中林４６杨扦插育苗技术中林４６杨属美州黑杨派，它是中国林科院培育出的新型优良杨树。中林４６杨抗病虫害、抗有害气体污染、抗盐碱、生长迅速，是造林的速生优质树种。现将其育苗有关技术介绍如下：１整地施肥选用排水良好的沙壤地块，耙平、耙细、作垄、垄距１ｍ，垄... Zhonglin 46 Yang cuttage nursery techniques in forest 46 Yang is a black poplar pie, it is China Academy of Forestry nurture a new type of good poplar. Zhong Yang 46 Yang disease and pest, anti-harmful gas pollution, anti-saline, rapid growth, afforestation is a fast-growing high-quality tree species. Now its seedling-related technologies are described as follows: 1 preparation of soil fertilizers selection of well-drained sandy soil plots, rake flat, rake thin, for the ridge, ridge spacing 1m, ridge ...