天麻存在第一(蜜环菌)与第二(土壤)二个营养来源,土壤养分可通过表皮进入球基并参与代谢活动。第一营养主要影响天麻产量,药效试验证实第二营养如锌与天麻质量关系密切,应合理施锌。 Gastrodia there are the first (Armillalla) and the second (soil) two nutrients, soil nutrients through the epidermis into the ball-based and involved in metabolic activity. The first nutrition mainly affects the yield of gastrodia tuber, the efficacy test confirmed that the second nutrition such as zinc and gastrodin quality are closely related to zinc should be reasonable.