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中国生物防治学报 ›› 2025, Vol. 41 ›› Issue (5): 1133-1140.DOI: 10.16409/j.cnki.2095-039x.2025.02.045

• 研究论文 • 上一篇    

防治玉米茎腐病的枯草芽胞杆菌262XY2′颗粒剂的研制

王志远, 金梦军, 冯中红, 杨成德, 施玉安   

  1. 甘肃农业大学植物保护学院/甘肃省农作物病虫害生物防治工程实验室, 兰州 730070
  • 收稿日期:2024-10-11 发布日期:2025-10-22
  • 作者简介:王志远,男,硕士研究生,E-mail:318245039@qq.com;通信作者:金梦军,女,博士,副教授,E-mail:1678541254qq@.com;杨成德,男,博士,教授,E-mail:yangcd@gsau.edu.cn
  • 基金资助:
    甘肃省重大专项(24ZDNA009-2);国家自然科学基金(31660148)

Development of Bacillus subtilis 262XY2′ Granules for Biocontrol of Corn Stalk Rot

WANG Zhiyuan, JIN Mengjun, FENG Zhonghong, YANG Chengde, SHI Yuan   

  1. Laboratory of Biocontrol Engineering of Crop Pests and Diseases in Gansu Province/College of Plant Protection, Gansu Agricultural University, Lanzhou 730070, China.
  • Received:2024-10-11 Published:2025-10-22

摘要: 为研制出可用于防治玉米拟轮枝镰孢茎腐病的微生物制剂,本文以具有优良拮抗功能的枯草芽胞杆菌262XY2′为研究对象,进行载体和助剂的筛选及用量优化,并通过盆栽试验验证其对玉米茎腐病的防治效果。结果表明262XY2′颗粒剂的适宜配方为原粉95.5%(发酵液与白炭黑比例为3:1),碳酸钙1%,羧甲基纤维素钠1.5%,硫酸钠2%。获得的枯草芽胞杆菌262XY2′颗粒剂活菌数达2.56×1010 cfu/g、杂菌率为1.27%、细度为100%、含水率为14.57%以及pH值为6.90,均符合生物农药产品国家标准。盆栽防病评价结果表明,262XY2′颗粒剂在施用量为基质的0.4%时,对玉米苗期拟轮枝镰孢茎腐病的室内盆栽防效达60.18%。

关键词: 枯草芽胞杆菌, 玉米, 颗粒剂, 生物防治, 玉米茎腐病

Abstract: In order to develop a microbial agent that can be used to control Corn Stalk Rot caused by Fusarium verticillioides, Bacillus subtilis 262XY2' with the excellent antagonistic ability was used as material, the type and quantity of carries and additives were optimized, and the control effect of 262XY2′ granules on Corn Stalk Rot was verified through pot experiments. The results showed that the optimal component of 262XY2′ granules was 95.5% of original powder (with a ratio of fermentation broth : silica is 3:1), 1% of calcium carbonate, 1.5% of sodium carboxymethylcellulose, and 2% of sodium sulfate, the viable bacteria count of B. subtilis 262XY2′ will reach to 2.56×1010 cfu/g, finally. In addition, the pollution rate of other microorganisms, fineness, moisture content, pH value of 262XY2′ granules were 1.27%, 100%, 14.57% and 6.90, respectively, which comply with the national standards for biopesticide products. The pot experiments of 0.4% 262XY2′ granules indicated that the control efficiency of 262XY2′ on maize stalk rot caused by F. verticillioides was 60.18% during the seedling stage.

Key words: Bacillus subtilis, corn, granules, biological control, corn stem rot

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