Sweet potato germination-promoting and seedling method

The invention discloses a sweet potato germination-promoting and seedling method. The method is characterized by comprising the following steps: (1) seed pretreatment; (2) culture matrix preparation; (3) nutritional fertilizer preparation; (4) sowing; (5) transplanting and field planting. In the provided method, the seed is processed in advance, the nutrients of culture matrix are reasonably compounded and can be absorbed by the crops rapidly, and moreover, the matrix contains a plurality of bioactive substances and antibiotics, which can kill the insects directly. The germination rate of sweet potato is increased, the fertilizer has the advantages of lasting fertilizing effect, air permeability, water permeability, and water-retaining property, and the method has the advantages of cost saving, simpleness, practicality, and easy promotion.