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山药属薯蓣科 ,蔓生作物 ,需支架栽培 ,山药入土很深 ,地下块茎是主要食用器官 ,是大众化滋补食品。山药是高产高效作物
Yam is Dioscoreaceae, vine crops, to be scaffold cultivation, deep yam into the soil, underground tubers are the main edible organs, is a popular nourishing food. Yam is a high yield and efficient crop