摘要
连作障碍在粮食作物、果树、蔬菜、中草药等植物上普遍发生,制约着产业健康可持续发展。间作、轮作及套种等种植制度作为一项重要的农业生产措施,可以调控连作作物根际土壤的微生态环境,减轻连作的危害。葱属植物含有多种生物成分,包括有机硫化合物、皂苷、类黄酮等,常作为间作、轮作或套种作物以缓解连作障碍。阐述了葱属植物对连作障碍的缓解作用,并从植株光合特性、抗氧化酶活性、根系分泌物特性和土壤养分、酶活性、微生物数量及群落结构方面探讨了葱属植物对连作障碍的缓解机制,分析了葱属植物根系分泌物及植株挥发物中含有的生物成分,最后针对葱属植物缓解连作障碍机制的研究方向及有效物质开发提出了展望,为进一步发挥葱属植物在缓解连作障碍中的作用奠定理论基础。
Soil continuous cropping obstacles commonly occur in many plants,such as grain crops,fruit trees,vegetables,Chinese herbal medicines and others,restricting the healthy and sustainable development of the industry.Intercropping,rotation and relay intercropping are important agricultural management measures,and they can regulate the microecological environment of rhizosphere soil of continuous cropping,reducing the harm of continuous cropping.Allium L.plants contain various biologically active components such as organic sulfur compounds,saponins,flavonoids,and other compounds.They are often used as an intercropping,rotation or relay intercropping crop to alleviate continuous cropping obstacles.This paper expounded the alleviative effects of Allium L.plants on continuous cropping obstaces,and the alleviating mechanism of Allium L.plants on continuous cropping obstacles was discussed from photosynthetic characteristics,antioxidant enzyme activity,root exudate characteristics and soil nutrients,enzyme activity and microorganisms quantity and community structure.The components contained in root exudates and plant volatiles of Allium L.plants were analyzed.Finally,the research direction of mechanisms of Allium L.plants alleviating continuous cropping obstacles and the development of active substances were proposed,which laid a theoretical foundation for further application of Allium L.plants in alleviating continuous cropping obstacles.
作者
郭嘉宁
李楠楠
李坤
GUO Jianing;LI Nannan;LI Kun(College of Horticulture,Shenyang Agricultural University,Shenyang 110866,China)
出处
《河南农业科学》
北大核心
2024年第8期11-20,共10页
Journal of Henan Agricultural Sciences
基金
辽宁省教育厅项目(LJKZ0636)。
关键词
葱属
连作障碍
生理指标
土壤微生态环境
Allium L.
Continuous cropping obstacles
Physiological characteristics
Soil microenvironment
