聚合草一般只开花不结籽,或开花结籽,但不易收到,且种籽发芽率不高,故只能靠无性繁殖,而无性繁殖的增殖速度慢,一年只能增殖几十倍。为了加快繁殖速度,除了分株、切根繁殖外,还可采取“茎杆扦插法”。每年夏末秋初时,将当年春天栽植的聚合草的茎杆剪下,插在已整好的地里,使其产生不定根,伸出腋茎或不定芽,长成新株。这种繁殖方法的优点是:节省用种量,加速繁殖速度,扩大种植面积;不用挖蔸分株或切根,故不影响产草量;方法简单,易 Aggregate generally flowering flowers do not seed, or flowering and seed, but not easy to receive, and the germination rate is not high, it can only rely on asexual reproduction, and propagation of asexual reproduction slow, only a few times a year multiplication . In order to speed up breeding, in addition to ramet, cut root breeding, but also can take “stem cutting method.” Every summer and early fall, the stems of the polymerized grass planted in spring of that year are cut and inserted into an already well-formed field so as to give adventitious roots, stick out axillary stems or adventitious buds and grow into new strains. The advantages of this breeding method are: saving seed, speeding propagation and expanding planting area; no need to dig raccoon or cut root, so it does not affect the yield of grass; the method is simple and easy