American Ginseng is one of the famous and presious medicinal plant, with extremely high medicinal and economic value, but the continuous cropping obstacles of panax quinquefolium is urgently to be solved by the bottleneck problems. This paper maily studies the ecology mechanism of the continuous cropping obstacles on Panax quinquefoium in Liuba county of shaanxi and the resistance function by bio-control actinomycetes. The results are as follows.
1. The research on the soil microbial ecology between the...