浙江农业学报 ›› 2023, Vol. 35 ›› Issue (11): 2655-2663.DOI: 10.3969/j.issn.1004-1524.20221854

• 环境科学 • 上一篇    下一篇

叶面阻控剂在轻度镉污染石灰性麦田上的降镉效果

宋盼盼(), 常会庆*(), 李岚坤, 王启震   

  1. 河南科技大学 农学院,河南 洛阳 471023
  • 收稿日期:2022-12-30 出版日期:2023-11-25 发布日期:2023-12-04
  • 作者简介:宋盼盼(1998—),女,河南洛阳人,硕士研究生,主要从事环境污染修复研究。E-mail: 1362444583@qq.com
  • 通讯作者: * 常会庆,E-mail: hqchang@126.com
  • 基金资助:
    国家重点研发计划(2017YFD0801300);国家自然科学基金(41571319)

Effects of foliar spraying inhibitor on reducing cadmium content of wheat under calcareous soil with slight cadmium pollution

SONG Panpan(), CHANG Huiqing*(), LI Lankun, WANG Qizhen   

  1. College of Agriculture, Henan University of Science and Technology, Luoyang 471023, Henan, China
  • Received:2022-12-30 Online:2023-11-25 Published:2023-12-04

摘要:

在轻度镉污染的石灰性潮土麦田上开展试验,以叶面喷施(分别在小麦拔节期、抽穗期和灌浆期各进行一次)3种自配阻控剂(ZP1、ZP2、ZP3)作为处理,以叶面喷施蒸馏水作为对照(CK),明确其对小麦镉转运和富集的影响,以便筛选出具有良好降镉效果的阻控剂,为轻度镉污染石灰性麦田的安全生产提供参考。结果表明:与CK相比,叶面喷施3种阻控剂对小麦的产量和品质指标无显著影响,显著(P<0.05)降低了小麦从茎到叶的镉转运系数和小麦叶片的镉富集系数,显著提高了小麦叶的铜、锌含量。此外,叶面喷施ZP3阻控剂还显著降低了小麦籽粒的镉含量,降幅为43.3%。综合对比,在轻度镉污染石灰性麦田上,可优选ZP3型叶面阻控剂进行喷施。

关键词: 小麦, 阻控剂, 叶面喷施, 籽粒,

Abstract:

In this study, a field experiment was conducted in the calcareous soil with slight cadmium (Cd) pollution to screen out the suitable foliar inhibitor with good Cd reduction effect and provide references for the safe production of wheat in Cd slightly polluted soils. Three self-made foliar inhibitors (ZP1, ZP2, ZP3) were spayed at jointing stage, heading stage and filling stage as treatments, foliar spraying of dilluted water was used as the control (CK), and the effect of these treatments on Cd translocation and bioconcentration of wheat was examined. The results showed that compared with CK, spraying ZP1, ZP2 and ZP3 had no significant effect on wheat yield and quality, yet significantly reduced Cd translocation factor from stem to leaves and Cd bioconcentration factor in leaves, and significantly increased the contents of Cu and Zn in wheat leaves. Besides, foliar spraying of ZP3 significantly reduced Cd content in wheat grains by 43.3%. Therefore, for calcareous wheat fields with slight cadmium pollution, ZP3 was recommended to safeguard the production of wheat.

Key words: wheat, inhibitor, foliar spraying, grain, cadmium

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