施用精喹禾灵对花生田间光照及养分的影响  

The Effects of Quizalofop-p-ethyl on Light and Nutrition in Peanut Fields

作　　者：张文君[1] 朱文达[2] 何燕红[3] 

机构地区：[1]农业部农药鉴定所,北京100026 [2]湖北省农业科学院植保土肥研究所,武汉430064 [3]华中农业大学园艺林学学院,武汉430070

出　　处：《华中农业大学学报》2009年第5期556-559,共4页Journal of Huazhong Agricultural University

基　　金：国家"十五"科技攻关项目(2001BA509B07)资助

摘　　要：通过田间试验观察10％精喹禾灵乳油对花生田禾本科杂草马唐和稗草的防除效果，并测定花生田间离地不同高度层的透光率，分析杂草防除对花生田间光照、养分和产量的影响。结果表明：10％精喹禾灵乳油能有效控制花生田禾本科杂草的危害，对马唐的密度防效和鲜重防效分别为90．40％～100．00％和91．70％～100．00％，对稗草的密度防效和鲜重防效分别为89．64%-99．81％和89．99％-99．79％；施用10％精喹禾灵乳油能显著提高花生田间的透光率，降低杂草对田间养分的吸收，促进光合作用的进行，从而提高花生的产量。In this paper, 10% quizalofop-p-ethyl EC was applied to investigate the control effects of Digitaria sanguinalis （L.） Scop. and Echinochloa crusgalli （L.） Beauv. , and the influence of weed control on sunlight, nutrition and crop yield of peanut. The results showed that 10% quizalofop-p-ethyl EC had good control effects on gramineous weeds. The density and fresh control effects for D. sanguinalis reached 90. 40%-100. 00% and 91.70%-100. 00% respectively, and for E. crusgallithe were 89.64%-99.81% and 89. 99%-99. 79% . The application of 10% quizalofop-p-ethyl EC significantly improved the light conditions in peanut fields and reduced the weeds absorption of light and nutrition, resuiting in a significant acceleration of photosynthesis and prominent effects of yield enhancing.

关 键 词：精喹禾灵 花生 透光率 养分 产量 

分 类 号：S482.4[农业科学—农药学] S565.2[农业科学—植物保护]