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Effects of sulfate on cadmium uptake in wheat grown in paddy soil - pot experiment

Author

Listed:
  • Lijuan Huang

    (College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, P.R. China
    Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
    Sino-Danish Centre for Education and Research, University of Chinese Academy of Sciences, Beijing, P.R. China)

  • Hans Chr. Bruun Hansen

    (Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
    Sino-Danish Centre for Education and Research, University of Chinese Academy of Sciences, Beijing, P.R. China)

  • Huihui Wang

    (Institute of Energy and Environmental Protection, Chinese Academy of Agricultural Engineering Planning and Design, Beijing, P.R. China)

  • Jing Mu

    (College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, P.R. China
    Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
    Sino-Danish Centre for Education and Research, University of Chinese Academy of Sciences, Beijing, P.R. China)

  • Zijian Xie

    (College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, P.R. China)

  • Lifang Zheng

    (Institute of Soil and Water Conservation, Chinese Academy of Sciences, Shanxi, P.R. China)

  • Zhengyi Hu

    (College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, P.R. China
    Sino-Danish Centre for Education and Research, University of Chinese Academy of Sciences, Beijing, P.R. China)

Abstract

Rice-wheat rotation is common in China. Cadmium (Cd) and sulfur (S) are added to rice fields through various activities. The sulfur amendment has been recommended to control the uptake of Cd in rice. However, the effect of S on Cd uptake in winter wheat cultivated in paddy soil is rarely reported. A greenhouse pot experiment including two Cd levels (0, 10 mg Cd/kg, as CdCl2) combined with three S rates (0, 30, 60 mg S/kg, as Na2SO4) was performed to investigate the effect of S application on uptake and allocation of Cd in wheat cultivated in paddy soil. Cadmium concentrations in wheat grain significantly (P < 0.05) increased by 37% at 30 mg S/kg, and the percentage of Cd allocation to grain significantly (P < 0.05) increased by 7% at 60 mg S/kg compared with non-S addition treatment when wheat was grown in Cd-added soil. For the low Cd soil, a similar trend was seen, but Cd increases were insignificant for grain while significant (P < 0.05) for root at 60 mg S/kg. In conclusion, S fertiliser may promote Cd accumulation in wheat grain and should be considered when it is used for wheat in paddy soils.

Suggested Citation

  • Lijuan Huang & Hans Chr. Bruun Hansen & Huihui Wang & Jing Mu & Zijian Xie & Lifang Zheng & Zhengyi Hu, 2019. "Effects of sulfate on cadmium uptake in wheat grown in paddy soil - pot experiment," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 65(12), pages 602-608.
    • Handle: RePEc:caa:jnlpse:v:65:y:2019:i:12:id:558-2019-pse
    DOI: 10.17221/558/2019-PSE
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