一、分根繁殖应在秋分至寒露之间进行。分根繁殖要选３－４年生的植株，将全株掘起，掘出后去掉附土，用快刀将根的连接部切开，伤口要立即涂硫酸铜或高锰酸钾溶液消毒。切开的每个新株上都要有根，栽种时根要舒展开，填土时，根茎要低于地面，当填土至三分之一时，可将根... A root-split breeding should be carried out between autumnal cold dew. Roots to reproduce the election of 3-4 years of plants, the whole plant up, remove the excavated earth, with a sharp knife to cut the root of the connection, the wound should be immediately coated with copper sulfate or potassium permanganate solution disinfection. Cut each new plant must have a root, when planting roots to stretch open, filling, the rhizome should be lower than the ground, when the fill to one-third of the time, the root can be ...