几种施肥处理对桉树生长的影响  

Effect of Different Fertilizer Treatments on the Growth of Eucalyptus

作　　者：蒋雪刚 林武 邓玉华 韦建秋 李林艳 雷定战 翟章贵 任世奇[3] 

机构地区：[1]广西国有黄冕林场,广西柳州545619 [2]广西国有派阳山林场,广西宁明532500 [3]广西林业科学研究院,广西南宁530002

出　　处：《桉树科技》2014年第2期38-42,共5页Eucalypt Science & Technology

基　　金：广西科学研究与技术开发计划项目(桂科攻1123004-3B)

摘　　要：本文以桉树无性系DH32-29和GL9为试验对象,通过设置不同肥种及用量施肥处理研究其对这2种无性系生长的影响。结果表明:在本文设置的肥料有效养分梯度下,DH32-29胸径生长对肥料有效养分含量高低无显著差异,而GL9胸径生长、DH32-29树高生长和单株材积生长表现出明显的高有效养分促进作用;GL9树高和单株材积前期生长较快,后期生长潜力不足;DH32-29生长量较GL9大。Growth of two Eucalyptus clones, DH32-29 and GL9, were studied after application of different types and rates of fertilizer. Results showed that diameter at breast height （DBH） of DH32-29 had no significant differences between high and low levels of applied fertilizer. In contrast, DBH of GL9 and also tree height and single tree volume of DH32-29 differed significantly among treatments, with the fertilizers that provided higher levels of available nutrients giving greater growth. Tree height and single tree volume of GL9 showed a trend of faster growth in earlier stage but slower growth potential in later stages. The growth of DH32-29 was greater than that of GL9.

关 键 词：肥种 用量 桉树无性系 生长 

分 类 号：S725.5[农业科学—林木遗传育种]