Sonchus sonchifolius seeds are small and light (1000-grain weight is 0.8- 1.2g), and the tip strength is weak. Therefore, the land is leveled and raked. Before ploughing, base fertilizer should be applied, as long as the water content is good, so as to ensure that the seedlings are neat, complete and Miao Zhuang. In the northern region, spring sowing is suitable; Sowing can be done in spring and autumn in southern China. However, in order to solve the shortage of green feed in winter and spring by using winter fallow fields, autumn sowing is better; In the south of the tropical region, you can sow all the year round. The sowing method is based on

It is better to drill, drill or drill. Because some branches are few, the sowing amount should be increased appropriately. The general sowing amount is11.25-15kg/ha, the row spacing is 20-30cm, and the sowing depth is 2-3cm. In areas with poor soil conservation, soil should be filled in time after sowing. All spring seeds must strengthen impurity removal; There are few weeds when sowing in autumn, and it is generally not necessary to remove impurities at seedling stage. After turning green in the next spring, weeds will grow in large numbers and impurities can be removed twice. It is advisable to sow grassland in spring with 3-4 stubbles; It is advisable to plant 5-6 plants in autumn. Autumn seeder can be used in winter.

Cut 1-2 times, and cut 3-4 times after turning green. If it is used in the leaf stage, it must be used after the root system is developed and large leaves are formed. The stubble height is1-2 cm; When the stem is cut after extraction and the stubble is not less than 3cm, it is best to cut it in bud stage when drying hay or using it as silage raw material. After mowing the grass every time, it is best to apply an appropriate amount of chemical fertilizer. When the crown hair of the top fruit of the plant is exposed, it is suitable to collect seeds. The life span of seeds is short, generally two years, and the germination rate of seeds will be greatly reduced in the second year, and the germination rate is the highest in that year.

Bitter vegetables have few pests and diseases, and sometimes aphids do harm to them. If it happens, it can be sprayed with 40% dimethoate emulsion diluted with 1000-2000 solution.