500 g/L乙氧呋草黄·苯嗪草酮悬浮剂防除甜菜田阔叶杂草的效果及对甜菜产量的影响  

Efficacy of ethofumesate+metamitron 500 g/L SC on broadleaf weeds and impact on sugar beet yield

作　　者：王新星 沈金健 施俊羽 WANG Xinxin;SHENG Jinjian;SHI Junyu(Jiangsu Good Harvest-Weien Agrochemical Co.,Ltd.,Qidong 226200,Jiangsu,China)

机构地区：[1]江苏好收成韦恩农化股份有限公司,江苏启东226221

出　　处：《世界农药》2023年第10期45-49,共5页World Pesticide

摘　　要：为明确500 g/L乙氧呋草黄·苯嗪草酮悬浮剂对甜菜田一年生阔叶杂草的防除效果和对甜菜田的安全性,于甜菜播后苗前土壤喷雾使用,定期调查杂草防效及其对甜菜安全性的影响。结果表明:500 g/L乙氧呋草黄·苯嗪草酮悬浮剂使用剂量为3 750~5 250 g a.i./hm^(2)时,药后15、30、45 d,对甜菜阔叶杂草(灰藜、反枝苋、龙葵)的总草株防效分别为100%、79.28%~84.68%、81.52%~86.51%,药后45 d时鲜重防效与株防效结果基本一致,且在试验剂量下对作物出苗、生长发育及产量无明显影响。500 g/L乙氧呋草黄·苯嗪草酮悬浮剂可以有效防除甜菜田一年生阔叶杂草,推荐使用剂量为3 750~5 250 g a.i./hm^(2)。In order to determine the control effect of ethofumesate+metamitron 500 g/L SC on annual broad-leaved weeds in sugar beet field and the safety of sugar beet fields,it was used to spray the soil before the seedling after sugar beet planting,and the weed control effect and its impact on sugar beet safety were regularly investigated.The results showed that when the dosage of 3750-5250 g a.i./ha,the total plant control effect on the broad-leaved weeds(Chenopodium album Linn.,Amaranthus retroflexus Linn.and Solanum nigrum Linn.)in sugar beet were 100%,79.28%-84.68%and81.52%-86.51%15,30,45 days after the application,respectively.The fresh weight control effect was basically consistent with the plant control effect at the 45 days after the application.And there was no significant impact on crop emergence,growth and development,and yield under the experimental dose.Ethofumesate+metamitron 500 g/L SC could effectively control the annual broad-leaved weeds in sugar beet field and recommended dosage was 3750-5250 g a.i./ha.

关 键 词：苯嗪草酮 乙氧呋草黄 甜菜 阔叶杂草 产量 

分 类 号：TQ457[化学工程—农药化工]