[Effect of organic amendments on soil fungi community and continuous cropping Panax quinquefolium].
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.


CONCLUSIONS
Adding suitable organic amendments in soil can change the soil fungi community and be beneficial to solving the replant problem of Panax quinquefolium.
Bi
Wu
W
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094, China. biwu0736@163.com
Yang
Jia-Xue
JX
Gao
Wei-Wei
WW
D005308:Fertilizers; D005658:Fungi / Q000254:growth & development*; D005670:Fusarium / Q000254:growth & development; D009930:Organic Chemicals / Q000737:chemistry / Q000378:metabolism*; D005894:Panax / Q000254:growth & development* / Q000382:microbiology; D031344:Perilla frutescens / Q000378:metabolism; D010838:Phytophthora / Q000254:growth & development; D010935:Plant Diseases; D018517:Plant Roots / Q000254:growth & development / Q000382:microbiology; D011208:Powders; D012621:Seasons; D012987:Soil; D012988:Soil Microbiology
D005308:Fertilizers; D009930:Organic Chemicals; D011208:Powders; D012987:Soil