Rhizome coptidis is one of the most important export medicinal materials and the annual market demand of it is about 3000t. Shizhu of Chongqing and Lichuan of Hubei are the largest producing area of Rhizome coptidis in the world, and the annual production is about 80% of the world's total. In recent years, after the implementation of good agricultural practices (GAP) and the Promotion of the local government, the scal of planting Rhizome coptidis is becoming more and more biger, and the benefit of planting ...
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