半夏 Pinellia ternata( Thunb.) Breit.原为野生 ,由于农田的精耕细作及荒坡闲地开垦 ,使得野生半夏商品日趋枯竭 ,现全国大部分省市均有栽培 ,但人工栽培的收获时间全国各地提法不一 ,为探索半夏的适宜收获期 ,笔者对半夏不同收获期的折干率及产量进行了研究 ,现报道如下 :1 Pinellia ternata (Thunb.) Breit is formerly wild. Because of the intensive cultivation of farmland and the reclamation of wasteland, wild Pinellia products are increasingly depleted. Most of the provinces and cities in China are cultivated, but the harvest time of artificial cultivation is national. There are different methods in different places. To explore the suitable harvest period of Pinellia, the author studied the dryness and yield of Pinellia ternate at different harvest periods. The report is as follows: 1