480克∕升氟乐灵乳油防治棉花田杂草药效试验  

Control Efficacy of 480 g/L Trifluralin EC for Weeds in Cotton Field

作　　者：吴小虎[1] 陈业兵[1] 刘君良[1] 张小芳[1] 崔夕英 郭鹤久 

机构地区：[1]山东农业大学植物保护学院,山东泰安271018 [2]胶州市植保站,山东青岛266300

出　　处：《农药研究与应用》2010年第1期31-33,共3页Agrochemicals Research & Application

摘　　要：对480g∕L氟乐灵乳油防治棉花田杂草进行了田间实验。试验结果表明,480g∕L氟乐灵乳油,900～1080g/hm2土壤处理20d对禾本科杂草的效果较好,株防效可达85.2%～97.8%,对阔叶杂草的防效较低,仅为66.2%～85.3%;药后40d对禾本科杂草的株防效可达83.6%～95.7%,鲜重防效达86.9%～98.2%,对阔叶杂草株防效为62.3%～82.3%,鲜重防效达66.5%～85.5%。Control efficacy of 480 g/L trifluralin EC against weeds was investgated in the cotton field.Result showed that 480 g/L trifluralin EC had a good control efficacy against grasses in the pre-emergence treatment with the application rate of 900～1080 g/hm2.The control efficacy of 480 g/L trifluralin EC was 85.2%～97.8%（based on weed plant number） against grasses at 20 day after treatment with 480 g/L trifluralin EC,and was 66.2%～85.3% against broadleaf weeds.At 40 days after treatment,the control efficacy was 83.6%～95.7%（based on weed plant number）,86.9%～98.2%（based on weed plant fresh weight） against grasses weeds,62.3%～82.3%（based on weed plant number） and 66.5%～85.5%（based on weed plant fresh weight） for broadleaf weeds.

关 键 词：氟乐灵乳油 杂草 药效 

分 类 号：S482.49[农业科学—农药学]