ABSTRACT
Allelopathic autotoxicity is one of the important factors for the continuous cropping obstacle of medicinal plants, which will reduce the yield and quality. With the development of medicinal plants industry, the problem of continuous cropping obstacle is becoming more and more serious. How to alleviate the continuous cropping obstacle of medicinal plants needs to be solved urgently. This paper combines the research status of allelopathic autotoxicity in medicinal plants. On the one hand, expounds the mechanism that the allelochemicals of medicinal plants inhibit the growth and development of medicinal plants by damaging the cell structures, interfering with the metabolism of reactive oxygen species and phytohormones, affecting photosynthesis and so on. On the other hand, based on the analysis of the relationship between allelochemicals and continuous cropping obstacle of medicinal plants, this paper elucidated some methods to alleviate the continuous cropping obstacle of medicinal plants, such as breeding antiallelopathic autotoxicity medicinal plants varieties, rational fertilizing, selecting proper cropping system and using microbial agents, in order to provide reference for the production of medicinal plants.