Dandelion is usually propagated by seeds. The seeds have no dormancy period, and can be sown at any time from spring to autumn. According to the demand of the field, it can also be sown in the greenhouse in winter. The strip sowing is used in the open field direct seeding. The front cross ditch is opened on the border according to the row spacing of 25-30cm, the sowing width is about 10cm, and the seeds are covered with 1cm soil after sowing, and then slightly suppressed. The sowing rate is 0.5-0.75kg/mu. Sowing in flat bed, 1.5-2.0kg per mu. The sowing amount per mu of dandelion with 1.5-2.0kg per mu and good quality is only 25-50g per mu. Sow the grass on the back cover for heat preservation, remove the grass cover when the seedlings are emerging, and the seedlings can emerge in about 6 days.
In spring or autumn, the roots of wild dandelion can be dug and transplanted into a proper plot with a row spacing of 15cm * 10cm. It is better to transplant with water to ensure survival. In October, the seedlings will be planted in a prepared greenhouse with a planting density of 10cm * 5cm. Pay attention to frequent watering, and choose to go on sale during New Year's day and Spring Festival.
In October, the seedlings were planted in the same way as before. In the first ten days of March, the temperature in the shed was low, and after one month, the seedlings could be harvested.
In order to make the white and tender part of the petiole elongate, cover the soil at seedling emergence, 1-2cm at a time, 4-5 times can increase 5-10cm from the white and tender part.
