上海农业学报2023，Vol.39Issue(6)：76-81,6.DOI:10.15955/j.issn1000-3924.2023.06.14
农田土壤和作物籽粒常见重金属含量影响因素分析
Analysis of factors influencing the content of common heavy metals in farmland soil and crop grains
摘要
Abstract
In order to study the changes and influencing factors of heavy metal content in farmland,the content of common heavy metals Cd,Pb,and Hg in farmland irrigation water,soil,pesticides,fertilizers,and crop grains under 3 common crop rotation modes in Henan Province was monitored,and the enrichment coefficient of heavy metals in crop grains was calculated.The results showed that the order of Cd content in irrigation water from high to low in different months was January,July,April,and October;The order of Pb content from high to low was July,October,April,and January;The order of Hg content from high to low was October,January,July,and April.Chicken manure,pesticides,and fertilizers had higher levels of Cd and Pb,while pesticides and chicken manure had higher levels of Hg.The content of soil Cd,Pb,and Hg in the wheat+peanut rotation system was the highest,and the heavy metal enrichment coefficient in crop grains in the wheat+millet rotation system was the highest.It was recommended to apply refined organic fertilizers without heavy metal pollution in farmland,replace chemical pesticides with efficient and low toxicity biopesticides,and gradually reduce the heavy metal content in soil and crop grains.关键词
主要农作物/轮作模式/重金属含量/影响因素Key words
Major crops/Rotation mode/Heavy metal content/Influencing factors分类
农业科技引用本文复制引用
白保勋,徐婷婷,陈东海,杨海龙..农田土壤和作物籽粒常见重金属含量影响因素分析[J].上海农业学报,2023,39(6):76-81,6.基金项目
国家农业环境数据中心观测监测项目(ZX03S1707) （ZX03S1707）
