18.7%丙环·嘧菌酯悬浮剂防治水稻纹枯病效果研究.doc

%丙环·嘧菌酯悬浮剂防治水稻纹枯病效果研究
%丙环?嘧菌酯悬浮剂在晚稻纹枯病上的防治效果,结果表明:在纹枯病重发生情况下,在发病初期用药1次的防效好,持效期较长,且对水稻安全性很好。
关键词水稻纹枯病;%丙环?嘧菌酯悬浮剂;防效
中图分类号 文献标识码 A 文章编号 1007-5739(2015)16-0122-01
Study on the Effect of % Procyclidine?Azoxystrobin SC on Controlling Rice Sheath Blight
WU Hong-shou 1 ZHANG Le-xiong 2 WU Feng 3
(1 Ruihong Agricultural Integrated Station of Yugan County in Jiangxi Province,Yugan Jiangxi 335100; 2 Lake Management Bureau of Yugan County;
3 Shegeng prehensive Station of Yugan County)
Abstract The effect of % procyclidine?azoxystrobin SC on controlling late rice sheath blight were results showed that under the heavy occurrence situation of rice sheath blight,in the early stage when gave treatment 1 times the control effect of the treatment that spraying %
procyclidine?azoxystrobin SC 1 time in the early stage was good and with a longer duration,and had a good safety on rice.
Key words rice sheath blight;% procyclidine?azoxystrobin SC;control effect
%丙环?嘧菌酯悬浮剂防治水稻纹枯病效果进行试验,评价其防治效果及对作物的增产效果,为大面积推广提供科学依据,现将试验结果报告如下。
1 材料与方法
试验地概况
试验设在江西省余干县玉亭镇南关村晚稻田,土壤类型为壤土,肥力中等,作物产量水平7 500 kg/hm2以上,排灌方便,田间杂草很少。试验田各小区禾苗长势一致,栽培和肥水管理等条件一致,与当地农业生产实际相符。
试验材料
试验对象:纹枯病。供试作物品种:晚稻,品种为天优华粘。供试药剂:%丙环?嘧菌酯悬浮剂(先正达(中国)投资有限公司生产)、对照药剂为240 g/L噻呋酰胺悬浮剂(日产化学工业株式会社生产)、75%肟菌?戊唑醇水分散粒剂(拜耳作物科学公司生产)。
试验设计
试验共设5个处理,分别