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三七在栽培过程中若大量使用农药，会使三七商品中砷Ａｓ、铅Ｐｂ、锅Ｃｄ、锡Ｓｎ等有毒重金属含量偏高。本实验引进了日本ＥＭ生物技术，对三七进行无公害栽培。经过近３年的实验，ＥＭ生物技术用于三七栽培显示出一系列优良的效果，具有提高出苗率１１％以上，促进三七生长，延长三七生长期，促进三七根系发达，防治病虫害，降低生产成本，保护环境等作用，并使三七中的有毒重金属含量大大降低。
If a large number of pesticides are used in the cultivation process of Panax notoginseng, the content of toxic heavy metals such as arsenic As, lead Pb, pot Cd, and tin Sn in Panax pseudoginseng will be high. This experiment introduced the Japanese EM biotechnology to carry out pollution-free cultivation of Panax pseudoginseng. After nearly three years of experimentation, EM biotechnology has shown a series of excellent results for Panax pseudoginseng cultivation, which has improved the emergence rate by more than 11%, promoted the growth of Panax notoginseng, prolonged the growth period of Panax notoginseng, promoted the development of Panax notoginseng root system, and prevented pests and diseases. , Reduce production costs, protect the environment, etc., and make the content of toxic heavy metals in Panax notably reduced.