几种茎叶除草剂防除高粱田杂草药效和安全性研究  

Study on Effect and Safety of Controlling Weed in Sorghum Field by Several Stem and Leaf Treatment Herbicide

作　　者：张建华[1] 郭瑞峰[1] 曹昌林[1] 范娜[1] 江佰阳[1] 李光[1] 史丽娟[1] 彭之东[1] 白文斌[1] Zhang Jianhua;Guo Ruifeng;Cao Changlin;Fan Na;Jiang Baiyang;Li Guang;Shi Lijuan;Peng Zhidong;Bai Wenbin(Sorghum Research Institute,Shanxi Academy of Agricultural Sciences/Shanxi Key Laboratory of Sorghum Genetic and Germplasm Innovation,Jinzhong 030600,Shanxi,China)

机构地区：[1]山西省农业科学院高粱研究所/高粱遗传与种质创新山西省重点实验室,山西晋中030600

出　　处：《作物杂志》2018年第5期162-166,共5页Crops

基　　金：山西省农业科学院特色农业技术攻关项目"山西省高粱田除草剂减施增效关键技术研究(YGG17013)";山西省科技攻关项目"山西省高粱田杂草农药减量化绿色防控技术研究(201703D221011-2)"

摘　　要：为筛选出高粱田除草效果好、价格适宜的苗后茎叶除草剂。在高粱苗后6叶期采用茎叶施药进行田间药效试验,比较了6种茎叶除草剂的药效、安全性及成本。结果表明,6种除草剂对高粱均无明显药害;38%莠去津SC 1 500mL/hm^2+增效剂450mL/hm^2对高粱田难防禾本科杂草有特效,株防效和鲜重防效分别为91.41%和93.54%,成本为330元/hm^2;38%莠去津SC 3 000mL/hm^2+50%二氯喹啉酸WP 750g/hm^2+57%2,4-滴丁酯EC 450mL/hm^2对阔叶杂草防效显著,且对杂草的综合防除效果最好,鲜重防效和株防效分别为92.76%和91.52%,成本为300元/hm^2。高粱田苗后防除一年生禾本科杂草可选用38%莠去津SC 1 500mL/hm^2+增效剂450mL/hm^2;防除一年生禾本科和阔叶杂草可选用38%莠去津SC 3 000mL/hm^2+50%二氯喹啉酸WP750g/hm^2+57%2,4-滴丁酯EC 450mL/hm^2。Our study was to select effective herbicides targeting on post emergence of sorghum stem and leaf treatment with a reasonable market value. This study compared six stem and leaf treatment herbicides of sorghum under field control. The field efficacy, safety and cost were carried out at sorghum seedings after 6 leaf stage by applications on stem and leaf treatment. The results showed that the six herbicides had no obvious damage to sorghum. 38% Atrazine SC 1500 mL/hm^2＋Enhancer 450 mL/hm^2 had special effects to the gramineous weeds, strain control and fresh weight control effect was 91.41% and 93.54%, respectively, the cost was 330 yuan/hm^2; 38% Atrazine SC 3000 mL/hm^2＋50% Quinclorac WP 750 g/hm^2＋57% 2,4-D butyl ester EC 450 mL/hm^2 had significant effects to the broadleaf weeds, and the comprehensive control effects on weeds were the best, strain control and fresh weight control effect was 91.52% and 92.76%, respectively, and the cost was 300 yuan/hm^2. 38% Atrazine SC 1500 mL/hm^2＋Enhancer 450 mL/hm^2 was recommended to be used to control gramineous weeds. 38% Atrazine SC 3000 mL/hm^2＋50% Quinclorac WP 750 g/hm^2＋57% 2,4-D butyl ester EC 450 mL/hm^2 was recommended to be used to control gramineous and broadleaf weeds.

关 键 词：高粱 茎叶除草剂 杂草防效 用药安全性 

分 类 号：S451.22[农业科学—植物保护]