毛竹枯梢病发生的土壤条件分析米-南京林业大学学报.PDFVIP

南 京林业 大学学 报 第 23 卷第 4 期 Vo 1. 23 No .4 1999 年 7 月 Joumal of Nanjing Forestry University Jul. 1999 毛竹枯梢病发生的土壤条件分析米 林强 幅建省森林病虫害防治检疫总站 福州 350003) 摘要 通过 32 块典型样地的调查、分析，数据经不同方法处理结果表明:毛竹枯梢病。rato­ sphα旷的 phyllostαchydis Zhang) 的发生随土壤紧实度的增大、土壤湿度的下降而感病程度加重;对 土壤养分含量的分析表明:枯梢病的发生与林地养分含量的多少关系密切，其发病程度与土壤 全氮和速效磷含量呈极显著的负相关，与土壤何和棚水平的交互作用呈显著负相关，土壤中过 多的活性铁可助长病害的发生。 改善感病竹林地土壤的理化性质是综合治理该病的一个关键 环节。 关键词 毛竹枯梢病:土壤条件:分析 中 图分类号 S763 文献标识码 A 文章编号 1000-2006 q999 )04-0043-04 The Analysis of the Soil Conditions Related to the Dieback Blight of Phyllostachys pubescens Lin Qian forest Insect and Disease Control Station of Forestry Department of Fujian Province Fuzhou 350003) Abstract The result of the investigation of Mao bamboo forest on 32 typical plots distributed in Fujian implicated that the genesis of dieback blight of phyllostαchys pubescens might have been influenced by losing soil fertility , dete- riorating soil physical and chemical properties in extensive management of bamboo land before. According to the re- sults of simple correlation analysis and multiple regression analysis , the genesis severity of Mao bamboo dieback blight had a highly significant negative correlation to the amount of total N and available p , a significant positive cor- relation to the available fe , and a significant negative correlation to the mutual effect of available K and B in the soils. In addition , the results also indicated the dis