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近年来,各地对速生杨树繁殖方法总结出很多先进经验,在育苗、造林等方面都取得了良好效果,对加速“绿化祖国”起到了一定的作用。现把延安当地有关小叶杨育苗、造林的一些实践简介如下。小叶杨生长适应性很强,在我国分布很广。性喜湿润肥沃土壤,亦耐盐碱;育苗简便,栽培易活;可长成高大乔木,是营造防护林、用材林及城市绿化的速生树种。一、育苗采用南泥湾林场试验成功的小叶杨插枝落种育苗法,各地全获得了良好效果。这种方法就是把种子成熟的枝条采下来,均匀地插在苗
In recent years, many advanced experiences have been summed up in poplar poplar breeding methods, and good results have been achieved in raising nurseries and afforestation and playing a certain role in accelerating “greening the motherland.” Yan’an is now the local leaflet Yang nursery, afforestation some of the practices are as follows. Populus growth adaptability is very strong, widely distributed in our country. Sex hi humid fertile soil, also salinity; seedling easy, easy to grow and live; can grow into tall trees, is to create shelterbelts, timber and urban afforestation of fast growing species. First, nursery seedlings using Nanniwan Bay successful trial of Populus euphratica cuttings seedling method, all over get good results. This method is to take the mature branches of the seed taken down, evenly inserted in the seedlings