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在毛白杨无性繁殖法中,“接炮捻”育苗是现阶段生产上广泛应用的方法之一。几年来,我们对漳河林场“接炮捻”苗木进行了调查,以摸清其苗木生长规律,为进行科学管理,培育优质壮苗提供依据。一调查时间、方法及内容1978年,我们对三种茬口地(即前茬为泡桐地、大关杨地和休闲地)苗木采用标准行、定株进行高生长规律的调查。3月20—23日插炮捻。6月3日至10月4日,基本上是每一旬调查一次。8月下旬调查了日生长
In Populus tomentosa asexual reproduction method, “pick-twine” nursery is currently widely used in production one of the methods. In the past few years, we conducted a survey on the seedlings of Zhanghe Forest Farm that had been sprayed with gunpowder to find out the law of seedling growth and provide the basis for scientific management and nurturing high-quality seedlings. A survey of time, methods and content In 1978, we stubble to the three areas (that is, the former crop of Paulownia, Yang and Leisure Land Marks) nursery stock using standard lines, fixed-height investigation of the law. March 20-23 plug gun twist. June 3 to October 4, basically once every ten days of investigation. In late August investigated the Japanese growth