银杏幼树黄化的土壤原因及对策研究  

A study on young Ginkgo plants etiolation and the countermeasures

作　　者：蒋代华[1] 陈佩琼[1] 白厚义[1] 李昆志[1] 唐新莲[1] 骆东奇[1] 

机构地区：[1]广西大学农学院,广西南宁530005

出　　处：《广西植物》2002年第3期283-288,共6页Guihaia

基　　金：世界银行贷款第二期红壤开发项目 (桂农业科字 1996 4 4号 )

摘　　要：通过果园调查、盆栽试验、大田验证试验及室内化验分析 ,找出银杏幼树黄化的主要原因是 :土壤有效养分缺乏 ;p H低、酸度大 ;有效铝含量高 ,存在铝毒危害。并提出了相应的防治措施 :即施用 N、P、K、石灰、有机肥、B、Zn肥料 。According to the vestigations in orchard, pot experiments, field verifying experiments and indoor chemical analysis, we found that the main etiolating cause for young Ginkgo biloba L. plants was the lack of effective nutrients in soil,low pH value,high acidity,high active aluminium content,and the existence of aluminium toxicity.Corresponding preventive measure is provided in this paper, that is applying N?P?K fertilizer, lime, organic fertilizer, and B, Zn chemical fertilizers.

关 键 词：银杏幼树 黄化 土壤原因 对策 

分 类 号：S664.3[农业科学—果树学] S792.95[农业科学—园艺学]