一季晚粳稻曲病防治药剂筛选试验  

Effect of Different Spraying Time and Frequency on Prevention and Control of Rice False Smut in Late Season Japonica Rice

作　　者：刘小林[1] 辛海文 杜贵勇 黄友才 龙瑞 沈春修[1] Liu Xiaolin et al(Yichun University, Yichun 336000, China)

机构地区：[1]宜春学院,江西宜春336000 [2]万载县农业局,江西万载336100

出　　处：《安徽农学通报》2017年第5期64-65,共2页Anhui Agricultural Science Bulletin

基　　金：江西省宜春学院地方发展研究中心2015年度项目(课题编号:2015DF046)

摘　　要：万载县粳稻稻曲病发生轻重,一般与品种和抽穗期天气有关,选择最佳的防治时期和确定最佳的施药次数,是防治稻曲病的关键。试验结果表明,一季晚粳采用5%纹曲星1 200m L/hm2、用水量750kg防治稻曲病效果较好,最佳时期为抽穗前5~7d和始穗至抽穗期各施一次药,防效可达72.47%。The occurrence of rice false smut is related to the weather and varieties in heading stage of the japonica rice, it is the key for the prevent ice false smut that choosing the best period of prevention and determining the optimal number of pesticide. Test results show that the prevention and control effect of 5% Wenquxing with 1200mL/hm^2 dose and 750kg of water is best, and the best time is before 5 to 7 days for earing beginning spike to heading stage with the control effect of 72.47%.

关 键 词：一季晚粳 稻曲病 防治适期 防治效果 

分 类 号：S435[农业科学—农业昆虫与害虫防治]