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中国农学通报 ›› 2025, Vol. 41 ›› Issue (22): 1-6.doi: 10.11924/j.issn.1000-6850.casb2024-0697

• 农学·农业基础科学 •    下一篇

基于强酸富硒土壤的稻米富硒力探析

刘钊扬1(), 原坤荣1, 卢尚钦2, 黄俭宇3, 李静4, 张向辉5, 黄少伟6, 杨秀安7, 柳凯8, 周杰9, 朱志军1()   

  1. 1 广西桂平市农业农村局,广西桂平 537200
    2 广西桂平市下湾镇农业服务中心,广西桂平 537219
    3 广西桂平市厚禄乡农业服务中心,广西桂平 537221
    4 广西桂平市石龙镇农业服务中心,广西桂平 537224
    5 广西桂平市垌心乡农业服务中心,广西桂平 537227
    6 广西桂平市蒙圩镇农业服务中心,广西桂平 537222
    7 广西桂平市马皮乡农业服务中心,广西桂平 537203
    8 广西桂平市社坡镇农业服务中心,广西桂平 537206
    9 广西贺州市农业农村局,广西贺州 542899
  • 收稿日期:2024-11-15 修回日期:2025-01-15 出版日期:2025-08-05 发布日期:2025-08-11
  • 通讯作者:
    朱志军,男,1963年出生,广西桂平人,农业技术推广研究员,本科,研究方向:农业资源环境。通信地址:537200 广西桂平市西山镇一品江山小区23-1-201,E-mail:
  • 作者简介:

    刘钊扬,男,1973年出生,广西桂平人,高级农艺师,大学本科,主要从事农业技术推广工作。通信地址:537200 广西桂平市农业农村局,E-mail:

  • 基金资助:
    广西“富硒粮油和食用菌农产品标准化安全生产技术研究与示范”下属子课题“富硒粮油外源硒标准化强化生产技术研究与应用”(桂科AA17202004-5)

Study on Selenium Enrichment Capacity of Rice Based on Strong Acid Selenium Rich Soil

LIU Zhaoyang1(), YUAN Kunrong1, LU Shangqin2, HUANG Jianyu3, LI Jing4, ZHANG Xianghui5, HUANG Shaowei6, YANG Xiu’an7, LIU Kai8, ZHOU Jie9, ZHU Zhijun1()   

  1. 1 Agricultural and Rural Bureau of Guiping City, Guiping, Guangxi 537200
    2 Agricultural Service Center of Xiawan Town, Guiping, Guangxi 537219
    3 Agricultural Service Center of Houlu Township, Guiping, Guangxi 537221
    4 Agricultural Service Center of Shilong Town, Guiping, Guangxi 537224
    5 Dongxin Township Agricultural Service Center, Guiping, Guangxi 537227
    6 Agricultural Service Center of Mengxu Town, Guiping, Guangxi 537222
    7 Agricultural Service Center of Mapi Township, Guiping, Guangxi 537203
    8 Agricultural Service Center of Shepo Town, Guiping, Guangxi 537206
    9 Agricultural and Rural Bureau of Hezhou City, Hezhou, Guangxi 542899
  • Received:2024-11-15 Revised:2025-01-15 Published:2025-08-05 Online:2025-08-11

摘要:

为有效开发富硒土壤资源,推动富硒水稻产业发展,充分发挥稻米中功能性成分硒的作用,选取27个水稻品系作为试材,于强酸性且有机质、速效钾含量丰富的土壤环境中开展小区试验。结果表明,产出稻米的硒含量处于0.0086~0.0247 mg/kg的较低水平,平均值为0.0153 mg/kg,变异系数为0.258,最大值/最小值高达2.86。各品系稻米的硒富集系数因基因型不同存在极显著差异,且普遍偏低,范围仅为0.0169~0.0484,平均值为0.0299。稻米硒含量平均值仅为全国平均值的61.2%,显著低于其他富硒土壤稻作区,各品系稻米均呈现贫硒状态,这在同类研究中较为罕见。可见,除水稻基因型外,土壤性质对稻米富硒能力也具有较大影响,因此应关注生态环境的时空演变对稻米富硒能力的重塑作用。

关键词: 土壤, pH, 有机质, 速效钾, 水稻基因型, 稻米, 硒, 富集系数

Abstract:

To effectively exploit valuable selenium-rich soil resources, promote the development of selenium-rich rice industries, maximize the functional role of selenium in rice, and improve public health, this study selected 27 rice lines as experimental materials and conducted field trials in strongly acidic soil with rich organic matter and available potassium. The results showed that the selenium content of the produced rice was at a relatively low level, ranging from 0.0086 to 0.0247 mg/kg, with an average of 0.0153 mg/kg, a coefficient of variation of 0.258, and a maximum/minimum ratio as high as 2.86. The selenium enrichment coefficients of the rice lines exhibited highly significant differences due to genotype variations, and were generally low, ranging only from 0.0169 to 0.0484, with an average of 0.0299. The average selenium content in rice was only 61.2% of the national average, significantly lower than that in other selenium-rich rice-growing regions. All tested rice lines exhibited selenium deficiency, which is relatively rare in similar studies. This indicates that, in addition to rice genotype, soil properties also have a considerable influence on the selenium enrichment capacity of rice. Therefore, attention should be paid to the reshaping effect of spatiotemporal ecological changes on rice selenium enrichment.

Key words: soil, pH, organic matter, available potassium, rice genotype, rice, selenium, enrichment coefficient