关键词: 药用植物;连作障碍;形成机理;防治途径

Abstract:

In view of the common and serious situation of continuous cropping obstacles in medicine production, this paper expounded the specific expression of continuous cropping obstacles in medicinal plants; overviewed the recent progress on formation mechanism of continuous cropping obstacles in medicinal plants from three aspects, i.e.  change of soil physical and chemical properties, deterioration of soil biological environment and plant self-allelopathy; and summarized ways to prevent the continuous cropping obstacles in medicinal plants, including rational rotation, soil sterilization, supplementation of nutrient elements or beneficial microorganism and application of comprehensive measures, etc. The paper also discussed hot issues related with continuous cropping obstacles, so as to provide references for further studies.

Key words: medicinal plant, continuous cropping obstacles, formation mechanism, control measure