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利用杨树种子育苗是良种选育和杨树复壮的最有效的途径之一。由于杨树种子极小,水分含量低,活性存活时间很短,种子育苗技术性要求比较严格。本文采用泥床播种的方法,不仅很好的解决了杨树种子对水分的要求,而且播种后不用覆土,很好的克服了小粒种子覆土厚度难以掌握的难题,实现了种子发芽率70%以上,产苗10万株/667m2的效果。
The use of poplar seedling is one of the most effective ways to breed and rejuvenate elite seeds. Due to the very small poplar seeds, low water content, short survival activity, seedling technical requirements more stringent. In this paper, the use of mud bed sowing method, not only a good solution to the poplar seed moisture requirements, and without casing after sowing, a good overcoming the difficult to grasp the thickness of the small seed covering the problem, to achieve a seed germination rate of 70% , Seedlings 100,000 / 667m2 effect.