热带作物学报2013，Vol.34Issue(7)：1228-1231,4.DOI:10.3969/j.issn.1000-2561.2013.07.005
竹荪不同生育期土壤微生物动态变化
Dynamic Change of Soil Microorganisms at Various Growing Stage of Dictyophora
摘要
Abstract
From April to July in 2010,we investigated the dynamic change of soil microorganisms at various growing stage of dictyophora by tracing the total amount of bacteria,fungi,actinomycetes in soil.The results showed that bacteria in new soil was less than that in the successive cropping soil at the early growing stage.On the contrary,the total amount of fungi and actinomycetes were slightly larger than that in successive cropping soil.At the following stage,the total quantity of bacteria and fungi did not show great variation,while the number of actinomycetes obviously changed.A greater quantity and degree variation of actinomycetes could be observed in continuous cropping soil than that in the new soil.The changing tendency of fungi quantity in the new soil always consisted with the growth of dictyophora when dictyophora began to vigorously grow up.The total amount of fungi did not sharply increase in the continuous cropping soil.Furthermore,in both new soil and successive cropping soil,it was found that the total number of bacteria and actinomycetes declined to its lowest when dictyophora growed up with the highest speed.After that,as the growth of dictyophora slowed down,the total amount of bacteria gradually increased to the maximum and then reduced again.The accumulation of the metabolites from dictyophora and soil microorganisms in the successive cropping soil need to be responsible for such variation of soil composition,which also inhibited continuous cropping of dictyophora.关键词
竹荪/生育期/土壤微生物/动态变化Key words
Dictyophora/ Growing stage/ Soil microorganisms/ Dynamic change分类
农业科技引用本文复制引用
常颖萃,蒋文静,石妍,林世强,叶舟..竹荪不同生育期土壤微生物动态变化[J].热带作物学报,2013,34(7):1228-1231,4.基金项目
福建省自然科学基金项目(No.2011J01077). （No.2011J01077）
