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中国农学通报

中国农学通报 ›› 2026, Vol. 42 ›› Issue (2): 113-119.doi: 10.11924/j.issn.1000-6850.casb2025-0160

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

两种叶面阻控剂对稻米镉吸收累积的影响及健康风险评价

徐军辉1(), 陈丽妮1, 黄芳2, 连聪2, 莫博程3()   

  1. 1 益阳市赫山区农业技术推广中心， 湖南益阳 413000
    2 湖南橘友生物科技有限公司， 长沙 410100
    3 湖南大学生物学院， 长沙 410082
  • 收稿日期:2025-03-05 修回日期:2025-06-15 出版日期:2026-01-25 发布日期:2026-01-22
  • 通讯作者:
    莫博程，男，1992年出生，湖南常德人，农艺师，博士，主要从事农业环境保护工作。通信地址：410082 湖南省岳麓区湖南大学生物学院， E-mail：。
  • 基金资助:
    “芙蓉计划”湖湘青年英才项目; 湖南省科技人才托举工程“小荷人才专项支持计划”(2022TJ-XH-034)

Effects of Two Foliar Inhibitors on Absorption and Accumulation of Cd in Rice and Related Health Risk Assessment

XU Junhui1(), CHEN Lini1, HUANG Fang2, LIAN Cong2, MO Bocheng3()   

  1. 1 Agricultural Technology Extension Center of Heshan District, Yiyang City, Yiyang, Hunan 413000
    2 Hunan Juyou Biotech Co., Ltd, Changsha 410100
    3 College of Biology, Hunan University, Changsha 410082
  • Received:2025-03-05 Revised:2025-06-15 Published:2026-01-25 Online:2026-01-22

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摘要：

针对镉(Cd)污染农田稻米安全生产难题，为筛选高效市售叶面阻控剂并明确其应用效果，以2种市售含硅(Si)叶面阻控剂（贝尔壳、硅利丰）为材料，在益阳市典型Cd污染农田设置3 L/hm2、6 L/hm2 2种不同施用量处理，以不施用叶面阻控剂处理作为空白对照(CK)，共5个处理小组，于水稻破口期和齐穗期喷施，研究其对水稻产量、稻米Cd含量及Cd富集系数的影响，并进行了健康风险评价。结果表明，在水稻破口期和齐穗期喷施两种含Si叶面阻控剂(3、6 L/hm2)使水稻产量提高了4.6%~7.7%，稻米中Cd含量降低了24.5%~42.5%，稻米Cd富集系数降低了24.1%~42.3%。两种叶面阻控剂均在施用量为6 L/hm2时效果更佳，且相同施用量下贝尔壳叶面阻控剂的降Cd效果优于硅利丰。两种叶面阻控剂的施用分别使成人和儿童的THQ值降低了24.2%~42.1%和24.3%~42.4%，减轻了当地人群稻米食用健康风险。综上所述，通过在水稻破口期和齐穗期施用市售含Si叶面阻控剂能提高Cd污染农田水稻产量、降低稻米Cd的吸收与富集，减轻人体健康风险，其中使用贝尔壳叶面阻控剂且施用量为6 L/hm2时效果更佳。未来需结合土壤调理剂（如石灰）改良土壤pH，进一步降低稻米Cd含量至国标水平，为Cd污染农田安全利用提供更完善的技术方案。

关键词: 叶面阻控剂, Cd污染农田, 水稻, 富集系数, 健康风险

Abstract:

Addressing the challenge of safe rice production in cadmium (Cd)-contaminated farmland, this study aimed to screen commercially available high-efficiency foliar inhibitors and evaluate their application effects. Two commercially available silicon (Si)-containing foliar inhibitors (Beierke and Guilifeng) were applied at two rates (3 and 6 L/hm2) in typical Cd-contaminated farmland in Yiyang City. A treatment without foliar inhibitor application served as the control group (CK). A total of five treatment groups were sprayed at the rice booting and heading stages. The study examined their effects on rice yield, Cd content in rice grains, and the Cd bioaccumulation factor, along with a health risk assessment. The results indicated that spraying the two Si-containing foliar inhibitors (3 and 6 L/hm2) during the rice booting and heading stages increased rice yield by 4.6% to 7.7%, reduced Cd content in rice grains by 24.5% to 42.5%, and decreased the Cd bioaccumulation factor in rice grains by 24.1% to 42.3%. Both inhibitors showed optimal performance at the application rate of 6 L/hm2, and under the same application rate, Beierke demonstrated superior Cd reduction compared to Guilifeng. The application of two foliar inhibitors reduced the target hazard quotient (THQ) for adults and children by 24.2% to 42.1% and 24.3% to 42.4%, respectively, mitigating the health risks associated with rice consumption for the local population. In conclusion, the application of commercially available Si-containing foliar inhibitors during the rice booting and heading stages can increase rice yield in Cd-contaminated farmland, reduce Cd absorption and accumulation in rice grains, and mitigate health risks to human health. Among then, the use of Beierke foliar inhibitor at a dosage of 6 L/hm2 yielded the best result. Future efforts should combine soil amendments (such as lime) to adjust soil pH and further reduce Cd content in rice to meet national standards, thereby providing a more comprehensive technical solution for the safe utilization of Cd-contaminated farmland.

Key words: foliar inhibitor, Cd contaminated farmland, rice, bioaccumulation factor, health risk