黑龙江农业科学Issue(5)：37-42,6.DOI:10.11942/j.issn1002-2767.2025.05.0037
44％ 2甲·双氟·唑悬乳剂对黑龙江省春小麦田一年生阔叶杂草的防效评价
Evaluation of Control Efficiency of 44％ MCPA-Isooctyl·Florasulam·Carfentrazone-Ethyl SE on Annual Broadleaved Weeds in Spring Wheat Fields of Heilongjiang Province
摘要
Abstract
In order to determine the weed control effect,optimal dosage and safety of compound of 44％ MCPA-isooctyl·florasulam·carfentrazone-ethyl SE on spring wheat fields in Northeast China.The randomized block experimental design was used to conduct field efficacy test.The results showed that 211.5-352.5 mL·ha-1 of 44％ MCPA-isooctyl·florasulam·carfentrazone-ethyl SE was applied by stem and leaf spray method when the average leaf age of wheat was 4 leaf stage,and had good control effect on Chenopodium album L.,Amarathus retroflexus L.,Fallopia convolvulus L.,Xanthium strumarium L.,Solanum nigrum L..The total control efficacy of weeds after application of the pesticide were 84.3％-90.9％ in 2023 and 84.7％-93.5％ in 2024;the fresh weight control efficacy were 85.1％-92.2％ in 2023 and 86.2％-94.9％ in 2024.Overall,the comprehensive control efficacy was good to excellent.Observation on the safety of the drug on wheat after 14 days and 28 days showed that the leaf color,plant height and growth status of wheat in each treatment area were all normal,and no adverse effects on other organisms or surrounding crops were observed.Compared with the blank control area,the yield increase rate was significantly higher,ranging from 49.14％ to 66.00％ in 2023 and from 52.75％ to 68.74％ in 2024.Considering the cost and efficacy of the drug,the recommended dosage of active ingredient is 282.0-352.5 mL·ha-1.关键词
2甲4氯异辛酯/双氟磺草胺/唑草酮/小麦/阔叶杂草/防除效果/安全性Key words
MCPA-isooctyl/florasulam/carfentrazone-ethyl/wheat/broadleaf weeds/control efficacy/safety引用本文复制引用
李广雨,黄元炬,张苏新,王春,王芊..44％ 2甲·双氟·唑悬乳剂对黑龙江省春小麦田一年生阔叶杂草的防效评价[J].黑龙江农业科学,2025,(5):37-42,6.基金项目
"十四五"国家重点研发计划项目(2023YFD1401100) （2023YFD1401100）
黑龙江省农业科技创新跨越工程重点攻关项目(CX23GG14). （CX23GG14）
