摘要
通过在糜子田播后苗前,选择常用的75%噻吩磺隆水分散粒剂、72%2,4-D丁酯乳油、50%扑草净可湿性粉剂、45%扑津.西草净可湿性粉剂、330g.L-1二甲戊灵乳油、960g.L-1异丙甲草胺乳油和38%莠去津悬浮剂7种土壤处理除草剂,分别设低、中、高量进行安全性及防效筛选试验。结果表明:45%扑津.西草净可湿性粉剂安全性最高,并且株防效和鲜重防效均达90%以上,建议用量为2 250～2 475g.hm-2;其次是50%扑草净可湿性粉剂和38%莠去津悬浮剂,建议用量分别为50%扑草净可湿性粉剂750～900g.hm-2,38%莠去津悬浮剂3 750～4 500mL.hm-2;330g.L-1二甲戊灵乳油和960g.L-1异丙甲草胺乳油药害严重,不可应用于糜子田化学除草;75%噻吩磺隆水分散粒剂及72%2,4-D丁酯乳油对禾本科杂草无效,不推荐单独应用。
After sowing and before emergence in the millet field, Selecting seven common soil treatments herbicide for 75 % Thifensulfuron-methl WG, 72 % 2,4-D butylate EC, 50 % Prometryn WP, 45 %Propazine-Simetryn WP,330 g·L^-2Pendimethalin EC, 960 g·L^-1 Metolachlor EC, 38% Atrazine SC, setting low, medium and high levels,the efficiency for security and anti-screening test was conduccted. The results showed that：the best security was 45 % Propazine-Simetryn WP,and plant control effect and fresh weight control effect reached over 90%, the proposed amount was 2 250-2 475 kg·hm^-2 ;followed by 50 % Prometryn WP and 38% Atrazine SC, the proposed amount of 50 % Prometryn WP was 750-900 g·hm^-2,the proposed amount of 38% Atrazine SC was 3 750-4 500 mL· hm^-2 ;330 g·L^-1 Pendimethalin EC and 960 g·L^-2 Metolachlor EC showed serious phytotoxicity,They could not be used in millet field of chemical weed control; 75% Thifensulfuron-methl WG and 72% 2,4-D butylate EC were invalid for grass weeds,they were not recommended applications alone.
出处
《黑龙江农业科学》
2012年第3期73-78,共6页
Heilongjiang Agricultural Sciences
基金
国家谷子糜子产业技术体系齐齐哈尔综合试验站资助项目(CARS-07-12.5-B14)
关键词
糜子
土壤处理
除草剂
安全性
药效
millet
soil treatment
herbicide
safety
efficacy
