摘要
探讨了不同施肥与覆盖对百合桃蚜种群变动的影响。结果表明,在大棚内氮量一定的条件下,高钾处理在百合现蕾期和成熟期蚜量较低,说明钾元素在百合养分积累和分配上起着较大的作用,从而影响桃蚜在寄主上的取食;遮阳网双层覆盖的桃蚜数量高于单层覆盖;露天栽培的百合上下部叶片和花蕾桃蚜数量明显高于茎部和中部叶片。
The effects of cultivation technique on the population dynamics of M. persicae were studied. When the applied nitrogen （N） was same, high potassium （K） caused M. persicae populations decreased at the florescence and mature period of lily. It indicated that high K affected the nutrition accumulation and distribution, and influenced M. persicae populations on lily. Shortage of illumination, tender leaves were favorable for aphid＇s injury. The aphid populations density under doublecover in greenhouse was higher than under single-cover. In outdoor, M. persicae mainly damaged top-leaves, downleavesand flower,but under cover condition the stem and mid-leaves became tender and was easy to be injured.
出处
《湖北农业科学》
北大核心
2005年第4期62-64,共3页
Hubei Agricultural Sciences
基金
广东省科技厅计划项目(2002C20156)
广东省连州市科技局项目
关键词
栽培措施
桃蚜
钾
光照
cultivation technique, Myzus persicae, potassium, illumination
