黑龙江省为了提高马铃薯产量,几年来推广了近十个抗疫丰产的优良品种。由于马铃薯繁殖系数过低(一般仅十倍上下),而用种量又大(每公顷需三千斤左右),以致良种普及受到影响,有的良种甚至在推广普及过程中就退化了。在我所党支部的领导下,针对这个问题作了研究,我们先后研究成功了马铃薯块茎的切单芽块、掰芽、分株、截枝扦插 Heilongjiang Province in order to improve potato production in recent years to promote the nearly ten high-yielding varieties of high yield. As the multiplication coefficient of potato is too low (usually only ten times up and down) and the amount used is too large (about three thousand kilograms per hectare), the popularity of the seed is affected. Some of the seedy even degenerated during popularization. Under the leadership of our party branch, this issue has been studied, we have studied the success of the potato tubers cut single shoot blocks, breaking buds, ramets, cutting cuttings