摘要
将咪鲜安(Prochloraz)、多菌灵(Carbendazim)和福美双(Thiam)按不同比例复配的种衣剂,分别对水稻恶苗病菌(Fusariummoniliformesheld)及引起水稻苗期死苗的镰刀菌(FusariumSPP)、立枯丝核菌(Rhizoctoniasolanik櫣hn)进行室内毒力测定。结果表明:复配种衣剂对恶苗病菌、镰刀菌和立枯丝核菌表现为不同程度的增效和相加作用,其中多福咪种衣剂Ⅲ表现最突出,对3种病原菌的增效比SR分别为1 72、1 11、1 21。田间药效试验结果表明:多福咪种衣剂Ⅲ以药种比(g/g)1∶100、1∶80、1∶50包衣水稻种子,苗期对恶苗病的病株率防效为94 6%～100%,穗期的病株率防效为88 8%～96 9%,并对苗期立枯病具有良好的兼治作用,相对防效均在70%左右。优于3种单剂对恶苗病及苗期死苗的防效。
The result of toxic tests indicated that the DuoFuMi Ⅲ showed the highest activity against Fusarium monlliforme?Fusarium sp and Rnizoctonia solani.The SR was 172?111 and 121 synergism rate these three kinds of pathogons.The mixtures of prochloraz?carbendazim and thiram in different proportions showed synergized and additive actions in different degree.Rice seed was coated with DuoFuMiⅢ at dosages 1%?125% and 2% individually,calculated by percentage of seed weight.The result showed the field control effect for Fusarium miniliforme 946～100% during the stage of seedling,and 888%～969% during the stage of fringe.The field control effect(Fusarium sp.Rhizoctonia solani)was 70% during the stage of seedling.
出处
《南京农专学报》
2003年第2期28-31,共4页
Journal of Nanjing Agricultural Technology College
基金
南通市科技局资助(L299004)
关键词
种衣剂
水稻
恶苗病
苗期死苗现象
咪鲜安
多菌灵
福美双
防治效果
Duo-Fu-Mi suspension concentrates for seed dressing
Fusarium miniliforme
Fusarium sp
Rhizoctonia solani
toxic test
control effect
