氟啶胺灌药浓度和时间对大白菜根肿病防效的影响  

Influences of Irrigation Concentration and Time of Fluazinam on Control Effects against Chinese Cabbage Clubroot

作　　者：谭清[1] 高熹[1] 吴毅歆[1] 王再强[1] 何月秋[1] 吴国星[1] 

机构地区：[1]云南农业大学植物保护学院,云南昆明650201

出　　处：《农业灾害研究》2014年第8期1-2,共2页Journal of Agricultural Catastrophology

基　　金：公益性行业(农业)科研专项(201003029)

摘　　要：[目的]筛选出合适的氟啶胺防治大白菜根肿病的灌药时间和浓度。[方法]以室内盆栽药效试验测定了灌药时间和浓度对氟啶胺防治大白菜根肿病效果的影响。[结果]250mg/L氟啶胺对大白菜根肿病的相对防效最高，为92．32％，随着氟啶胺浓度的降低，相对防效逐渐降低；以250mg／L氟啶胺进行灌药防治大白菜根肿病时，灌药时间越早，防效越高。[结论]氟啶胺适宜的灌根方法为：浓度为250mg／L，第1次灌药时间为播种后5-11d。[Objective] The aim was to screen out the suitable irrigating time and concentration of fluazinam to control Chinese cabbage clubroot. [Method] Influences of irrigation concentration and time of fluazinam on control effects against Chinese cabbage clubroot were measured in the indoor potted efficacy trials. [Result] The result showed that the relative control effect to Chinese cabbage clubroot was highest （92.32%） when the fluazinam was irrigated at the concentration of 250 mg/L, and the relative control effect decreased gradually with the decrease of fluazinam concentrations. The relative control effect was higher with irrigating time more early when 250 mg/L fluazinam was irrigated to control Chinese cabbage clubroot. [Conclusion] The suitable irrigation method for fluazinam to control Chinese cabbage clubroot is that irrigation concentration is 250 mg/L and the first irrigating time is selected at the 5-11d after sowing.

关 键 词：氟啶胺 大白菜根肿病 灌药 防效 

分 类 号：S482.2[农业科学—农药学]