YAN Feng.Field Efficacy Evaluation of Several Fungicides Against Downy Mildew of Millet[J].HEILONGJIANG AGRICULTURAL SCIENCES,2022,(06):49-52.[doi:10.11942/j.issn1002-2767.2022.06.0049]
不同拌种剂对谷子白发病的防效评价
- Title:
- Field Efficacy Evaluation of Several Fungicides Against Downy Mildew of Millet
- 文献标志码:
- A
- 摘要:
- 为了降低黑龙江省谷子白发病的危害,筛选出有效控制谷子白发病的药剂,本研究采用田间小区试验方法测定了5种复配型拌种剂在推荐剂量下对谷子白发病的防治效果及安全性。结果表明:各拌种处理对谷子节数、千粒重无显著性影响;除25%甲霜·霜霉威处理外,其余处理均对株高有抑制作用;25%甲霜·霜霉威、70%甲霜·锰锌处理对谷子穗长和产量无显著性影响;5种拌种剂对谷子白发病防效均在70%以上,效果良好,其中防效最佳的是25%甲霜·霜霉威和70%甲霜·锰锌,防效分别为86.2%和88.8%。综上,在黑龙江省谷子生产中对谷子白发病的防治可以优先选用25%甲霜·霜霉威和70%甲霜·锰锌,其防治效果好且能维持较高的谷子产量。
- Abstract:
- In order to reduce the harm of millet downy mildew in Heilongjiang Province,and screen out effective agents for control of millet downy mildew,the field trial was used to determine the control efficiency of 5 kinds of compound fungicides on millet downy mildew and its safety to millet with dose design (recommend dose).The results showed that fungicides had no significant effect on the node number and thousand-grain weight of millet.Except for 25% metalaxyl propamocarb,all the treatments had inhibitory effect on plant height.25% metalaxyl propamocarb and 70% metalaxyl mancozeb had no significant effect on ear length and yield of millet.The control effect of 5 kinds of fungicides on millet downy mildew were all above 70%,among which 25% metalaxyl propamocarb and 70% metalaxyl mancozeb were the best,the control effect was 86.2% and 88.8%,respectively.In conclusion,25% metalaxyl propamocarb and 70% metalaxyl mancozeb should be selected for the control of millet downy mildew,the control effect is better and does not affect the yield.
参考文献/References:
[1]李荫梅.谷子育种学[M].北京:中国农业出版社,1997.
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备注/Memo
收稿日期:2022-03-12