中国稻米 ›› 2024, Vol. 30 ›› Issue (2): 18-25.DOI: 10.3969/j.issn.1006-8082.2024.02.004

• 专论与研究 • 上一篇    下一篇

施用硒内源调控剂对水稻吸收硒、镉和砷的影响

李媛媛1(), 焦洪鹏1, 冯先翠1, 曹鹏1, 江海燕1, 雷满奇2   

  1. 1广东省地质实验测试中心,广州 510080
    2广西壮族自治区地质矿产测试研究中心,南宁 530023
  • 收稿日期:2023-09-26 出版日期:2024-03-20 发布日期:2024-03-18
  • 作者简介:第一作者: liyy84@163.com
  • 基金资助:
    广西重点研发计划生态环保项目(912260075018);广西重点研发计划生态环保项目(桂科AB19245050)

Effects of Applying Selenium Endogenous Regulators on the Absorption of Selenium, Cadmium, and Arsenic by Rice

LI Yuanyuan1(), JIAO Hongpeng1, FENG Xiancui1, CAO Peng1, JIANG Haiyan1, LEI Manqi2   

  1. 1Guangdong Province Research Center for Geoanalysis, Guangzhou 510080, China
    2Guangxi Geological and Mineral Testing Research Center, Nanning 530023, China
  • Received:2023-09-26 Online:2024-03-20 Published:2024-03-18
  • About author:1st author: liyy84@163.com

摘要:

为探讨不同硒内源调控剂对水稻吸收硒(Se)、镉(Cd)、砷(As)及土壤中Se、Cd、As形态的影响,将多种复合调理剂添加到富硒土壤中开展盆栽试验。结果表明,施用1%或2%蒙脱复合调理剂(MT)均可获得水稻增Se降Cd的效果,2%添加量效果更佳;在高硒土(土壤Se含量1.99 mg/kg)条件下,添加钙镁磷肥+磷矿粉+活性硅(GLG)可获得水稻Se过量减毒和同时降As的双重效果;在中硒土(土壤Se含量0.83 mg/kg)条件下,添加钙镁磷肥+骨粉+活性硅(GGG),水稻的增Se降As效果最佳;而在低硒土壤(土壤Se含量0.46~0.47 mg/kg)条件下,添加钙镁磷肥+生物炭+有机菌肥+活性硅(GTJG)和添加钙镁磷肥+石灰+活性硅的增Se降As效果较好。研究表明,施加适量Se内源调控剂可实现水稻增Se、降Cd和As,同时减毒的效果。

关键词: 水稻, 富硒土壤, 硒内源调控剂, 硒, 镉,

Abstract:

A pot experiment was conducted by adding multiple composite regulators to selenium-rich soil, in order to clarify the effects of different endogenous selenium regulators on the absorption of selenium (Se), cadmium (Cd), arsenic (As) by rice and the forms of Se, Cd, and As in soil. The results showed that, the application of 1% or 2% montmorillonite composite conditioner (MT) could achieve the effects of increasing selenium and reducing cadmium in rice, with a 2% addition rate having the best effect. Under the condition of high selenium soil (soil Se content of 1.99 mg/kg), applying calcium magnesium phosphate fertilizer + phosphate rock powder + active silicon (GLG) could achieve dual effects of excessive Se reduction and simultaneous As reduction in rice. Under the condition of medium selenium soil (soil Se content of 0.83 mg/kg), adding calcium magnesium phosphate fertilizer + bone powder + active silicon (GGG) had the best effect on increasing selenium and reducing arsenic in rice. However, under the condition of low selenium soil (soil Se content of 0.46-0.47 mg/kg), adding calcium magnesium phosphate fertilizer+ biochar + organic bacterial fertilizer + activated silicon (GTJG) and calcium magnesium phosphate fertilizer + lime+ activated silicon had better effect.

Key words: rice, selenium-rich soil, endogenous selenium regulator amendments, selenium, cadmium, arsenic

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