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What are the land preparation methods for growing Coptis chinensis in natural forests?
After the site is selected, land preparation can be carried out. It is generally done in autumn. First, all the moso bamboo, thatch grass, etc. in the forest are cut down and cleared away, and the woodland is cleared; all trees are left uncut. According to the shading condition of the tree canopy, the shading degree should generally be kept above 70%. Where the shading is too dense,