杨树截干造林追施氮肥对地径和苗高生长的影响  

Effects of Stem-cuttings of Populus L. Topdressed with Nitrogen on Diameter and Height Growth of Seedlings

作　　者：庞忠义 Pang Zhongyi(State owned Xinmin City Mechanical Forest Farm,Shenyang 110300,China)

机构地区：[1]辽宁省国有新民市机械林场,辽宁沈阳110300

出　　处：《防护林科技》2018年第4期49-50,共2页Protection Forest Science and Technology

摘　　要：采用4个水平追施氮肥进行杨树截干造林试验,结果表明:追施氮肥能够促进杨树截干苗生长,各处理水平与对照相比,差异显著,以50g·株^(-1)施用量效果最好,苗高达2.87m,地径达2.96cm。Experiments of stem-cuttings of Populus L.were conducted by adopting four levels of topdressing nitrogen fertilizers.Result shows that topdressing of N fertilizer can promote the growth of Populus L.cuttings.Compared with the control,the treatment levels are significantly different.The optimal effect is 50 g·strain-1,and the seedling height is 2.87 mand the ground diameter is 2.96 cm.

关 键 词：杨树 截干造林 追施氮肥 生长量 

分 类 号：S792.11[农业科学—林木遗传育种]