摘要
为探明徐淮地区甘薯田杂草类型和防除技术,调查了甘薯田的杂草种类和数量,并研究了3种除草剂对甘薯田杂草的防除效果.结果表明:马齿苋、铁苋菜、香附子是甘薯田的主要杂草,占杂草总数量的50%以上.240g/L乙氧氟草醚乳油1 500 mL/hm2对甘薯田的杂草防效最好,45d相对株防效和鲜质量防效分别为83.00%和93.99;其次是33%二甲戊乐灵乳油4 500mL/hm2,45d相对株防效和鲜质量防效分别为75.70%和92.89%.乙氧氟草醚和二甲戊乐灵可作为甘薯田的除草剂推广使用.
The weed species in sweetpotato field were investigated,and the efficacy and selectivity of three herbicides:acetochlor,oxyfluorfen,and pendimethalin were evaluated.The results showed that Portulaca oleracea,Acalypha australis and Cyperus rotundus were the main annual weeds in sweetpotato fields,occupying more than 50.00% of the total numbers.In 45 dafter used herbicide,240 g/L oxyfluorfen EC with 1 500 mL/hm^2 and 33% pendimethalin EC with 4 500 mL/hm^2 had better control effect on weeds,the relative control effect reached 83.00% and 75.70%,the fresh mass effect reached 93.99% and 92.89%.Oxyfluorfen and pendimethalin could effectively controlled weeds in sweetpotato fields.
出处
《江苏师范大学学报（自然科学版）》
CAS
2017年第4期24-26,共3页
Journal of Jiangsu Normal University：Natural Science Edition
基金
国家甘薯产业技术体系线虫及真菌病害防治岗位项目(CARS-10-B15)
关键词
甘薯田
杂草
除草剂
防治技术
sweetpotato field
weed
herbicide
control technique
