摘要
六盘水市耕地土壤存在重金属Cd污染问题。为了保障农产品质量安全和安全利用受污染耕地,本研究选取典型Cd污染耕地,采用品种调整、原位钝化、叶面调控与微生物修复4项农艺调控措施开展试验,对治理后土壤中Cd含量和玉米籽实中Cd含量进行测定并综合评价治理效果,筛选适宜六盘水市Cd污染耕地的治理技术模式。结果表明,各项措施实施后,耕地安全利用率均达标,其中原位钝化措施降低土壤中Cd含量效果最好,最大降幅约23.99%;叶面调控措施降低玉米籽实中Cd含量显著,最大降幅约40%。
There is a problem of heavy metal Cd pollution in the soil of cultivated land in Liupanshui City. In order to ensure the quality and safety of agricultural products and the safe use of contaminated cultivated land, this study selected typical Cd-contaminated farmland to conduct test by four agronomic control measures, including variety adjustment, in-situ passivation, foliar control and microbial restoration. The Cd content in soil and the Cd content in corn grains after treatment were determined and the treatment effects were comprehensively evaluated to screen out the treatment technology model suitable for Cd-contaminated cultivated land in Liupanshui City. The results showed that after the implementation of the measures, the safe use rate of cultivated land all reached the standard. Among them, the in-situ passivation measures had the best effect on reducing the cadmium content in soil, and the maximum decrease was about 23.99%;the foliar control measures could significantly reduce the cadmium content in corn grains, and the maximum decrease was about 40%.
作者
瞿翔
曾国龙
骆振华
黄燕
陈昌阔
徐瑞
罗维
吴玉梅
QU Xiang;ZENG Guolong;LUO Zhenhua;HUANG Yan;CHEN Changkuo;XU Rui;LUO Wei;WU Yumei(Panzhou Agricultural and Rural Bureau,Panzhou Guizhou 553500;No.113 Geological Brigade,Bureau of Geology and Mineral Exploration and Development Guizhou Province,Liupanshui Guizhou 553000)
出处
《现代农业科技》
2023年第1期123-127,共5页
Modern Agricultural Science and Technology
基金
贵州省耕地保护与质量提升技术集成与转化(No.20192851)。
关键词
Cd污染耕地
品种调整
原位钝化
叶面调控
微生物修复
耕地安全利用
贵州六盘水
Cd-contaminated cultivated land
variety adjustment
in-situ passivation
foliar control
microbial restoration
safe use of cultivated land
Liupanshui Guizhou
