中国稻米 ›› 2023, Vol. 29 ›› Issue (3): 88-92.DOI: 10.3969/j.issn.1006-8082.2023.03.017

• 品种与技术 • 上一篇    下一篇

豆饼联合海泡石对水稻镉积累的影响

丁付革1(), 袁大英1, 张红军1, 潘绪华1, 朱靖2, 徐轶群2,*()   

  1. 1中交上海航道局有限公司 江苏交通建设工程分公司,南京 210019
    2扬州大学 环境科学与工程学院,江苏 扬州 225009
  • 收稿日期:2022-10-11 出版日期:2023-05-20 发布日期:2023-05-23
  • 通讯作者: 徐轶群
  • 作者简介:第一联系人:

    第一作者:286083327@qq.com

  • 基金资助:
    国家自然科学基金(41472034);江苏省自然科学基金面上项目(SBK20191444)

Effect of Soybean Cake Combined with Sepiolite on Cadmium Accumulation in Rice

DING Fuge1(), YUAN Daying1, ZHANG Hongjun1, PAN Xuhua1, ZHU Jing2, XU Yiqun2,*()   

  1. 1Jiangsu Traffic Construction Engineering Branch, CCCC Shanghai Dredging Co., Ltd., Nanjing 210000, China
    2College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225000, China
  • Received:2022-10-11 Online:2023-05-20 Published:2023-05-23
  • Contact: XU Yiqun
  • About author:First author contact:

    1st author: 286083327@qq.com

摘要:

采用盆栽试验,研究了海泡石、豆饼及二者配施对稻田土壤理化性质、土壤中镉(Cd)的存在形式以及水稻各部位Cd积累的影响。结果表明,海泡石、豆饼及其配施处理均提高了稻田土壤pH值、可溶性盐含量(EC值)和阳离子交换量(CEC值),豆饼与海泡石配施处理组的土壤pH小于单施海泡石处理组;与对照相比,添加豆饼处理土壤有机质含量(SOM)显著提高;与对照相比,各处理组均降低了土壤中DTPA-Cd含量,均使土壤中可交换态Cd向可还原态Cd、可氧化态Cd以及残渣态Cd转化,均不同程度降低了水稻根、茎叶、籽粒中Cd含量。

关键词: 水稻, 豆饼, 海泡石, 土壤, 镉形态, 镉积累

Abstract:

A pot experiment was conducted to study the effects of sepiolite, soybean cake and their combined application on the physical and chemical properties of rice soil, the existing forms of cadmium in soil and the accumulation uptake of Cd in various parts of rice. The results showed that sepiolite, soybean cake and the combined application all increased soil pH, EC value and CEC value, the soil pH of the soybean cake treatment and its combined with sepiolite treatment was smaller than that of the sepiolite treatment. Compared with the control, the soil organic matter content of soybean cake treatment was significantly increased. Compared with the control, all treatment reduced the content of DTPA-Cd in soil, all caused soil exchangeable Cd to reducible Cd, oxidizable Cd and residual Cd conversion, and all reduced Cd content in rice roots, stems, leaves and unpolished grain.

Key words: rice, soybean cake, sepiolite, soil, cadmium morphology, cadmium accumulation

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