| 引用本文: | 徐克全, 金立新, 张华, 时章亮, 刘晓波, 徐洲, 包雨函, 邓欢.富硒、高镉地质背景下水稻种植实验研究[J].沉积与特提斯地质,2021,41(4):648-655.[点击复制] |
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| 富硒、高镉地质背景下水稻种植实验研究 |
| 徐克全1,2,金立新1,2,张华1,2,时章亮1,2,刘晓波1,2,徐洲1,2,包雨函1,2,邓欢1,2 |
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(1. 四川省地质调查院, 四川 成都 610081;
2. 稀有稀土战略资源评价与利用 四川省重点实验室, 四川 成都 610081) |
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| 摘要: |
| 富硒（Se）的土地常常富镉（Cd），如何从该类土地中过滤掉Cd而安全地利用Se是农业生产的关键。本文以水稻种植为切入点，选取了7种水稻品种，以硅肥调节和农家常规种植方式作为对照进行了实验田与对照田实验。实验结果发现：（1）硅肥具有通过调节土壤理化性质、促进Se和Cd有效态的释放以及通过与Cd2+反应降低Cd有效态的双重效果，使水稻更有利于富集Se而不富集Cd；（2）“深两优5814”和“C两优华占”水稻品种，在富集Se和抑制Cd方面的效果上较好。 |
| 关键词: 农业地质 富Se高Cd土地 硅肥 土壤理化性质 水稻品种 |
| DOI：10.19826/j.cnki.1009-3850.2021.11002 |
| 附件 |
| 投稿时间：2021-04-22修订日期：2021-08-28 |
| 基金项目:省地勘基金项目：四川省“金土地工程”2010年度18个土地整理区农业地质调查（川国土资函[2010]942号）；宜宾市农业科技创新专项资金项目：宜宾市农工委科兴办[2013]1号 |
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| Rice planting experiment under Se-rich and Cd-high geological background |
| XU Kequan1,2, JIN Lixin1,2, ZHANG Hua1,2, SHI Zhangliang1,2, LIU Xiao1,2, Xu Zhou1,2, BAO Yuhan1,2, Deng Huan1,2 |
(1. Sichuan Geological Survey, Chengdu 610081, China;
2. Sichuan Key Laboratory of Rare earth Strategic Resources Evaluation and Utilization, Chengdu 610081, China) |
| Abstract: |
| To make full use of the results of Se-rich soil found in agro-geological survey and develop the safe utilization of Se-rich land in Se-rich and high Cadmium (Cd) areas, 7 rice varieties, silicon fertilizer regulation and conventional farming methods have been select as the control parameters by setting up the test field and the control field. The results show that: (1) The Silicon fertilizer has dual effects on promoting the release of available states of Se and Cd by regulating soil physical and chemical properties and on reducing available states of Cd by reacting with Cd2+, making rice more conducive to the enrichment of Se but less conducive to the enrichment of Cd. (2) The rice kinds of "Shenliangyou 5814" and "C liangyou huazhan" have better effects on enrichment of Se and on inhibition of enrichment of Cd. |
| Key words: agrogeology Se Cd silicon fertilizer soil physicochemical properties rice |