Received date: 2025-09-12
Online published: 2026-01-13
Rice seedling blight, caused by infection of Fusarium oxysporum, poses a severe threat to the safe and efficient production of rice. Currently, in agricultural practices, chemical fungicides such as hymexazol are primarily relied upon for the prevention and control of rice seedling blight. However, the long-term irrational use of these chemical fungicides not only leads to a decrease in their efficacy but also pollutes the environment. Using green pesticide synergists, such as humic acid, is an important approach to addressing this issue. This study aims to explore the effects of humic acid on the efficacy of hymexazol at different concentrations in inhibiting rice seedling blight, thereby achieving reduced use and enhanced effectiveness of hymexazol. The experimental results showed that humic acid significantly increased the inhibition rate of hymexazol at different concentrations and reduced the incidence of seedling blight under various hymexazol treatments. Furthermore, in treatments with low concentrations of hymexazol (150 mg/L and 150 mg/kg), the relative synergistic efficiency of humic acid was significantly higher than that in treatments with higher concentrations of hymexazol. Analysis of variance sources indicated that both humic acid treatment alone and its combination with hymexazol at different concentrations could significantly affect the incidence of seedling blight, seedling emergence rate, and rice seedling biomass. However, only humic acid treatment alone could significantly influence the plant height of rice. In summary, humic acid can significantly enhance the disease-suppressing effect of low-concentration hymexazol. The combined use of humic acid and hymexazol represents an important strategy for synergizing efficacy and reducing pesticide usage, which contributes to promoting green prevention and control of rice seedling blight.
Key words： rice; seedling blight; humic acid; hymexazol; relative synergistic effect
ZHOU Yujie, LUO Qin, LI Runjing, CAO Zijian, JIANG Nan . [J]. China Rice, 2026 , 32(1) : 113 -117 . DOI: 10.3969/j.issn.1006-8082.2026.01.020
| [1] | 苏磊. 水稻旱育秧高产栽培技术要点[J]. 农业工程技术, 2020, 40(11):62-64. |
| [2] | LI Y G, ZHANG X, ZHANG R, et al. Occurrence of seedling blight caused by Fusarium tricinctum on rice in China[J]. Plant Disease, 2019, 103(7):1 789. |
| [3] | WANG M, WANG P W, CAO M, et al. First report of rice seedling blight caused by Burkholderia plantarii in north and southeast China[J]. Plant Disease, 2016, 100(3): 645-646. |
| [4] | 曹阳. 水稻立枯病拮抗内生菌分离及其代谢组学的研究[D]. 哈尔滨: 东北农业大学, 2021. |
| [5] | 林佩力, 焦环德. 恶霉灵防治水稻立枯病研究[J]. 黑龙江农业科学, 1991(2): 1-5. |
| [6] | 郭鹏, 高鲁江, 崔伟. 15%恶霉灵防治水稻立枯病药效试验[J]. 农药, 2003, 42(9):36-38. |
| [7] | 李美玲, 李剑, 高菡, 等. 恶霉灵Hymexazol在稻田环境中的残留特性研究[J]. 环境科学动态, 1992(1):22-24. |
| [8] | 宋桂芳, 张世文, 庄红娟, 等. 农用地大环内酯类抗生素与杀菌剂残留污染评价[J]. 环境化学, 2022, 41(7):2 309-2 319. |
| [9] | 魏世平, 吴萌, 李桂龙, 等. 腐殖酸对低浓度百菌清的缓释增效作用[J]. 中国农业科学, 2019, 52(1):65-72. |
| [10] | 李善祥. 腐植酸类物质与农药—研究应用与展望[C]// 新世纪首届全国绿色环保农药技术论坛暨产品展示会论文集. 北京: 中国腐植酸工业协会,2002:34-43. |
| [11] | 金平, 刘山莉, 杨百艳, 等. 腐殖酸复配克露防治黄瓜霜霉病的生理机制初探[J]. 黑龙江大学自然科学学报, 1998, 15(1):124-126. |
| [12] | JIANG N, WU M, LI G L, et al. Humic substances suppress Fusarium oxysporum by regulating soil microbial community in the rhizosphere of cucumber (Cucumis sativus L.)[J]. Applied Soil Ecology, 2022, 174: 104 389. |
| [13] | JIANG N, WU M, LI G L, et al. Comparative effects of two humic substances on microbial dysbiosis in the rhizosphere soil where cucumber (Cucumis sativus L.) is grown [J]. Land Degradation and Development, 2022, 33(11): 1 944-1 953. |
| [14] | 鲁如坤. 土壤农业化学分析方法[M]. 北京: 中国农业科技出版社, 2000. |
| [15] | SMITH L J, TREE D, O’KEEFE D, et al. Development of a small-plant bioassay to assess banana grown from tissue culture for consistent infection by Fusarium oxysporum f. sp. cubense[J]. Australasian Plant Pathology, 2008, 37(2): 171-179. |
| [16] | 李俊国. 腐殖酸基水煤浆分散剂的合成、性能及其作用机理研究[D]. 西安: 陕西科技大学, 2014. |
| [17] | 王建伟, 孙力平, 员建, 等. 腐殖酸钠对钙、镁离子吸附效果的研究[J]. 环境科学与管理, 2008, 33(12):37-40. |
| [18] | 赵振东, 孙廉平, 曹正男, 等. 腐植酸对水稻产量、品质及土壤特性的影响[J]. 中国稻米, 2022, 28(1):38-42. |
| [19] | 安之冬, 管浩, 朱远芃, 等. 育秧基质配施腐植酸对水稻秧苗素质及产量的影响[J]. 中国土壤与肥料, 2022(6):173-181. |
| [20] | 王天立, 赵永德, 赵颖, 等. 黄腐酸对防治蔬菜病害的增效作用[J]. 河南化工, 1995(4):31-32. |
| [21] | 王杰, 闫鹏举, 杨春璐, 等. 污泥堆腐过程中腐殖酸组分及结构变化特征[J]. 生态环境学报, 2017, 26(1):154-158. |
| [22] | FAN H M, WANG X W, SUN X, et al. Effects of humic acid derived from sediments on growth, photosynthesis and chloroplast ultrastructure in chrysanthemum[J]. Scientia Horticulturae, 2014, 177: 118-123. |
| [23] | 于宏伟, 段书德, 牛辉, 等. 绿色农药增效剂的研究进展[J]. 江苏农业科学, 2010(2):142-143. |
| [24] | ABDEL-MONAIM M F, ISMAIL M E, MORSY K M. Induction of systemic resistance of benzothiadiazole and humic acid in soybean plants against Fusarium wilt disease[J]. Mycobiology, 2011, 39(4): 290-298. |
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