Positive effects of applying endophytic bacteria in eggplant-Sedum intercropping system on Cd phytoremediation and vegetable production in cadmium polluted greenhouse

作     者：Luyao Ma Lukuan Huang Qizhen Liu Shunan Xu Zheyu Wen Shuai Qin Tingqiang Li Ying Feng Luyao Ma;Lukuan Huang;Qizhen Liu;Shunan Xu;Zheyu Wen;Shuai Qin;Tingqiang Li;Ying Feng

作者机构：MOE Key Laboratory of Environment Remediation and Ecological HealthCollege of Environmental and Resource SciencesZhejiang UniversityHangzhou 310058China Agriculture and Rural Bureau of Jinchengjiang DistrictHechiGuangxi 547000China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2022年第34卷第5期

页      面：383-391页

核心收录：

学科分类：12[管理学] 1204[管理学-公共管理] 082803[工学-农业生物环境与能源工程] 07[理学] 08[工学] 0828[工学-农业工程] 09[农学] 0903[农学-农业资源与环境] 120405[管理学-土地资源管理] 0713[理学-生态学] 

基　　金：This work was supported by the National Key Research and Development Project of China(No.2017YFD0801104) the Key R&D projects in Zhejiang Province(No.2021C04020) 

主　　题：Endophytic bacteria Solanum melongena L. Cd pollution Phytoremediation Soil fertility 

摘      要：The combination of intercropping and phytoremediation in the remediation of cadmium contaminated soil is an emerging model in recent years,but the results of previous studies are *** the field experiment,eggplant was intercropped with hyperaccumula-tor Sedum alfredii Hance(inoculated or not inoculated with endophytic bacteria)to study the effects of intercropping on vegetable safety production,phytoremediation efficiency of hyperaccumulator and variation of soil available *** results showed that the in-tercropping treatment had a negative effect on the growth of eggplant and Sedum,but en-dophyte SaMR12 alleviated the inhibition of intercropping on plant *** treatment increases the Cd concentration in edible part of eggplant to 1.34 mg/kg compared with eggplant monoculture(1.19 mg/kg).While the application of SaMR12 reduces the Cd concentration of eggplant fruit to 0.95 mg/kg and significantly promotes the Cd uptake by *** s more surprising is that compared with eggplant monocropping,the con-tent of soil available nitrogen,phosphorus and potassium in the treatment of intercropping with inoculated Sedum increased *** according to the correlation analysis of various indexes of plants and soil,the Cd content of eggplant is negatively correlated with the available phosphorus and potassium in the soil,while the Cd content of Sedum is positively correlated with it,which suggested that the application of phosphorus and potas-sium fertilizers in this experimental site was beneficial to reduce Cd content in eggplant and improve Cd phytoextraction of ***,in the daily production of moderately Cd-contaminated soil,intercropping eggplant with Sedum inoculated with endophytic bacteria is an excellent Phytoextraction Coupled with Agro-safe-production(PCA)pattern.