention to rain and sun protection. When raising seedlings, care should be taken to prevent the seedlings from growing too long, resulting in the appearance of small old seedlings. In addition, the seedlings should also be prevented from growing too long to form weak seedlings.

(2) Colonization. Spring planting should be carried out when the average outside temperature reaches above 10°C. The row spacing of planting plants varies slightly depending on the varieties. The density is controlled at 2200 to 2700 plants per 667 m2. Early maturing varieties can be appropriately denser, and mid-maturing varieties can be slightly sparser.

(3) Field management

① Cultivating. Generally carried out 5 to 6 days after planting, cultivating helps to loosen the soil and promote root growth.

②Top dressing. The first top dressing is carried out 15 to 20 days after planting. It is best to apply 25 to 30 kilograms of nitrogen, phosphorus and potassium compound fertilizer per 667 m2. For the second top dressing, after the top flower bulb appears, apply 15 to 20 kilograms of nitrogen, phosphorus, and potassium compound fertilizer.

③Water. Watering can be done after top dressing, usually once every 5 to 7 days. Pay attention to ventilation after watering.

(4) Prevention and control of pests and diseases. Green cauliflower has strong disease resistance in the field and is generally rarely infected with diseases. However, in recent years, green cauliflower black rot has occurred more frequently. In production, attention should be paid to selecting disease-resistant varieties and disinfecting seeds before sowing. In the early stage of the disease, spray 72 Agricultural Streptomycin Sulfate soluble powder 3500-4000 times or 30DT wettable powder 500 times. In addition, because green cauliflower is more resistant to fertilizers and has broad and dark green leaves, it is susceptible to damage by cabbage caterpillars throughout the growth period. Pay attention to spraying pesticides during the seedling stage and after planting. Generally, no pesticides are sprayed after budding.