根插

根插	gēn chā	to plant roots; to propagate from root cuttings
根	gēn	root / basis / classifier for long slender objects, e.g. cigarettes, guitar strings / CL:条 / radical (chemistry)
插	chā	to insert / stick in / pierce / to take part in / to interfere / to interpose
插	chā	old variant of 插