大葱不同播期与葱蛆发生的关系  

Relation between different sowing times and occurrence of shallot maggot in welsh onion

作　　者：吉姣姣[1] 李雪[1] 王凤娇[1] 蒋欣梅[1] 

机构地区：[1]东北农业大学园艺学院,哈尔滨150030

出　　处：《东北农业大学学报》2007年第6期742-745,共4页Journal of Northeast Agricultural University

基　　金：东北农业大学实验中心开放项目资助;哈尔滨市科技攻关计划项目(2005AA9CN073)

摘　　要：大葱的苗期发生葱蛆危害而造成幼苗死亡,通过连续两年对不同播期下大葱葱蛆发生率的调查,研究大葱不同播期与葱蛆发生的关系。结果表明,大葱秋季育苗的播种时间与葱蛆发生有一定的相关性,播期越早,葱蛆发生率越高,危害越重,适当的晚播可以有效地避免葱蛆的发生。在黑龙江省大葱生产中,8月底到9月初是比较适合的播种期。不同的年份对葱蛆的发生虽然会产生一定影响,但基本规律是一致的。葱蛆的发生程度也与不同的品种有关,"齐叶长白"的葱蛆发生程度要低于"哈大葱一号"。The relationship between different sowing times of welsh onion in autumn and shallot maggot occurrence were studied.The results indicated that young plants died because of shallot maggot harm in seedling stage of welsh onion,occurrence ratio of shallot maggot increased with earlier sowing times,shallot maggot would be avoided effectively if there was properly latter sowing,and optimum sowing times was from last of August to first of September in production of welsh onion in Heilongjiang Province.The basic orderliness of occurrence in shallot maggot was same in different year in despite of different occurrence degree.In addition,occurrence degree in shallot maggot also contacted with different variety.Occurrence degree of shallot maggot in Hadacong1 was lower than that in Qiyechangbai.

关 键 词：大葱 播期时间 葱蛆 

分 类 号：S352.1[农业科学—作物栽培与耕作技术] S436.33[农业科学—农艺学] S633.1