The management of sweet potato seedbed is a key technology related to the production of sweet potato seedlings. It mainly pays attention to the following issues: After the potato shoots are unearthed, the flat film is removed. If the temperature is too high, the seedbed plastic film will be fully ventilated at noon and closed in the evening. When the temperature and temperature are at 20 degrees Celsius, all the films will be uncovered, and the seedlings must be cultivated for 7 days before cutting. When cutting the seedlings, high-cutting seedlings should be adopted, and the bases should be kept in sections 1-2 (branch buds) to prevent seedbed soils. Bacteria are brought to the field by seedlings. The seedbed can increase the number of seedlings by multiple high-cutting seedlings. Mix water and fertilize after cutting two crops. If the length of the seedling reaches 25 cm, it cannot be planted in Daejeon. It is necessary to cut the seedlings and cut them to increase the propagation coefficient so as to avoid waste.
