期刊论文、会议论文

Effect of Conditioning Agent Combined with Flooding Measures on Absorption and Accumulation of Cadmium in Rice

Tie, Bai-Qing(tiebq@qq.com)

中文

环境科学

0250-3301

2019

40

9

4287-4294

第八届重金属污染防治技术及风险评价研讨会

第八届重金属污染防治技术及风险评价研讨会论文集

2018-11-16

云南腾冲

中国环境科学学会

10.13227/j.hjkx.201902086

国家重点研发计划项目（2017YFD0801505）； 湖南省科技计划项目重点研发计划项目（2016NK2017）； 长沙市科技计划项目（kq1801025）；

本校为第一且通讯机构

为探明淹水措施、基施湘润邦土壤调理剂、矿物硅肥+喷施叶面肥、石膏粉以及综合处理对不同污染土壤修复效果和作用机制,通过在3个不同类型Cd污染耕地布置小区试验,研究了单一处理及综合措施对阻控污染耕地稻米吸收累积Cd的影响.结果表明,淹水措施、单一施用调理剂、综合施用结合淹水处理能降低土壤有效态Cd和水稻各器官Cd含量,土壤有效态Cd降低6.58% ~ 30.01%,糙米Cd含量降低12.65% ~ 68.68%,降低效果为综合处理(T6) >基施石膏粉(T5) >基施湘润邦土壤调理剂(T3) >矿物硅肥+喷施叶面肥(T4) >淹水处理(T2) (以两季水稻糙米Cd含量降低效果平均值计算).试验中5个处理使水稻各部位富集系下降,是引起糙...

In order to evaluate the effects and mechanisms of flooding measures, soil conditioner, silicon mineral fertilizer and sprayed foliar fertilizer, gypsum powder, and their multiple treatments for reducing Cd accumulation in rice grown in Cd-contaminated soil. A plot experiment was conducted in three different Cd-contaminated soils. The results showed that flooding measures, a single application of conditioning agents, and combined application and flooding treatment can reduce soil-available Cd and the Cd content in various organs of rice with 6....