摘要
为了明确2种增效剂对除草剂的减量效应,为除草剂科学减施及增效剂安全使用提供数据基础,2019年在西北荒漠绿洲生态区春玉米田,以38.5%硝·精·莠去津CS和26.7%噻隆·异噁酮SC作为茎叶处理剂,测定了激健和辉丰2种增效剂在不同施药剂量下的除草效果。结果表明:在38.5%硝·精·莠去津CS 2310 mL/hm^(2)和26.7%噻隆·异噁酮SC 120.15 mL/hm^(2)的推荐剂量下,或在它们减量15%和30%单施的情况下,38.5%硝·精·莠去津CS对玉米田杂草的防效均优于26.7%噻隆·异噁酮SC;2种药剂减量15%和30%后,在同等剂量下添加增效剂的处理优于药剂单用,激健的效果优于辉丰;药剂减量15%的处理效果优于减量30%的处理。因此,在该生态区春玉米田茎叶处理除草剂可选用38.5%硝·精·莠去津CS,推荐有效剂量为1617~1963.50 mL/hm^(2),增效剂选用激健,推荐商品用量为120.15 mL/hm^(2)。
The effect of reducing herbicide with synergist as the data basis for the herbicide reduction application was clarified in the study.The influence of two synergists Jijian and Huifeng on herbicide at different dosages were tested in the field where mesotrione·dexamethasone·atrazine 38.5%CS and thiencarbazone-methyl·isoxaflutole 26.7%SC were used as the herbicides for the treatment of stems and leaves in the spring corn area of northwest desert oasis ecological zone in 2019.The results showed that mesotrione·dexamethasone·atrazine 38.5%CS was better than thiencarbazone-methyl·isoxaflutole 26.7%SC when applied alone under the recommended dosage level(2310 mL/hm^(2) and 120.15 mL/hm^(2))or on the basis of this level reducing 15%dosage and 30%dosage.When the dosage of mesotrione·dexamethasone·atrazine and thiazsulfuron·methly·isoxone were reduced by 15%(30%)and synergists Jijian and Huifeng were separately added,two synergists both had significant synergy on mesotrione·dexamethasone·atrazine 38.5%CS and thiencarbazone-methyl·isoxaflutole 26.7%SC(P<0.05).Under the same herbicide dosage,Jijian was better than Huifeng and the effect was the worst when just using single herbicide.The herbicidal effect of 30%dosage reduction was lower than that of 15%reduction.Therefore,mesotrione·dexamethasone·atrazine 38.5%CS can be chosen for the stem and leaf treatment in the spring corn field in the zone,and its applied dosage 1617-1963.50 mL/hm^(2) were recommended with synergist Jijian at the dosage 120.15 mL/hm^(2).
作者
丁新华
王小武
蒋旭东
李双建
付开赟
吐尔逊·阿合买提
何江
郭文超
DING Xinhua;WANG Xiaowu;JIANG Xudong;LI Shuangjian;FU Kaiyun;TURSUN Ahmat;HE Jiang;GUO Wenchao(Institute of Microbial Application, Xinjiang Academy of Agricultural Sciences, Xinjiang Key Laboratory of Special Environmental Microbiology, Urumqi 830091, China;College of Agriculture, Xinjiang Agricultural University, Urumqi 830052, China;Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Key Laboratory of Integrated Pest Management on Crops in Northwestern Oasis, Ministry of Agriculture and Rural Affairs,Urumqi 830091, China)
出处
《植物保护》
CAS
CSCD
北大核心
2022年第1期297-304,共8页
Plant Protection
基金
新疆维吾尔自治区重点研发计划任务专项(2021B02002-2)。
关键词
杂草防除
春玉米田
除草剂
减量效应
增效剂
weed control
spring corn field
herbicide
decrement effect
synergist
