摘要
试验表明接种固氮菌能显著提高桉树苗木的生长及苗木各器官的生物量和N含量,接种苗木高生长比对照(不接种)增加29.81%、叶片数增加37.31%、叶片干重增加35.01%、茎干重增加55.59%、根干重增加78.93%、总生物量干重增加55.89%。不同菌株的增产效果存在差异,接种催娩克氏菌的效果较接种阴沟肠杆菌的好。接种+施N80mg/株处理的效果优于接种+施N30mg/株处理的效果。接种与施N肥的分析结果表明接种催娩克氏菌的效果等于施N80mg/株的效果。
The experiments showed that the effect of inoculation on
eucalypt was distinctive. The Eucalyptus urophylla seedlings inoculated with Klebsiella
oxytoca and Enterobacter cloacae strains were 29.81%, 37.31%, 35.01%, 55.59%, 78.93% and
55.89% greater in height growth, leaf number, leaf and stem dry matter, root and total dry matter
than the control (noinoculation). The seedlings with different nitrogenfixing bacteria displayed
distinct differences on growth. Those inoculated with the Klebsiella oxytoca strains were better
than that with Enterobacter cloacae and theri height growth, leaf , stem and root dry matter were
increased by 41.89 %,93.23%,107.09% and 127.12% in comparison with the uninoculated
seedlings in three months. The fertilization+inoculation experiments showed that the seedlings
applied with 80 mg N and the seedlings inoculated with Klebsiella oxytoca strains were the
best. \;
出处
《广东林业科技》
1999年第2期33-36,共4页
Forestry Science and Technology of Guangdong Province
基金
国家自然科学基金
"九五"攻关项目
关键词
桉树
接种
固氮菌
接种
eucalypt, inoculation, nitrogenfixing bacteria, effect