40%杀草特乳油防治玉米田杂草药效的研究

Study on Pharmaceutic Effect of 40% Shacaote Ruyou on the Control of Weeds in Maize Field

室内生物活性测定结果表明：由乙草胺、２，４－Ｄ丁酯、扑草净复配而成的４０％杀草特乳油具有明显的增效作用。田间小区及大面积示范结果表明：施用杀草特４０ｋｇ／ｈｍ２对玉米田一年生单、双子叶杂草防治效果达９０％以上，一次施用可控制作物整个生育期杂草危害，对作物安全，比人工除草增产４３％～１６３％。

The result of determination of indoor biological activation shows:Shacaote Ruyou-a complex of Dimetheachlor,2,4-D Butyl and Prometryne-improve pharmaceutil effect obviously.The field plotexperiment and field trial shows that the result of control of annual monocotyledonous and dicotyledonous weeds achieved over 90% in maize field with the application of Shacaote Ruyou 4 okg/hm 2 ,The single application can control the harm of weeds during the whole growth period and safety for crop.The application of Shacaote Ruyou can increase the yield 4 3%～16 3% than the artificial control of weeds