半夏(Pinellia ternata(Thunb.)Breit)为常用中药,能燥湿化痰,降逆止呕。1978年忠县收购半夏达65,000公斤以上。半夏是一种田间杂草,落实生产责任制后,田间管理精细,杂草被清除,故1984年半夏收购量降至15,000公斤左右,致使半夏紧缺。1982年四川省中药材公司将半夏家种作为科研项目下达,1983年忠县科委也将此纳入重点科研项目。通过几年的试种,取得了较好的效果。现将试验 Pinellia (Pinellia ternata (Thunb.) Breit) is commonly used traditional Chinese medicine, can dampness and phlegm, Jiangni vomiting. In 1978, Zhongxian acquired more than 65,000 kilos of Banxia Da. Pinellia is a field weed, implementation of the production responsibility system, fine field management, weeds were removed, so the purchase of Pinellia in 1984 dropped to 15,000 kg, resulting in a shortage of Pinellia. In 1982, Sichuan Province Chinese herbal medicine company Pinellia family as a scientific research project issued in 1983 Zhongxian Science and Technology Commission will also be included in key scientific research projects. Through several years of trial planting, achieved good results. Now test