摘要
【目的】筛选出更适合广西桉树生长的专用肥料,为桉树林的高产栽培提供理论依据。【方法】采用单因素完全随机区组设计,按施用肥料为长效缓释肥、桉树专用肥、桉树复混肥设3个处理,各处理养分含量投入相同,进行3年的追肥试验,测定各处理树高、胸径和平均单株材积,比较长效缓释肥与普通桉树专用肥对桉树生长的影响。【结果】施用长效缓释肥的处理树高、胸径和平均单株材积在第一次追肥1年后均优于其他两个处理,差异达显著或极显著水平;桉树专用肥处理的树高和平均单株材积在第二次追肥半年后均优于桉树复混肥处理,差异达显著水平,施用长效缓释肥对桉树生长起到最为积极的作用。【结论】在等养分含量投入施肥的情况下,长效缓释肥促进桉树生长的效果最优。
[Objective]The purpose of this experiment was to study the effects of different specific fertilizers on Eucalyptus growth in Guangxi, select the most effective specific fertilizer for Eucalyptus growth, and provide therotical references for high yielding cultivation of Eucalyptus plantation. [Method]Single factor and complete randomnized block design was adopted to measure tree height, diameter at breast height （DBH）, and average individual volume of tree in three topdressing treatments with same nutrients rate （slow ＆ long-acting fertilizer, specific fertilizer, and compound mixed fertilizer） for three consecutive years, in order to compare the effects of different fertizliers on Eucalyptus growth. [Result]One year after the first topdressing, tree height, DBH, and individual volume of tree in slow ＆ long-acting fertilizer treatment were all superior to that of the other two treatments with extremely significant difference or significant difference. Six months after the second topdressing, tree height and average individual volume of tree in specific fertilizer treatment were higher than that of compound mixed fertilizer with significant difference. Slow ＆ long-acting fertilizer was proved to be most effective in promoting Eucalyptus growth. [ Conclusion ] Under the same nutrients rate application, slow ＆ long-acting fertilizer had more obvious promotion effect on growth than common specific fertilizer.
出处
《南方农业学报》
CAS
CSCD
北大核心
2012年第8期1154-1157,共4页
Journal of Southern Agriculture
基金
"十一五"广西林业科技重大项目(桂林科字[2010]第6号)
关键词
桉树
追肥
长效缓释肥
桉树专用肥
桉树复混肥
肥效
Eucalyptus
topdressing
slow ＆ long-acting fertilizer
specific fertilizer
compound mixed fertilizer
fertilizer efficiency
