Effects of Different Fungicide Combinations on the Control of Potato Late Blight and Yield of Potato
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摘要: 以马铃薯晚疫病感病品种费乌瑞它为试验对象, 采用68%精甲霜锰锌可湿粉剂、70%安泰生丙森锌可湿粉剂和64%恶霜锰锌可湿粉剂3种药剂进行马铃薯晚疫病的防治试验, 结果表明:交替使用其中2种或3种药剂防治马铃薯晚疫病的效果优于单一使用1种药剂;68%精甲霜锰锌可湿粉剂与70%安泰生丙森锌可湿粉剂、70%安泰生丙森锌可湿粉剂与64%恶霜锰锌可湿粉剂、68%精甲霜锰锌可湿粉剂与64%恶霜锰锌可湿粉剂3种组合交替施用共喷药4次, 防效分别为65.96%、61.70%、60.34%, 商品薯产量比对照分别增产为61.74%和60.07%和52.01%。生产上可选用药剂交替使用来防治马铃薯晚疫病。Abstract: The effects of three fungicide combinations on the control of the susceptible potato cultivars/varieties Favorite were investigated, including Metalaxyl-M mancozeb (68% WG) , Antracol propineb (70% WP) and Oxadixyl mancozeb (64% WP) .Our results showed that the controlling effect of the combination of two or three fungicides is better than a single one.After the alternative application of Metalaxyl-M mancozeb (68% WG) and Antracol propineb (70% WP) , Antracol propineb (70% WP) and Oxadixyl mancozeb (64% WP) , Metalaxyl-M mancozeb (68% WG) and Oxadixyl mancozeb (64% WP) for four times, the control effects were reached 65.96%, 61.70%and 60.34% and the yields were increased by 61.74%, 60.07% and 52.01% respectively.Our results suggest that alternately application of fungicids will be benefit for the control of late blight.
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Key words:
- potato /
- potato late blight /
- fungicide /
- control effect
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