湖北农业科学 ›› 2022, Vol. 61 ›› Issue (8): 66-68.doi: 10.14088/j.cnki.issn0439-8114.2022.08.011

• 植物保护 • 上一篇    下一篇

四种杀菌剂防治玉米茎腐病的田间药效及产量效应研究

张金影a, 黄蓉a, 王美美a, 胡慈银a, 王理想a, 李俊凯a,b   

  1. 长江大学, a.农学院; b.长江大学农药研究所, 湖北 荆州 434025
  • 收稿日期:2022-10-07 出版日期:2022-04-25 发布日期:2022-05-12
  • 通讯作者: 李俊凯(1969-),男,湖北荆门人,教授,博士,主要从事新农药研究与开发,(电话)18986662669(电子信箱)junkaili@yangtzeu.edu.cn。
  • 作者简介:张金影(1995-),女,内蒙古通辽人,在读硕士研究生,研究方向为新农药研究与开发,(电话)13227624446(电子信箱)zhangjy19950103@163.com。
  • 基金资助:
    国家重点研发计划项目(2018YFD0200500); 国家自然科学基金项目(31672069)

Effects on corn stalk rot field control and yield of four fungicides

ZHANG Jin-yinga, HUANG Ronga, WANG Mei-meia, HU Ci-yina, WANG Li-xianga, LI Jun-kaia,b   

  1. a. College of Agriculture; b. Institute of Pesticides, Yangtze University, Jingzhou 434025, Hubei,China
  • Received:2022-10-07 Online:2022-04-25 Published:2022-05-12

摘要: 为了筛选出高效防治玉米茎腐病的杀菌剂,选用6%戊唑醇悬浮种衣剂、350 g/L精甲霜灵种子处理乳剂、25 g/L咯菌腈悬浮种衣剂、10%嘧菌酯悬浮种衣剂4种杀菌剂,采用拌种法进行防治玉米茎腐病的田间药效试验,并进行了产量比较。结果表明,4种杀菌剂在2个不同剂量下对玉米茎腐病都有明显的防治效果,但同一药剂不同剂量之间差异极显著。在推荐的高剂量下, 4种杀菌剂对玉米茎腐病的防治效果均在80%以上,其中,10%嘧菌酯悬浮种衣剂防治效果最高。10%嘧菌酯悬浮种衣剂以200 mL/100 kg种子处理的产量显著高于其他处理,达14 086.67 kg/hm2。在生产中建议根据戊唑醇、精甲霜灵、咯菌腈和嘧菌酯等药剂的推荐用药量,以嘧菌酯为主体,与其他3种药剂进行轮换、复配使用。

关键词: 杀菌剂, 玉米茎腐病, 田间防治效果, 产量

Abstract: To screen effective fungicides to control the corn stalk rot, four fungicides were selected6% tebuconazole suspension seed coating agent, 350 g/L metalaxyl-M seed treatment emulsion, 25 g/L fludioxonil suspension seed coating agent and 10% azoxystrobin suspension seed coating agent. The field efficacy test of corn stem rot control was carried out by seed dressing method, and the yield was compared. The results showed that the four fungicides had apparent control effect at 2 doses, with extremely differences in different dose as the same fungicide. At the recommended high dose, the control effects of the four fungicides on corn stem rot were more than 80%, of which 10% azoxystrobin suspension seed coating had the highest control effect. The yield of 10% azoxystrobin suspension seed coating agent treated with 200 mL/100 kg seed was significantly higher than that of other treatments, reaching 14 086.67 kg/hm2. In the production, it was suggested to rotate and mix pyrimethanil with the other three agents according to the recommended dosage of tebuconazole, metalaxyl-M, fludioxonil and azoxystrobin, taking the azoxystrobin as the main body, alternated or mixed with the other 3 fungicides.

Key words: fungicide, corn stalk rot, field control efficiency, yield

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