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毛白杨生长快,寿命长,树干通直,材质优良,栽培历史悠久,是我省营造用材林、农田防护林和“四旁”绿化的主要优良树种之一。由于毛白杨扦插育苗成活率低,当前生产上多采用嫁接、埋条、留根等方法繁殖。但这些方法不同程度地存在种条用量大、费工、产苗量低等问题,致使这一乡土树种的繁殖工作受到一定影响。为了尽快繁殖毛白杨,以满足造林需要,我场曾于1978年10月7日开展了毛白杨带叶柄扦插育苗试验,以探索毛白杨扦插育苗的最适时间。具体作法如下: 一、试验地选择我场属黄河故道地区,沙质土壤,干旱瘠
Populus fast growth, long life, trunk straight, good material, cultivation has a long history, is our province to create timber forests, farmland shelterbelts and “all around” one of the main tree species. Due to the low survival rate of Populus tomentosa cuttings, the current production of more use of grafting, buried strips, root and other methods of reproduction. However, these methods, to varying degrees, exist a large amount of dosage, labor-intensive, low-yielding and other issues, resulting in the reproduction of this native species affected to some extent. In order to popularize poplar as soon as possible to meet the needs of afforestation, my field was on October 7, 1978 Populus tomentosa cuttage seedling trials carried out in order to explore the optimum time Populus cuttage seedling. Specific practices are as follows: First, the pilot to choose my field is the Yellow River Old Course area, sandy soil, arid barren