Crops ›› 2018, Vol. 34 ›› Issue (5): 162-166.doi: 10.16035/j.issn.1001-7283.2018.05.026

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

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

  1. Sorghum Research Institute, Shanxi Academy of Agricultural Sciences/Shanxi Key Laboratory of Sorghum Genetic and Germplasm Innovation, Jinzhong 030600, Shanxi, China
  • Received:2018-03-20 Revised:2018-07-11 Online:2018-10-15 Published:2018-10-12
  • Contact: Wenbin Bai

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Abstract:

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 1500mL/hm 2+Enhancer 450mL/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 330yuan/hm 2; 38% Atrazine SC 3000mL/hm 2+50% Quinclorac WP 750g/hm 2+57% 2,4-D butyl ester EC 450mL/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 300yuan/hm 2. 38% Atrazine SC 1500mL/hm 2+Enhancer 450mL/hm 2 was recommended to be used to control gramineous weeds. 38% Atrazine SC 3000mL/hm 2+50% Quinclorac WP 750g/hm 2+57% 2,4-D butyl ester EC 450mL/hm 2 was recommended to be used to control gramineous and broadleaf weeds.

Key words: Sorghum, Stem and leaf treatment herbicides, Control effect, Safety

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

Table 2

Investigation on weed control in sorghum field after herbicide treatment of stem and leaf %"

除草剂
Herbicide		 施用剂量
Dose		 禾本科杂草防效Gramineous weed
control effect		 阔叶杂草防效
Broadleaf weed control effect		 总防效
Total control effect
株防效
Plant control effect		 鲜重防效
Fresh weight control effect		 株防效
Plant control effect		 鲜重防效
Fresh weight control effect		 株防效
Plant control effect		 鲜重防效
Fresh weight control effect
90%莠去津WG 90% Atrazine WG 900g/hm2 68.35D 71.59D 81.24C 82.46C 75.80C 77.03C
48%莠去津WP 48% Atrazine WP 2 400g/hm2 73.85C 75.12C 82.48C 83.65C 78.17C 79.39C
38%莠去津SC+增效剂
38% Atrazine SC+ Synergistic agent		 1 500mL/hm2+450mL/hm2
 91.41A
 93.54A
 83.29C
 85.10C
 87.35B
 89.32B
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

 84.47B


 87.96B


 98.56A


 97.56A


 91.52A


 92.76A
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


 81.25B


 85.52B


 92.46B


 90.34B


 86.86B


 87.93B
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
 82.24B
 86.45B
 92.23B
 91.12B
 87.24B
 88.79B

"

除草剂Herbicide 施用剂量Dose 使用成本Cost
90%莠去津WG 90% Atrazine WG 900g/hm2 300
48%莠去津WP 48% Atrazine WP 2 400g/hm2 300
38%莠去津SC+增效剂38% Atrazine SC+Synergistic agent 1 500mL/hm2+450mL/hm2 330
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
 300
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
 210
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
 210
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