不同氮肥类型下杨树苗木生长及积累碳氮的效果研究  

Effects of Poplar Seedling Growth and Carbon and Nitrogen Accumulation under Different Nitrogen Fertilizer Types

作　　者：谢晓勇 Xie Xiaoyong(Nuluerhushan National Nature Reserve Administration,Chaoyang 122000,Liaoning,China)

机构地区：[1]辽宁努鲁儿虎山国家级自然保护区管理局,辽宁朝阳122000

出　　处：《林业科技情报》2022年第4期49-51,共3页Forestry Science and Technology Information

摘　　要：为了比较不同类型氮肥对杨树苗木生长及碳氮积累的效果,特在建平县选择了2种无机类氮肥与1种有机类氮肥,以不同形态氮肥开展了比较试验,以不施氮肥的处理作为对照,以杨树的生长情况以及碳氮积累情况作为指标进行分析。结果表明,在杨树的苗高、地径和生物量方面不同形态的氮肥施入后均可起到促进的作用,整体来说地上部分的生长以酰胺态氮肥的施入效果较好,地下部分以硝态氮的施入效果较好,各种形态氮肥均可以增加杨树氮积累、地上部分淀粉的积累,氮肥的施入不利于地上部分可溶性糖的积累,有机氮肥的施入降低了地下部分碳水化合物的积累。In order to compare the effects of different types of nitrogen fertilizers on the growth and carbon and nitrogen accumulation of poplar seedlings,two kinds of inorganic nitrogen fertilizers and one organic nitrogen fertilizer with different forms of nitrogen fertilizers were selected in Jianping County to carry out comparative experiments.The treatment was used as a control,and the growth of poplar and the accumulation of carbon and nitrogen were used as indicators for analysis.The results showed that the application of different forms of nitrogen fertilizers could promote the seedling height,ground diameter and biomass of poplar trees.On the whole,the growth of the aerial part was better with the application of amide nitrogen fertilizer.The application effect of some nitrate nitrogen is better.Various forms of nitrogen fertilizer can increase the nitrogen accumulation of poplar and the accumulation of starch in the aerial part.The application of nitrogen fertilizer is not conducive to the accumulation of soluble sugar in the aerial part,and the application of organic nitrogen fertilizer reduces the The accumulation of carbohydrates in the underground part.

关 键 词：氮肥 形态 杨树 碳氮积累 

分 类 号：S71[农业科学—林学]