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毛白杨是我国优良的速生用材树种,临汾县国营侯村苗圃,从1969年就进行繁育,但是由于种条不足,出苗率又低,不能满足大规模造林加速绿化祖国的需要。经过试验,我们认为冬季扦插育苗是繁育毛白杨的一种比较好的方法,1973年冬季采用沟底铺马粪直接扦插育苗0.5亩,1974年秋季调查,成活率达64.8%,平均苗高3.8米,地径3厘米,苗木生长旺盛。一、技术要求:1、种条的选择:挑选一年生,生长健壮无病虫害的苗木,利用其基部和中部进行扦插,一般要求插条长20厘米左右,上部必须有1—2个发育饱满的腋芽。2、扦插方法:于11月下旬,用犁在已全面整地的圃地中,按行距50厘米进行
Populus tomentosa is an excellent species of fast-growing timber in our country. Linhou County state-run Houcun nursery has been breeding since 1969. However, because of lack of species, the emergence rate is low, which can not meet the needs of large-scale afforestation and accelerated greening of the motherland. After the experiment, we think winter cutting propagation is a good way to breed Populus tomentosa. In the winter of 1973, 0.5 mu mu direct cuttage breeding with dunking was adopted. In the autumn of 1974, the survival rate was 64.8% and the average seedling height was 3.8 Rice, diameter 3 cm, vigorous growth of seedlings. First, the technical requirements: 1, the choice of species: Selection of annual, robust growth of pests without pests, the use of its base and the middle of cutting, the general requirements of cuttings about 20 cm long, the upper must have 1-2 full of axillary buds . 2, cutting method: in late November, with plow in the land has been fully prepared land, according to the line spacing of 50 cm