1, reed head propagation method When yam is propagated by reed head, the part with buds on the root tuber is often used as reed head. In winter, five thick roots are selected as planting materials. After cutting, it should be placed in a humid and warm environment in time, buried in sand containing organic matter, and germinated about 20 days after watering and hydrating.

2.Reiyoshi breeding method can take out or pick up the landed Reiyoshi from the axils of leaves when the leaves and stems near the ground wither before and after first frost, dry it in the shade for 2-3 days, and then store it in a closed environment. Attention should be paid to pests and diseases during this period, and frequent ventilation is needed. After one year's culture, tuberous roots can be obtained as seedlings.

3. Planting and breeding method Planting and breeding is one of the breeding methods of yam, which can be carried out in spring. First, choose perfect and high-quality seeds as planting materials and put them in the sand to promote tooth growth. The sweating rate of the soil layer is kept at about 30% every day, and it germinates up and down for about a month, and it is planted after the leaves are released.

4. Cutting propagation is one of the common propagation methods of yam. The key point is to select well-developed leaves and stems with axillary buds as cuttings in perfect season, then cut them into oblique shapes at the bottom, insert them into wet cultivation soil, cover them with a layer of agricultural plastic film, and keep the bonsai soil moist, and they can germinate and take root in about 20 days.

5. Other breeding methods in yam bean have their shortcomings, so people usually come up with a more extreme way. We will save the yam bean planted last year for the planting season and plant yam bean on a large area of land. This way can reasonably avoid unnecessary problems, and at the same time, it can grow rapidly, which can not only double the total number, but also ensure the total number.

6. Other common problems When planting yam, it is more suitable to choose sandy land with fertile land, solid drainage pipes and dry soil layer. A certain amount of organic fertilizer should be released before germination, which is beneficial to the rapid growth and development of seedlings. Early Chinese yam can be watered without watering, which can promote its root system to widen downwards. After more than ten months, the yam was deeply watered to make its root system develop healthily.