1. Isolated reproduction. The reproductive method of separating and cultivating vegetative organs of plants into independent new individuals. This method is simple and has high survival rate. The separation period varies with the type of medicinal plants and the climate, and is generally carried out in late autumn or early spring during the dormancy period of plants. According to the different parts of the parent plant, it can be divided into sub ball (such as crocus), sub block (such as yam, bletilla striata, etc.), sub root (such as salvia miltiorrhiza, aster, etc.), sub branch (such as amomum villosum, herba angustifolia, etc.). 2. Layering propagation. Bury the branches or stems of the parent plant into the soil, or
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