Four-season non-irrigation afforestation method in semiarid hilly region

The invention discloses a four-season non-irrigation afforestation method in a semiarid hilly region. The method comprises the following steps: seedling cultivation, and plantation in spring, summer, autumn and winter, wherein the step of seedling cultivation comprises seedling raising with a fungus soil nutrition pot, seedling raising by freezing seedlings, and seedling raising with autumn seedlings; in early spring days, the autumn seedlings and pot seedlings are used for plantation; in late-spring and summer, frozen seedlings and greenhouse pot seedlings are used for afforestation; in autumn, the pot seedlings are used for afforestation; and in winter, the autumn seedlings and the pot seedlings are used for plantation. The method has the advantages of low afforestation cost, high survival rate, rapid afforestation rate, good effect, extensive applicable area, etc.; meanwhile, the method realizes one-time shaping plantation, does not need replanting and watering, and overcomes the historical problem of inca