蔗园恶性杂草香附子药剂防除效果评价  

Herbicide Control Effect Evaluation of Malignant Weed Nut Grass in Sugarcane Field

作　　者：李文凤[1] 张荣跃[1] 黄应昆 尹炯[1] 罗志明[1] 王晓燕[1] 单红丽[1] 

机构地区：[1]云南省农业科学院甘蔗研究所/云南省甘蔗遗传改良重点实验室,云南开远661699

出　　处：《中国农学通报》2016年第8期63-66,共4页Chinese Agricultural Science Bulletin

基　　金：现代农业产业技术体系建设专项资金"国家甘蔗产业技术体系病害防控岗位科学家"(CARS-20-2-2);云南省现代农业产业技术体系建设专项资金"云南省甘蔗产业技术体系植物保护与病害研究岗位科学家"(YNGZTX-4-92)

摘　　要：为筛选蔗园恶性杂草香附子的理想安全性除草剂,选用20%噻吩磺隆WP和65%甲·灭·敌草隆WP进行田间药效试验。田间试验结果表明:20%噻吩磺隆WP和65%甲·灭·敌草隆WP对蔗园恶性杂草香附子均具有良好的防除效果,是防除蔗园恶性杂草香附子的理想除草剂。20%噻吩磺隆WP最适宜用量为1125 g/hm^2(有效成分225 g)、65%甲·灭·敌草隆WP为3150 g/hm^2(有效成分2047.5 g)。2种药剂均可在香附子生长旺盛期(株高10~15 cm),按每公顷用药量兑水675 kg进行定向茎叶喷雾,药后15天防除效果可达87.9%以上。In order to screen herbicides with ideal safety characteristics to control malignant weed nut grass insugarcane field, 20% thifensulfuron mythl WP and 65% MCPA·ametryne·diuron WP were chosen for the fieldefficacy trial. The results showed that 20% thifensulfuron mythl WP and 65% MCPA·ametryne·diuron WPhad good control effect on nut grass. The optimum dosage of 20% thifensulfuron mythl WP and 65% MCPA·ametryne · diuron WP was 1125 g/hm2（the effective ingredient was 225 g） and 3150 g/hm2（the effectiveingredient was 2047.5 g）, respectively. These two herbicides should be applied in the vigorous growth period ofnut grass（10-15 cm high） and dissolved in 675 kg water per hectare with orientation stem leaf spraying. Thecontrol effect after 15 days could be above 87.9%.

关 键 词：蔗园 恶性杂草 香附子 药剂防除 

分 类 号：S566.1[农业科学—作物学]