秸秆还田对夏玉米主要害虫发生程度的影响  

Effects of straw returning on the occurrence degree of summer maize pests

作　　者：宋鹏飞[1] 毛培[1] 李鸿萍[1] 王宗超[1] 罗梅浩[1] 

机构地区：[1]河南农业大学植物保护学院,河南郑州450002

出　　处：《河南农业大学学报》2014年第3期334-338,347,共6页Journal of Henan Agricultural University

基　　金：农业部公益性行业科研专项(HY201203100)

摘　　要：在漯河、浚县2地分别设置浅耕加秸秆还田、深耕加秸秆还田、深耕秸秆不还田、隔1 a深耕加秸秆还田和隔2 a深耕加秸秆还田等5种耕作方式处理,调查不同处理条件下夏玉米苗期、粒期主要害虫和地下害虫的发生程度.结果表明,苗期食叶害虫为害后的虫害指数以浅耕加秸秆还田的处理最重,隔2 a深耕加秸秆还田的处理最轻.粒期雌穗上玉米螟的数量以深耕秸秆不还田的处理最多;雌穗苞叶、穗位叶、穗上叶和穗下叶上的蚜虫总量在各处理间变化没有规律性.地下害虫的发生数量为隔两年深耕加秸秆还田的处理最少.Based on the five different farming methods experiment of shallow tillage with straw retur- ning（CK）, deep ploughing with straw returning（DS）, deep ploughing but not add straw returning （DNS）, deep ploughing every other year combined straw returning （DS1） and deep ploughing every two years coupled with straw returning（DS2） , we investigated the occurrence of major pests and un- derground pests in summer maize seedling stage and grain stage in the field with different tillage meth- ods in Luohe and Xunxian of Henan province. The results showed that, insects-damage index of defoli- ator pests in seedling stage was the most serious compared with CK treatment, was the lightest com- pared with DS2 treatment. The quantity of Ostriniafurnacalis in female ear with DNS treatment was the highest in grain stage, there was no significant difference in the number of aphids in bract of corn ear, ear leaf, up-ear leaf and below-ear leaf among the five treatments, and the amount of underground pests was the lowest compared with DS2 treatment.

关 键 词：玉米 害虫 秸秆还田 发生程度 

分 类 号：S435[农业科学—农业昆虫与害虫防治]