Current status of soil sickness research on Panax notoginseng in Yunnan, China

摘要

Panax notoginseng is very important medicinal perennial herb. Its continuous cropping is restricted by the soil sickness. In past decades in Yunnan province, many studies have been made to solve this problem by elimination of pathogens and autotoxins, through balanced application of fertilizers and introduction of probiotics. This problem had been partially overcome by greenhouses cultivation and ecological approaches (Growth environment modification, soil improvement, balanced nutrition, integrated pests management, soil remediation). However, application of these approaches is limited under field conditions, due to very high cost. Hence, recently, an innovative approach (cultivation of P. notoginseng under forest conditions), has been developed and widely tested. The successful cultivation of P. notoginseng in forests is due to the effective use of native environment and allelopathic interactions.