怀山药是驰名中外的四大怀药之一,来源于薯蓣科植物怀山药(Dioscorea oppositaThunb.)的块根,因产于河南省古怀庆府(现焦作市温县)一带而得名,为山药的道地品种。本文对怀山药的产地加工作一简述。一、采收怀山药的采收时间冬春季均可,而以冬季为优。冬令采收一般在霜降后,当叶片枯落时方可开始。其方法是从山药地的一端起始,顺垄挖45～65cm的深沟,逐一将山药挖出。起挖中务必小心,谨防损伤。而后掰净其上泥土,折除根茎(俗称芦头,贮藏作来年种栽之用),其余块根入药。 Dioscorea opposita is one of the four major Chinese medicines that are well-known both at home and abroad. It originated from the roots of Dioscorea opposita Thunb. and was named after the ancient Huaiqing House (now Wen County, Jiaozuo City) in Henan Province. The authentic variety of yam. This article briefly describes the place of production of yam medicine. First, the harvest time of harvesting Chinese yam can be available in winter and spring, while winter is preferred. Winter harvesting is generally followed by frost, when the leaves begin to fall. The method is to start from one end of the yams, and dig 45-65cm deep trenches along the ridge to dig out the yam one by one. Care must be taken in the excavation to prevent damage. After that, the roots were removed and the roots and stems (commonly known as reeds, stored for planting in the following year) were used to remove the roots. The remaining roots were used as medicine.