活化铁尾砂与不同添加量富硒矿粉配施对水稻富硒及生长的影响

生态学杂志 ›› 2026, Vol. 45 ›› Issue (1): 256-265.

活化铁尾砂与不同添加量富硒矿粉配施对水稻富硒及生长的影响

亢涵¹，袁梦^1,2，宫璇^3*，王博石^1,2，罗桥冰⁴，张晓蓉²，杨慧敏²，陈月²，巩宗强²

（¹沈阳建筑大学市政与环境工程学院，沈阳 110168； ²中国科学院污染生态与环境工程重点实验室，中国科学院沈阳应用生态研究所，沈阳 110016； ³东北大学资源与土木工程学院，沈阳 110004； ⁴辽宁大学环境学院，沈阳 110036）

出版日期:2026-01-10 发布日期:2026-01-09

Effects of combined application of activated iron tailings and selenium-rich mineral powder with different dosages on selenium enrichment and growth of rice.

KANG Han¹, YUAN Meng^1,2, GONG Xuan^3*, WANG Boshi^1,2, LUO Qiaobing⁴, ZHANG Xiaorong², YANG Huimin², CHEN Yue², GONG Zongqiang²

(¹School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China; ²Key Laboratory of Pollution Ecology and Environmental Engineering, Chinese Academy of Sciences, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; ³School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China; ⁴School of Environment, Liaoning University, Shenyang 110036, China).

Online:2026-01-10 Published:2026-01-09

摘要/Abstract

摘要： 本研究旨在优化活化铁尾砂与富硒矿粉配施方案，为促进水稻富硒和生长提供技术和理论支撑。开展盆栽模拟实验，固定活化铁尾砂施用量为600 kg·hm^-2，设置4种富硒矿粉添加水平（CK：0 kg·hm^-2；Se10：75 kg·hm^-2；Se20：150 kg·hm^-2；Se30：225 kg·hm^-2），另设硒酸钠组（SS20：1000 kg·hm^-2硅肥+0.48 kg·hm^-2硒酸钠），分析活化铁尾砂配施富硒矿粉对水稻富硒及生理生化指标的影响，明确最佳富硒矿粉施用量，揭示活化铁尾砂-富硒矿粉促进水稻生长的协同作用机制。结果表明，Se20组为最优处理组，其稻米富硒量达0.43 mg·kg^-1，较CK组提升437.50%；单株干物质量最高，达12.10 g。水稻分蘖期，Se20组水稻叶片超氧化物歧化酶活性及过氧化氢酶活性较CK组分别提升49.29%和63.24%。活化铁尾砂协同富硒矿粉可促进水稻抵抗氧化应激，降低土壤pH和电导率，并提升土壤有效硅和有机碳含量，改善土壤环境，增加水稻干物质积累，进而促进水稻生长。

关键词: 水稻, 活化铁尾砂, 富硒矿粉, 硒含量

Abstract: This study aims to optimize the combined application scheme of activated iron tailings and selenium-rich mineral powder, providing both technical and theoretical support for promoting selenium accumulation and growth of rice. A pot experiment was conducted. The application level of activated iron tailings was set at 600 kg·hm^-2. There were four addition levels of selenium-enriched mineral powders (CK: 0 kg·hm^-2; Se10: 75 kg·hm^-2; Se20: 150 kg·hm^-2; Se30: 225 kg·hm^-2), along with a sodium selenate treatment (SS20: 1000 kg·hm^-2 silicon fertilizer + 0.48 kg·hm^-2 sodium selenate). We analyzed the effects of the combined application of activated iron tailings and seleniumrich mineral powder on selenium accumulation and physiological and biochemical indices of rice, clarified the optimal application level of selenium-rich mineral powder, and revealed the synergistic mechanism of activated iron tailings and selenium-rich mineral powder to promote rice growth. Results showed that the Se20 treatment was the optimal one, with a rice selenium content of 0.43 mg·kg^-1, representing a 437.50% increase than CK. The highest dry matter per plant was 12.10 g. Furthermore, at the tillering stage of rice, the superoxide dismutase activity and catalase activity of leaves in Se20 group were 49.29% and 63.24% higher than those in CK, respectively. The co-application of activated iron tailings and seleniumrich mineral powder enhanced rice oxidative stress resistance, reduced soil pH and electrical conductivity, and increased soil available silicon and organic carbon content, and thereby increased dry matter accumulation and rice growth.

Key words: rice, activated iron tailings, selenium-rich mineral powder, selenium content

亢涵, 袁梦, 宫璇, 王博石, 罗桥冰, 张晓蓉, 杨慧敏, 陈月, 巩宗强. 活化铁尾砂与不同添加量富硒矿粉配施对水稻富硒及生长的影响[J]. 生态学杂志, 2026, 45(1): 256-265.

KANG Han, YUAN Meng, GONG Xuan, WANG Boshi, LUO Qiaobing, ZHANG Xiaorong, YANG Huimin, CHEN Yue, GONG Zongqiang. Effects of combined application of activated iron tailings and selenium-rich mineral powder with different dosages on selenium enrichment and growth of rice.[J]. Chinese Journal of Ecology, 2026, 45(1): 256-265.

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