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农学学报 ›› 2016, Vol. 6 ›› Issue (3): 12-15.doi: 10.11923/j.issn.2095-4050.cjas15070020

所属专题: 油料作物

• 植物保护 • 上一篇    下一篇

新型缓释甲霜灵颗粒剂对大豆根腐病主要致病菌的防治效果研究

顾鑫   

  1. 黑龙江省农业科学院 佳木斯分院/农业部佳木斯作物有害生物科学观测试验站/大豆产业体系佳木斯试验站
  • 收稿日期:2015-07-30 修回日期:2015-09-09 接受日期:2015-09-22 出版日期:2016-03-28 发布日期:2016-03-28
  • 通讯作者: 顾鑫 E-mail:guxin1111
  • 基金资助:
    公益性行业(农业)专项“作物疫病监测防控技术研究与示范”(201303018);黑龙江省自然科学基金面上项目“黑龙江省大豆根腐病病原菌种群遗传结构及ITS 序列分析”(C201449);黑龙江省杰出青年科学基金“利用SSR技术构建大豆种质抗灰斑病分子身份证”(JC2015005)。

Control Efficiency of a New Type Controlled-release Metalaxyl Granule on Main Pathogenic Bacteria of Root Rot of Soybean

  • Received:2015-07-30 Revised:2015-09-09 Accepted:2015-09-22 Online:2016-03-28 Published:2016-03-28

摘要: 为了能够在大豆整个生育期对大豆根腐病进行防治,试验在2014年采用缓释甲霜灵颗粒剂对大豆根腐病主要致病菌:大豆疫霉病菌、大豆镰孢菌进行了室内菌株菌丝生长抑制试验,同时对缓释甲霜灵颗粒剂在田间持效期及防效进行了田间试验。试验表明:缓释甲霜灵颗粒剂在室内抑菌试验中抑制率最好,对疫霉菌的EC50为0.364,对镰孢菌的EC50为0.5800,均为最小;并且田间试验中发现,在5种防治药剂中防效最好,可以有效防治大豆生长后期大豆根腐病的发病情况,是一种防治大豆根部病害的新型药剂,为绿色、高效的大豆综合防治技术奠定了一定的基础。

关键词: 马铃薯, 马铃薯, 连作, 光合特性, 速效氮含量, 相关性

Abstract: In order to control soybean root rot in the whole growth period of soybean, indoor mycelial growth inhibition test was conducted using a new type controlled- release metalaxyl granule to control the main pathogens of soybean root rot: Phytophthora sojae and soybean Fusarium in 2014. At the same time, a field experiment of the lasting period and the control effect of the new type controlled-release metalaxyl granule was carried out. The results showed that the inhibition rate of indoor test was the best, the EC50 to P. sojae was 0.364 and the EC50 to Fusarium was 0.5800, which were all the lowest. And the field experiment showed that the controlled-release metalaxyl granule had the best field control effect among the 5 kinds of bactericides. It could prevent the soybean root rot in the late growth stage. The new pesticide was an environmental friendly and high-efficiency agent, which laid a foundation for the prevention and control technology.

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