我国甘薯连作障碍研究现状及展望OA

Sweet potato is a globally important food crop.However,with the continuous increase in the multi-cropping index of land,the re-planting problem of sweet potato has become increasingly prominent,becoming a key factor restricting the development of the industry.Relevant research also faces many challenges.Currently,domestic research on the re-planting problem of sweet potato mainly focuses on three aspects:soil physical and chemical property deterioration,microbial ecological imbalance,and self-toxic accumulation.No method has been found to completely eliminate the re-planting problem,but some techniques can effectively alleviate their negative impacts.This article systematically re-views the research progress on the re-planting problem of sweet potato,and the main contents include the following three aspects:first,analyze the causes and specific hazards of the re-planting problem of sweet potato;second,explore its the internal mechanism at multiple levels;third,evaluate various control strategies.By reviewing the research achievements and shortcomings,this article aims to provide a reference for overco-ming the re-planting problem of sweet potato.