不同植物与芥菜间作对芥菜土壤镉含量的影响  

Effects of Brassica juncea Intercropped with Different Plants on the Content of Cadmium in Brassica juncea and Soil

作　　者：邱孝煊[1] 方守玲 陈孔长 林金美 黄东风[1] 李昱[1] 王利民[1] QIU Xiao-xuan;FANG Shou-ling;CHEN Kong-chang;LIN Jin-mei;HUANG Dong-feng;LI Yu;WANG Li-min(Soil and Fertilizer Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, China;Baizhang Town Center of Comprehensive Technology Support in Minqing County of Fujian, Fuzhou,Fujian 350804, China;Minqing County Bureau of Agriculture and Rural Affairs, Fuzhou, Fujian 350800, China)

机构地区：[1]福建省农业科学院土壤肥料研究所,福建福州350013 [2]福建省闽清县白樟镇综合技术保障中心,福建福州350804 [3]福建省闽清县农业农村局,福建福州350800

出　　处：《福建农业科技》2022年第3期63-69,共7页Fujian Agricultural Science and Technology

基　　金：福建省科技计划项目——省属公益类科研院所基本科研专项(2019R1025-5)。

摘　　要：为探讨Cd富集植物与蔬菜间作对蔬菜土壤Cd含量效应,筛选能降低蔬菜土壤镉污染的间作组合。选择Cd高富集印度芥菜及同属的油菜(6个品种)、在Cd中度污染的土壤进行与芥菜间作田间试验,通过间作对植株生物量以及植株土壤Cd含量和根系土壤微环境影响评价。结果表明:印度芥菜、荚荚多腊菜生物量比较小,姜山金黄等5种油菜生物量比较大;间作不同植物对芥菜产量没有显著影响。参试植物Cd含量以及对土壤Cd提取量、富集系数的影响表现为印度芥菜>芥菜型油菜>甘蓝型油菜>白菜型油菜>单种芥菜。对土壤Cd提取率影响大小表现为间作印度芥菜>间作芥菜型油菜>间作甘蓝型油菜>间作白菜型油菜>单种芥菜。不同处理之间土壤pH值、氧离子交换量差别不大。印度芥菜与芥菜间作,当季土壤镉含量下降;其他组合之间当季土壤Cd含量差别不大。芥菜间作不同植物后其Cd含量有升有降。总之,芥菜与印度芥菜间作降低当季土壤Cd含量,与姜山金黄油菜、三月黄油菜、中油828油菜间作降低其地上部Cd含量。In order to investigate the accumulative effect of the plants enriched Cd and the intercropping of vegetables on the content of Cd in the vegetables and soil,and select the intercropping combinations that could reduce the Cd pollution in the vegetables and soil,the six cultivars of Indian Brassica juncea with highly enriched Cd and Brassica napus which belonged to the same genus were selected and the field experiment was carried out by intercropping Brassica juncea in the moderately Cd-contaminated soils.Then,the effects of the intercropping on the plant biomass,the content of Cd in the plants and soil,and the microenvironment of root soil were evaluated.The results showed that the biomass of Indian Brassica juncea and Jiajiaduolacai was relatively small,while the biomass of five species of Brassica napus,such as Jiangshan Jinhuang,was relatively large.The intercropping with different plants had no significant effect on the yield of Brassica juncea.By comparing the contents of Cd,the extraction of Cd from soil and the enrichment coefficient in the tested plants,the order was Indian Brassica juncea>Brassica juncea>Brassica napus>Brassica rapa>Brassica juncea,while for the comparison of the extraction rate of Cd from soil,the order was as follows:intercropping with Indian Brassica juncea>intercropping with Brassica juncea>intercropping with Brassica napus>intercropping with Brassica rapa>intercropping with Brassica juncea.There was little difference in the soil pH and redox ion exchange capacity among different treatments.When the Indian Brassica juncea was intercropped with Brassica juncea,the content of cadmium in the soil in season decreased.And there was little difference in the content of Cd in soil in season among other combinations.The Cd content of Brassica juncea intercropped with different plants would be increased or decreased.In conclusion,the intercropping of Brassica juncea with Indian Brassica juncea would reduce the content of Cd in the soil in season,while the intercropping of Brassica juncea with

关 键 词：油菜 印度芥菜 芥菜 间作 土壤 镉 

分 类 号：X322[环境科学与工程—环境工程]