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作 者:杨合法[1] 范聚芳[1] 戈志奇[2] 沈广成[1] 吕润海[1] 李季[3]
机构地区:[1]中国农业大学曲周实验站,曲周057250 [2]中国农业大学水利与土木工程学院,北京100193 [3]中国农业大学资源与环境学院,北京100193
出 处:《中国生态农业学报》2009年第5期933-937,共5页Chinese Journal of Eco-Agriculture
基 金:国家科技支撑计划(2006BAD02A15)资助
摘 要:通过连续3年的定位试验,研究了不同生产模式日光温室番茄生产中主要病害的发生种类、流行特点及灰霉病、晚疫病、早疫病消长动态及防治效果。结果表明:日光温室番茄病害主要以灰霉病、叶霉病、早疫病、晚疫病为主,危害严重;低温高湿使病害发生重,流行速度快,土传病害及生理性病害有加重趋势。灰霉病发病率呈逐年上升趋势;同一年份有机模式番茄主要病害发病较轻。番茄早疫病有机生产模式较无公害模式防效提高22.2%~57.1%,较常规模式提高36.4%~66.7%;番茄灰霉病有机模式较无公害模式防效提高16.4%~54.9%,较常规模式提高37.7%~73.9%;番茄晚疫病有机模式较无公害模式防效提高26.3%~44.3%,较常规模式提高47.5%~55.4%。A 3-year experiment was conducted under greenhouse conditions with different cultivation patterns (organic,integrated and conventional cultivation) to investigate the kind and epidemic characteristics of tomato main diseases.The results show that the main diseases of tomato under greenhouse are downy mildew,tomato leaf muld,early and late blight.Soil-borne and physiological diseases tend to increase due to low temperatures and high humidity in greenhouses.The incidence of downy mildew increases from year to year.Tomato main diseases under organic cultivation are less severe than those under other patterns in the same year.Control effect of early blight under organic cultivation respectively increases by 22.2%~57.1% and 36.4%~66.7% compared with integrated and conventional cultivation patterns.Those for downy mildew and late blight under organic cultivation respectively increase by 16.4%~54.9% and 37.7%~73.9%,26.3%~44.3% and 47.5%~55.4% over integrated and conventional cultivation patterns.
关 键 词:番茄 有机生产模式 无公害生产模式 常规生产模式 病害 防效
分 类 号:S436.412.1[农业科学—农业昆虫与害虫防治] S626[农业科学—植物保护]
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