杂草科学
雜草科學
잡초과학
WEED SCIENCE
2014年
4期
62-65
,共4页
太一梅%李志敏%刘萍%陈艳秋%李卫
太一梅%李誌敏%劉萍%陳豔鞦%李衛
태일매%리지민%류평%진염추%리위
25％硝磺草酮·莠去津悬浮剂%玉米田%杂草%防除
25％硝磺草酮·莠去津懸浮劑%玉米田%雜草%防除
25％초광초동·유거진현부제%옥미전%잡초%방제
mesotrione· atrazine 25％SC%maize field%weeds%control
为明确25％硝磺草酮·莠去津悬浮剂对玉米地杂草的防除效果和作物安全性，于玉米播后苗前进行土壤封闭处理、杂草3～5叶时进行杂草茎叶处理试验。结果表明：25％硝磺草酮·莠去津悬浮剂与96％精异丙甲草胺乳油混合进行玉米播后苗前处理，药后33 d 株防效达91．95％～94．01％，药后55 d 鲜质量防效达97．97％～99．45％；25％硝磺草酮·莠去津悬浮剂于杂草3～5叶时进行茎叶处理，作用速度较快，药后7 d株防效达到97．37％，药后42 d鲜质量防效为98．70％。
為明確25％硝磺草酮·莠去津懸浮劑對玉米地雜草的防除效果和作物安全性，于玉米播後苗前進行土壤封閉處理、雜草3～5葉時進行雜草莖葉處理試驗。結果錶明：25％硝磺草酮·莠去津懸浮劑與96％精異丙甲草胺乳油混閤進行玉米播後苗前處理，藥後33 d 株防效達91．95％～94．01％，藥後55 d 鮮質量防效達97．97％～99．45％；25％硝磺草酮·莠去津懸浮劑于雜草3～5葉時進行莖葉處理，作用速度較快，藥後7 d株防效達到97．37％，藥後42 d鮮質量防效為98．70％。
위명학25％초광초동·유거진현부제대옥미지잡초적방제효과화작물안전성，우옥미파후묘전진행토양봉폐처리、잡초3～5협시진행잡초경협처리시험。결과표명：25％초광초동·유거진현부제여96％정이병갑초알유유혼합진행옥미파후묘전처리，약후33 d 주방효체91．95％～94．01％，약후55 d 선질량방효체97．97％～99．45％；25％초광초동·유거진현부제우잡초3～5협시진행경협처리，작용속도교쾌，약후7 d주방효체도97．37％，약후42 d선질량방효위98．70％。
The efficacy and maize selectivity of 25% mesotrione· atrazine SC was determined experimentally in a maize field after its application as a crop preemergence treatment and postemergence treatment at the 3~5 leaf growth stage of weeds.Efficacy based on weed density of 25% mesotrione · atrazine SC in mixture with 96% S-metolachlor EC was 91.95%~94.01% at 33 days after treatment ( DAT) and 98% ~99% based on weed's fresh weight at 55 DAT, postemergence application of 25%mesotrione· atrazine SC provided 97.37%control (based on weed density) at 7 DAT days and 99%control based on biomass at 42 DAT.
