施氮水平对长白落叶松幼苗生长的影响  

Effects of Nitrogen Application on the Growth of Larix olgensis Seedlings

作　　者：程鑫 

机构地区：[1]辽宁省抚顺林业局,辽宁抚顺113000

出　　处：《防护林科技》2017年第9期55-56,共2页Protection Forest Science and Technology

摘　　要：长白落叶松是东北地区的主要用材林树种。以抚顺地区的长白落叶松幼苗为研究对象,通过不同的氮元素供应量处理,研究落叶松对氮元素的生长响应。结果表明:落叶松幼苗株高对不同氮元素的响应显著,随着氮供应量的增加而增加,后期处理增加幅度降低;在落叶松生物量对不同氮元素的响应上,针叶、茎部和总体生物量随着氮供应量的增加而增加,而根系部分对氮元素的供应没有响应。Larix olgensis is widely distributed in the northeastern region and is the main timber species. In this pa-per, the growth response of Larix olgensis to nitrogen was studied by treatment of different nitrogen supply in Fushun area. Result shows that the plant height of L arix gmelinii seedlings has a significant response to different nitrogen elements,and increase with the increase of nitrogen supply,and the increase of later treatment decrease. In response to the biomass of different larch biomass, the needles , stems and whole biomass increase with the increase of nitrogen supply, while the root part did not respond to the supply of nitrogen.

关 键 词：氮肥 落叶松 幼苗生长 

分 类 号：S791.22[农业科学—林木遗传育种]