几种茎叶除草剂防除高粱田杂草药效和安全性研究

张建华,郭瑞峰,曹昌林,范娜,江佰阳,李光,史丽娟,彭之东,白文斌

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

Jianhua Zhang,Ruifeng Guo,Changlin Cao,Na Fan,Baiyang Jiang,Guang Li,Lijuan Shi,Zhidong Peng,Wenbin Bai

表1 不同除草剂对高粱的安全性及产量影响

Table 1 Effects of stem and leaf herbicide on the safety and production of sorghum

除草剂 Herbicide 施用剂量 Dose 药害分级 Adr classification 产量(kg/hm2) Yield 增产率(%) Yield increase rate 90%莠去津WG 90% Atrazine WG 900g/hm2 - 8 617.50C 24.22 48%莠去津WP 48% Atrazine WP 2 400g/hm2 - 8 722.50C 25.73 38%莠去津SC+增效剂 38% Atrazine SC+Synergistic agent 1 500mL/hm2+450mL/hm2 - 9 330.00B 34.49 38%莠去津SC+50%二氯喹啉酸WP+ 57% 2,4-滴丁酯EC 38% Atrazine SC+50% Quinclorac WP+ 57% 2,4-D butyl ester EC 3 000mL/hm2+750g/hm2+450mL/hm2 + 9 690.00A 39.68 75%氯吡嘧磺隆WG+50%二氯喹啉酸WP+ 28.8%氯氟吡氧乙酸异辛酯EC 75% Halosulfuron methyl WG+50% Quinclorac WP+ 28.8% Starane EC 45g/hm2+750g/hm2+450mL/hm2 ++ 9 082.50B 30.92 87.5% 2,4-滴异辛酯EC+50%二氯喹啉酸WP 87.5% 2,4-D isooctyl ester EC+50% Quinclorac WP 420mL/hm2+1 200g/hm2 + 9 195.00B 32.54 CK 6 937.50D