设施辣椒连作障碍成因与生态调控研究进展OA

Pepper(Capsicum annuum L.)is one of the most important vegetable crops in protected cultivation systems in China.Under intensive protected production,the increasing planting frequency and long-term monoculture in the same field have led to increasingly serious continuous cropping obstacles,which have become a major constraint on the sustainable development of the pepper industry.This review systematically summarizes the major causes of continuous cropping obstacles in protected pepper,including deterioration of soil physicochemical properties,imbalance of soil microbial communities,and accumulation of autotoxins derived from root exudates and plant residues.Recent advances in ecological regulation strategies are also reviewed,with emphasis on soil improvement,biological regulation,and optimization of cultivation management,such as application of organic amendments and biochar,lime and gypsum conditioning,use of microbial inoculants and antagonistic microbes,crop rotation and intercropping,soil disinfestation,grafting,and precise water-fertilizer management.Finally,key research priorities and technical integration strategies are proposed for typical production regions such as Liaocheng,Shandong,and the Huang-Huai-Hai area,aiming to provide references for establishing green,efficient,and sustainable protected pepper production systems.