摘要
目的:研究不同有机添加物处理老参地土壤对重茬西洋参生长及病害发生的影响,及其与土壤真菌区系的关系。方法:土壤施用动植物有机添加物,播种后调查出苗、存苗、根病及根的生长情况;采用稀释平板法及选择性培养基测定土壤总真菌及病原真菌数量在西洋参生长季节的动态变化。结果:有机添加物处理土壤对提高连作西洋参保苗率及减轻病害有一定效果,以紫苏根粉处理效果较为明显。结论:适宜的有机添加物可改变土壤真菌数量,促进连作西洋参生长和降低病害发生程度。
Objective：To study the effect of different organic amendments treated replant soil and to find the relations between the soil fungi community and the growth of Panax quinquefolium L.seedling.Methods：The soil was treated with bone meal and Perilla frutescens root meal,the rate of seedling emergence,incidence of rot root and root weight were investigated.The fungi community and the pathogen,Fusarium solani and Phytophthora cactorum population were counted by soil dilution plating technique.Results：The organic amendments especially Perilla frutescens root meal treated soil could reduce the population of Fusarium solani and Phytophthora cactorum in soil,thus lessen the root disease of continuous cropping Panax quinquefolium and increase survival of weedling.Conclusion：Adding suitable organic amendments in soil can change the soil fungi community and be beneficial to solving the replant problem of Panax quinquefolium.
出处
《中药材》
CAS
CSCD
北大核心
2008年第7期951-954,共4页
Journal of Chinese Medicinal Materials
基金
国家科技部"十一五"科技支撑计划项目(2006BAI09B3)
北京市科技计划课题(D0206001040591)
关键词
西洋参
连作
有机添加物
土壤真菌
Panax quinquefolium L.
Continuous cropping
Organic soil amendments
Soil fungi
作者简介
毕武（1981-），男，硕士研究生，研究方向：药用植物土壤生态学；E-mail：biwu0736@163．com。
通讯作者：高微微，E-mail：wwgao@implad．ac．cn。
