Continuous cropping obstacle is an archaic problem discovered and known by Chinese forefathers thousand years ago. However, its mechanism was poorly understood, and subsequently no effective measures could overcome it. In this paper we analyzed the kinds and synthesizing mechanism of secondary metabolite, secondary metabolite autotoxic, the mechanisms of resistance to self-produced toxic secondary metabolites and the formation time in plants. We propose that secondary metabolite autotoxic to renascent plant is the mechanism of continuous cropping obstacles primarily, and based on the hypothesis we suggest several approaches to overcome continuous cropping obstacles.
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邱立友,戚元成,王明道,贾新成.植物次生代谢物的自毒作用及其与连作障碍的关系[J].土壤,2010,42(1):1-7. QIU Li-you, QI Yuan-cheng, WANG Ming-dao, JIA Xin-cheng. Relationship between secondary metabolite autotoxic to plant and continuous cropping obstacles[J]. Soils,2010,42(1):1-7