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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (29): 72-76.doi: 10.11924/j.issn.1000-6850.casb15050096

所属专题： 园艺

• 植物保护 农药 • 上一篇    下一篇

3种杀菌剂防治甜菜褐斑病间隔期及效果

乔志文,李彦丽,柏章才   

  1. 黑龙江大学农作物研究院,黑龙江大学农作物研究院,黑龙江大学农作物研究院
  • 收稿日期:2015-05-18 修回日期:2015-07-06 接受日期:2015-07-24 出版日期:2015-10-28 发布日期:2015-10-28
  • 通讯作者: 乔志文
  • 基金资助:
    农业部“甜菜现代产业技术体系东北区甜菜病害监测及防控”(nycytx-25-07-06)。

Study on Interval Periods and effects of Fungicides to Control CLS of Beet

  • Received:2015-05-18 Revised:2015-07-06 Accepted:2015-07-24 Online:2015-10-28 Published:2015-10-28

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摘要： 本试验新引入三唑类杀菌剂，以期作为苯并咪唑类杀菌剂的轮换药剂，用于甜菜褐斑病的化学防治。为明确三苯基乙酸锡、氟硅唑、苯醚甲环唑防治甜菜褐斑病的施药间隔期和防治效果以及对甜菜产质量的影响，于2013—2014 年，采用田间小区试验的方法进行实地调查测定。试验结果表明：每公顷施用25%三苯基乙酸锡可湿性粉剂1809 g、25%氟硅唑水乳剂300 mL、10%苯醚甲环唑水分散粒剂600 g，施药间隔期为3 周，防治效果分别为77.41%、77.03%、71.36%。3 种药剂对甜菜根产量和产糖量没有显著影响，但能显著提高含糖率，间隔3周施药的处理和对照相比增糖率分别为1.16%、1.56%、1.25%。

关键词: 自然坡地, 自然坡地, 土壤湿度, 气象因子, 海口

Abstract: This experiment took triazole fungicide as the replace agent of benz-imidazole fungicide to control Cercospora leaf spot for sugar beet. In order to study the effects of fentin acetate, flusilazole and difenoconazole on the interval periods and control of CLS and the yield of sugar beet, field plot experiment was conducted from 2013 to 2014. The results showed that when the interval period was 3 weeks, the control efficiency of per hectare applied with 25% fentin acetate wettable powder 1809 g, 25% flusilazole EW 300 mL and 10% difenoconazole water dispersible granule 600 g was 77.41% , 77.03% and 71.36% , respectively. These 3 fungicides did not significantly affect beet root yield and sugar yield, but significantly increased sugar rate, when the interval period was 3 weeks compared with CK, 3 fungicides could increase sugar rate by 1.16%, 1.56% and 1.25%, respectively.

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