文献类型：期刊文献

中文题名：微量元素对尾叶桉幼林生长的影响

英文题名：Effects of micronutrients on the growth of Eucalyptus urophylla

作者：杨曾奖[1] 徐大平[1] 陈俊勤[2] 刘玉粦[2]

第一作者：杨曾奖

机构：[1]中国林业科学研究院热带林业研究所;[2]广东省林业局

年份：2005

卷号：26

期号：2

起止页码：91-94

中文期刊名：华南农业大学学报

外文期刊名：Journal of South China Agricultural University

收录：CSTPCD;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金资助项目 (396 30 2 4 ) ;广东省水利厅科研项目"高效水土保持林营建及植被恢复技术的研究"的内容之一

语种：中文

中文关键词：微量元素;硼;尾叶桉;缺素症;幼林;生长

外文关键词：micronutrients; boron; Eucalyptus urophylla; deficient symptoms

分类号：S792.39

摘要：为研究桉树的微营养,在花岗岩发育的严重水土流失立地上开展了尾叶桉施肥试验.结果表明:微量元素的缺乏不同程度地影响了尾叶桉的生长,特别是硼素的缺乏.在施用大量元素肥料的同时,硼的添加使得尾叶桉生长显著加快;4 5年生时,全素肥料处理的尾叶桉胸径、树高生长是缺硼处理的2 30 2 %和173 5 % .在不添加硼素的情况下,不仅严重影响了生长,同时表现出典型的硼素缺乏症状:枝条组织坏死成肿瘤状,叶腋间可见丛状腋芽。
A fertilizer experiment was carried out to study the effects of micronutrients on the growth of Eucalyptus urophylla on a seriously eroded hilly land where soils are developed from granite. Results showed that deficiency of micronutrients had a negative effect on tree growth of E. urophylla incoordinately, especially while boron (B) was absent. Tree height and DBH growth under all nutrients treatment had 73.5% and 130.2% higher than those in the B deficient treatment at 4.5 years after planting, respectively. Without B application, tree grew very slowly and had very typical B deficient symptoms, such as bad tissue of young branches, emergence of multiple buds in axillary, and unusual growth of stems and branches.