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不同松林根际促生菌的数量研究
引用本文:吴庆梅,黄宝灵,吕成群,陆丽,郭飞,李校雨,李莉.不同松林根际促生菌的数量研究[J].广西农业科学,2009,40(5).
作者姓名:吴庆梅  黄宝灵  吕成群  陆丽  郭飞  李校雨  李莉
作者单位:1. 广西大学林学院,南宁,530004
2. 广西派阳山林场,广西崇左,532500
摘    要:采用平板稀释法对广西南宁市郊区的湿地松、加勒比松、人工马尾松和飞播马尾松四种松林的根际促生菌进行计数分析,研究不同松林间根际固氮菌、解有机磷菌、解无机磷菌和解钾菌的数量分布.结果表明:(1)不同松林的根际促生菌总量差异明显,加勒比松林最多,人工马尾松林最少,其他两种松林相差不大;(2)各类根际促生菌数量在不同松林中都有明显的差异;(3)不同松林的促生菌数量都以固氮菌最多,解钾菌次之,解无机磷菌最少;(4)四种松林中,不同松林两两间根际促生菌的综合效应差异均达到显著水平;(5)主成分分析显示不同松林林地土壤肥力的排序是:飞播马尾松>湿地松>加勒比松>人工马尾松.

关 键 词:森林根际微生物  促生菌  数量分布  不同松林类型  土壤肥力

Population of growth-promoting rhizobacteria(GPR)in different pine forests
WU Qing-mei,HUANG Bao-ling,Lü Cheng-qun,LU Li,GUO Fei,LI Xiao-yu,LI Li.Population of growth-promoting rhizobacteria(GPR)in different pine forests[J].Guangxi Agricultural Sciences,2009,40(5).
Authors:WU Qing-mei  HUANG Bao-ling  Lü Cheng-qun  LU Li  GUO Fei  LI Xiao-yu  LI Li
Institution:1 Forestry College;Guangxi University;Nanning 530004;China;2 Guangxi National Paiyangshan Forest Farm;Chongzuo;Guangxi 532500;China
Abstract:To study the distribution and population of Azotobacter,inorganic phosphate-solubilizing bacteria,organic phosphate-solubilizing bacteria,silicate bacteria in rhizosphere of different pine forests,growth-promoting rhizobacteria(GPR) were isolated from rhizosphere of Pinus elliottii by aerial seeding,P.caribaea,artificial P.massoniana and P.mas-soniana in Nanning,Guangxi,and their populations were analyzed by plate dilution cultivation method.The results indicated that,the total population of GPR in differen...
Keywords:rhizosphere microorganism in forest  growth-promoting rhizobacteria  quantitative distribution  pine forest  soil fertility  
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