杨树嫩枝压条育苗,是张家口地区坝上张北县广大社员群众和社队林场的广大场员经过林业生产实践,摸索总结出来的一种育苗方法。实践证明,这种育苗方法优点很多,如苗源广,取条易,好操作,成活率高;育苗时间正处农闲间隙,不与农业争劳力、畜力。为坝上高原大搞群众性育苗运动,开创了一条路子。据统计,张北、康保、沽沅和尚义等县采用这种育苗方法育苗达5万余亩。现将具体方法简介如下: 一、抓住时机。杨树嫩枝压条育苗,坝上地区一般从6月上旬开始直到7月中旬止都可进行。如若过早,新生枝条过嫩,一不耐晒,二压条后不耐旱,不好成活;过晚幼苗不能木质化,过冬容易被冻死,但一般要掌握宁早勿晚的原则。压条时,最好趁阴雨连绵天或下午 Poplar tender shoots nursery, Zhangjiakou area is Zhangbei County community members and social security team of field members of the majority of field members through forestry production practice, explore a nursery method. Practice has proved that this nursery method has many advantages, such as Miao source wide, easy to take, good operation, high survival rate; nursery time is idle space, not with agriculture to fight labor, animal power. For the dam plateau populace nurturing mass campaign, creating a path. According to statistics, Zhangbei, Kangbao, Shangyuan and Shangyi counties use this nursery method nursery up to 5 million mu. The specific methods are as follows: First, seize the opportunity. Poplar tender shoots nursery, Bashang region generally from early June until mid-July can be carried out. If too early, new branches too tender, a lightfastness, the second pressure is not drought, poor survival; late seedlings can not lignification, easy to freeze the winter to death, but generally have to grasp the principle of rather sooner rather than later. Article, it is best to take advantage of rainy days or afternoon