3个草甘膦复配组合对非耕地杂草的防除效果  

Study on Combinations of Glyphosate with Other Herbicides to Control Weeds in Non Cultivated Areas

作　　者：施娟娟[1] 马亚芳[1] 倪龙博 马聪[1] 倪珏萍[1] 

机构地区：[1]江苏省农药研究所股份有限公司/江苏南方农药研究中心,江苏南京210046

出　　处：《杂草科学》2015年第1期48-52,共5页Weed Science

基　　金：国家科技支撑计划(编号:2011BAE06B08-03)

摘　　要：采用室内盆栽喷雾法和田间茎叶喷雾法,研究草甘膦的复配应用技术。室内测试结果表明：草甘膦与麦草畏配比为（0.5~512）∶1对旱稗和空心莲子草均表现为相加作用;草甘膦与2甲4氯配比为（2.85~5.24）∶1对旱稗和藜均表现为相加作用;草甘膦与草铵膦配比为（0.90~10.32）∶1对旱稗表现为相加作用,对藜表现为增效作用。田间药效结果表明：药后30 d,35%麦草·草甘膦水剂在1 200~1 500 g/hm2剂量下,总草株防效和鲜质量防效分别为93.16%~97.96%和95.24%~99.42%;36%2甲·草甘膦水剂在1 296~2 592 g/hm2剂量下,对总草株防效和鲜质量防效分别为91.09%~94.77%和90.04%~95.07%;36%草甘膦·草铵膦水剂在1 404~2 808 g/hm2剂量下,总草株防效和鲜质量防效分别为92.30%~97.66%和93.08%~97.65%。3个复配剂均能有效防除非耕地杂草,持效期达30 d以上。草甘膦与除草剂复配具有较好的配伍性,与麦草畏、2甲4氯或草铵膦复配均表现为相加或增效作用,室内复配筛选结果与田间药效结果一致。3个复配剂与单剂相比,既增加了药效又提高了速效性。To provide efficacy information for product development, the ratio of glyphosate mixtures with other chemicals was studied in pot and field spraying tests. Additive effects were observed at gtyphosate： dicamba rations of （0.5 - 512） ： 1 on Echinochloa crusgaUi and Alternanthera philoxeroides, Additive effects were also found at glyphosate： 2 - methyl - 4 - chlorine at ratios of （2.85 - 5.24） ： 1 on E. crusgalli and quinoa, and for glyphosate ： glnfosinate at ratios of （0. 9 ~ 10.32） ： 1 on E. crusgalli with a synergistic effect on quinoa. In field trials dicamba- glyphosate 35% AS at 1 200 ~ 1 500 g/hm2 provided 93% -98% and 95% ~ 99% control of grass weeds based on visual assessment and fresh weight, respectively,at 30 days after spraying. Similarly, 2 methyl 4 chlorine - glyphosate 36% AS at 1 296 ~ 2 592 g/hm2 achieved 91% ~ 95% and 90% ~ 95% grass control and glyphosate -glufosinate 36% AS at 1 404 -2 808 g/hm2 con- trolled grasses at 92% ~ 98% and 93 % ~ 98% , also based on visual evaluations and fresh weight, respectively. The three glyphosate containing formulations effectively controled non - arable weeds for more than 30 days. Glyphosate was com- oatible with the other herbicides tested：dicamba.2 methyl 4 chlorine and glnfosinate. These three two- way combination had additive or synergistic effects on non - cultivated land weeds. Pot testing results were consistent with the field efficacy, and the mixtures were not only more ef- fective but also had quicker activity than the single her- bicide.

关 键 词：草甘膦 麦草畏 2甲4氯 草铵膦 复配 

分 类 号：S451.2[农业科学—植物保护]