The test on rhizome expanding outside Phyllostachys heterocycla cv.pubescens stand showed that the average diameter of rhizome increased with enhancing of tending measure.By deep plowing,weeding and loosening the soil,the length of rhizome was shorter but the number of rhizome joint increased.The total length of new rhizome by applying fertilizer to the base of bamboo was longest (7 75 m,1 4 m longer than that by deep plowing,weeding and loosening the soil).The total length of new rhizome by combinati...