摘要
保护地粉尘法施药防治番茄病害研究结果表明：５％百菌清粉尘剂在番茄感病期每隔９～１０天施药一次，全程共施粉尘剂６次，对番茄晚疫病、叶霉病及早好病防冶效果７次调查平均分别为９４．４、８１．８和８１．２％；三种病害比农户自管田推迟发病分别为１８、２４和１６天；粉尘法比农户自管田全程可减少施药７次，减少用药量（有效成分）５３。９％，节省用工９４５小时／公顷，共计减少费用２２３１．２５元／公顷，增收１６１７１．００元／公顷。
The experiment results showed that the 5% chlorothlonil dust was effective to control tomato diseases.Treated polt at every 9-10 days,totay 6 times in the whole grow season.the control effects on late blight,leaf downy mildew and early blight were 94.4%,81.8% and 81.2% respectively.The new method is much more effective and much lower cost than that of conventional spray method.
出处
《农药》
CAS
北大核心
1996年第12期38-41,共4页
Agrochemicals
关键词
粉尘法
番茄
施药
病害
dusting,tomato diseases,greenhouse.
