施肥对蓝桉幼林生长的影响  

Study on the Effect of Fertilization on Eucalyptus globulus Plantation in Yunnan

作　　者：何蓉[1] 蒋云东[1] 曾芳群[1] 陈德艾[2] 赵明寿 王萍[2] 

机构地区：[1]云南省林业科学研究院,云南昆明650204 [2]云南省保山市林业局,云南保山678000

出　　处：《林业科学研究》1999年第5期474-478,共5页Forest Research

基　　金：世界银行贷款1991~2000 年国家造林项目;森林资源发展与保护项目

摘　　要：经５ ａ 研究结果表明，在云南省保山市石灰岩红壤地区施肥能明显促进蓝桉幼林生长，肥效在１．５ ａ时最大，９ 个施肥处理的树高、胸径平均增长３３．６９％ 、４８．３９％ ，造林后５ ａ 时，生长反应已经呈下降趋势，９ 个施肥处理的树高、胸径平均增长１６．４５％ 、１０．７１％ 。Ｐ肥是促进蓝桉增产的主要因素，每株施４３０ ｇ 钙镁磷肥的几个处理增产效果较好，Ｎ、Ｋ 肥增产效果不明显，有机肥对蓝桉生长有促进作用。在９ 个施肥处理中，处理６（钙镁磷肥做底肥，用量４３０ ｇ·株－ １，追施尿素６５ ｇ·株－ １ ）、处理９（钙镁磷肥做底肥，用量４３０ ｇ·株－ １，追施尿素１３０ ｇ·株－ １，追施氯化钾５４ ｇ·株－ １）、处理１０（在处理９ 的基础上增施５ ｋｇ 有机肥）肥效明显。经济效益最佳的处理为处理６fertilization tests of different match and ratio of N,P,K were conducted on young Eucalyptus globulus plantation in limestone red soil in Baoshan City for 5 years. The results of tests indicated that fertilization obviously promoted the growth of young E. globulus plantation. At 1.5 years after afforestation,the growth response was at the highest point,the height and DBH of the tree were promoted by 33.69%,48.39% for the 9 manuring treatments. At 5 years after afforestation,the growth response were promoted by 16.45%,10.71% for the 9 manuring treatments. Phosphoric fertilizer is the main factor in promoting the growth of E. globulus plantation.Applying 430 g calcium magnesium phosphate as base fertilizer for each tree,can make the best growth response. The growth responses of N,K fertilizer is not obvious. Organic fertilizer can promot the growth of the trees. Among the 10 treatments,the 3 treatments of No.6 (65 g carbamide,430 g calcium magnesium phosphate),No.9 (130 g carbamide,430 g calcium magnesium phosphate ,54 g KCl),No.10 (treatmet No.9 added with 5 kg organic fertilizer) gained remarkable growth effect. The treatments with best economic benefit are No.6 and No.9.

关 键 词：蓝桉 施肥效应 幼林生长 经济效益 林木施肥 

分 类 号：S725.5[农业科学—林木遗传育种]