江西农业学报2023，Vol.35Issue(10)：51-56,6.DOI:10.19386/j.cnki.jxnyxb.2023.10.009
20%烯草酮·二氯吡啶酸·氨氯吡啶酸可分散油悬浮剂对直播油菜田杂草的防治效果
Control Effect of 20%Picloram·Lopyralid·Clethodim OD on Weeds in Direct Seeding Rape Field
摘要
Abstract
In order to make clear the control effect and safety evaluation of 20%picloram·clopyralid·clethodim OD on Lapsana apogonoides,Sonchus brachyotus and Alopecurus aequalis in direct seeding spring rape fields,field efficacy trials conducted from 2020 to 2021.The results showed that application of 20%picloram·clopyralid·clethodim OD could effectively control three kinds of weeds.When the herbicide is applied at the effective dosages of 180～300 g/hm2,the weed control effect was 88.06%～95.37%after 25 days,and the weed plant control effect and the weed fresh weight control effect were 85.44%～92.33%and 85.52%～93.05%after 85 days,which were significantly better than the other three control drugs,and no harm was caused.The average yield of rapeseed was 3.95～4.12 kg after application,and the growth rate was 84.58%～92.52%,which were significantly better than the other 3 control drugs and blank control,and slightly higher than the artificial weeding treatment.The control effect on weeds increased with the increase of dosage.The best application period is 3～5 leaf stage of weeds in rape field.It is suggested that the herbicide is applied at the effective dosages of 225～300 g/hm2 in production.关键词
20%烯草酮·二氯吡啶酸·氨氯吡啶酸可分散油悬浮剂/油菜田/杂草/防治效果Key words
20%Picloram·clopyralid·dethodin OD/Rapeseed field/Weed/Control effect分类
农业科技引用本文复制引用
胡铭,罗鹏,余江,梅露明,何烈干,邹芬,晏才刚,马辉刚..20%烯草酮·二氯吡啶酸·氨氯吡啶酸可分散油悬浮剂对直播油菜田杂草的防治效果[J].江西农业学报,2023,35(10):51-56,6.基金项目
国家重点研发基金项目(2018YFD0200906-08). （2018YFD0200906-08）
