草业科学2009，Vol.26Issue(11)：143-147,5.
施用杀虫剂防治害虫对紫花苜蓿种子产量的影响
Effects of pesticide application in insect pest control on alfalfa seed yield
摘要
Abstract
Proper application of pesticide in insect pest control is essential for optimizing alfalfa (Medicago sativa) seed yield. This field experiment was designed to test the effects of pesticide application on alfalfa seed yield, yield components and insect pest. The results indicated that the treatment of applying pesticide at the budding stage and podding stage increased seed yield by 134%, and also significantly increased racemes per stem, pods per raceme, and seeds per pod, compared with CK (no pesticide application). And only applying pesticide at the budding stage decreased the negative effects of insect pest on seed yield, and led to higher seed yield than that of only applying pesticide at the podding stage. Correlation analysis revealed a significant positive relationship between racemes per stem and seed yield as well as between pods per raceme and seed yield under the treatments of pesticide application in insect pest control (P＜0.05).关键词
紫花苜蓿/种子产量/虫害防治Key words
alfalfa/seed yield/insect pest control分类
农业科技引用本文复制引用
张铁军,耿志广,王赟文,王显国,毛培胜,刘富渊..施用杀虫剂防治害虫对紫花苜蓿种子产量的影响[J].草业科学,2009,26(11):143-147,5.基金项目
"十一五"国家科技支撑计划子课题新麦草等牧草种子高产关键技术及种子清选加工与质量控制技术研究(2006BAD16B02-2) （2006BAD16B02-2）
奶牛优质饲草生产技术研究及开发(2006BAD04A04-02) （2006BAD04A04-02）
