【摘要】 采用田间试验和仪器测定分析的方法,观察了10.8%精喹禾灵乳油对夏大豆田禾本科杂草稗草、马唐、牛筋草的防除效果,以及杂草防除对田间光照、养分和大豆产量的影响。结果表明:10.8%精喹禾灵乳油能有效控制夏大豆田禾本科杂草的发生危害,对稗草、马唐、牛筋草的综合密度防效为94.00%~100.00%,综合鲜重防效为95.02%~100.00%;施用10.8%精喹禾灵乳油能显著提高大豆田间的透光率,降低杂草对田间养分的吸收,促进光合作用的进行,从而提高大豆产量。更多还原

【Abstract】 In this paper,10.8% quizalofop-p-ethyl EC was applied to investigate the control effects of Echinochloa crusgalli(L.) Beauv.,Eleusine indica(L.) Gaertn.,Digitaria sanguinalis(L.) Scop.and the influence of weed control on sunlight,nutrition and crop yield of soybean.The results showed that 10.8% quizalofop-p-ethyl EC had good control effects on gramineous weeds.The overall quantity control effects reached 94.00% to 100.00% and the overall fresh control effects reached 95.02% to 100.00%.The application of 10.8% quizalofop-p-ethyl EC significantly improved the light conditions in soybean field and reduced the weeds absorption of light and nutriton,resulting in a significant acceleration of photosynthesis and prominent yield enhancing.更多还原