Crops ›› 2018, Vol. 34 ›› Issue (5): 167-172.doi: 10.16035/j.issn.1001-7283.2018.05.027

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Screening of Postemergence Herbicides in the Broad Bean Field

Zhao Cunhu,Kong Qingquan,Chen Wenjin,He Xiaoyong,Tian Xiaoyan   

  1. Plant Protection Institute, Inner Mongolia Academy of Agricultural, Animal Husbandry Sciences, Hohhot 010031, Inner Mongolia, China
  • Received:2018-03-21 Revised:2018-06-27 Online:2018-10-15 Published:2018-10-12

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Abstract:

To screen out the herbicide suitable for use in broad bean field in central Inner Mongolia, three species of broadleaf weed herbicides were recombined as one grass weed herbicide and used to control weeds in broad bean field. The efficiency and safety of the combined herbicides were detected in the tested broad bean field. The results showed that the three herbicides were 10% fluoroglycofen-ethyl EC, 21.4% acifluorfensodium AS and 48% hentazon AS and 5% quizalofop-p-ethyl EC compound, they all had good control effect on weeds in the broad bean field whether it was the constant combination treatment or doubling combination treatment. The control effect of all treatments on the fresh weight of weeds was higher than that on plants of weeds, and the control effect of barnyard weeds was not significantly different. The total control effect of weeds and the control effect of broadleaf weeds that goosefoots and Amaranthus retroflexus was doubling combination treatment significantly better than the combination treatment, and the difference was extremely significant. Field safety investigation showed that 5% quizalofop-p-ethyl EC 60g/hm 2+48% hentazon AS 720, 1440g/hm2 treatments were very safe for broad bean. 5% quizalofop-p-ethyl EC 60g/hm2+21.4% acifluorfensodium AS 321, 642g/hm2 treatments ranked the second. 5% quizalofop-p-ethyl EC 60g/hm2+10% fluoroglycofen-ethyl EC 90, 180g/hm2 treatments was not safe.

Key words: Broad bean, Herbicide, Control efficiency, Safety

Table 1

The design of compound combination for stem, leaf treatment of herbicides"

药剂Herbicide 施药剂量(g/hm2)
Dosage
5%精喹禾灵乳油 (60g/hm2) 48%苯达松AS 720
5% quizalofop-p-ethyl EC 48% bentazon AS 1 440
10%乙羧氟草醚EC 90
10% fluoroglycofen-ethyl EC 180
21.4%三氟羧草醚AS 321
21.4% acifluorfensodium AS 642
空白对照CK —

Table 2

The height of broad bean after the application 15d"

药剂Herbicide 施药剂量(g/hm2)
Dosage		 株高Plant height (cm) 平均(cm)
Average		 比空白对照降低(%)
Reduce than CK
Ⅰ Ⅱ Ⅲ Ⅳ
5%精喹禾灵乳油(60g/hm2) 48%苯达松AS 720 46.6 46.0 46.4 46.0 46.3aA 0.2
5% quizalofop-p-ethyl EC 48% bentazon AS 1 440 46.5 45.8 46.0 46.3 46.2aA 0.4
10%乙羧氟草醚EC 90 46.2 46.0 45.8 46.5 46.1aA 0.6
10% fluoroglycofen-ethyl EC 180 44.3 42.6 44.0 43.6 43.6bB 6.0
21.4%三氟羧草醚AS 321 42.6 43.7 41.5 42.6 42.6cBC 8.2
21.4% acifluorfensodium AS 642 43.0 41.2 40.3 42.5 41.8cC 9.9
空白对照CK — 46.7 46.0 46.5 46.5 46.4aA —

Table 3

Strain control effect of respective treatment on broad bean field weeds after the application 15d"

药剂Herbicide 施药剂量
(g/hm2)
Dosage		 株防效Strain control effect (%) 总株防效(%)
Sum strain
control effect
稗草
Barnyard grass		 藜
Goosefoots		 反枝苋
Amaranthus retroflexus
5%精喹禾灵乳油(60g/hm2) 48%苯达松AS 720 93.0aA 87.2bB 85.8cdC 90.2bB
5% quizalofop-p-ethyl EC 48% bentazon AS 1 440 94.0aA 100.0aA 94.0bAB 94.9aA
10%乙羧氟草醚EC 90 94.6aA 65.6cC 88.2cBC 88.6bcBC
10% fluoroglycofen-ethyl EC 180 94.0aA 89.3bB 96.1aA 94.0aA
21.4%三氟羧草醚AS 321 92.9aA 71.7cC 80.9dC 86.7cC
21.4% acifluorfensodium AS 642 93.4aA 91.4bB 95.3abAB 93.7aA

Table 4

Strain control effect of respective treatment on broad bean field weeds after the application 30d"

药剂Herbicide 施药剂量
(g/hm2)
Dosage		 株防效Strain control effect (%) 总株防效(%)
Sum strain
control effect
稗草
Barnyard grass		 藜
Goosefoots		 反枝苋
Amaranthus retroflexus
5%精喹禾灵乳油(60g/hm2) 48%苯达松AS 720 93.0aA 94.3bB 86.8cdCD 92.6bB
5% quizalofop-p-ethyl EC 48% bentazon AS 1 440 94.0aA 100aA 93.3abAB 96.6aA
10%乙羧氟草醚EC 90 94.6aA 71.2cD 90.1bcBC 90.7bcB
10% fluoroglycofen-ethyl EC 180 94.0aA 90.6bBC 95.7aA 95.7aA
21.4%三氟羧草醚AS 321 92.9aA 79.3cCD 83.3dD 89.5cB
21.4% acifluorfensodium AS 642 93.4aA 92.7bB 94.5aAB 95.5aA

Table 5

Fresh weight control effect of respective treatment on broad bean field weeds after the application 30d"

药剂Herbicide 施药剂量
(g/hm2)
Dosage		 鲜重防效Fresh weight control effect (%) 总鲜重防效(%)
Sum fresh weight control effect
稗草
Barnyard grass		 藜
Goosefoots		 反枝苋
Amaranthus retroflexus
5%精喹禾灵乳油(60g/hm2) 48%苯达松AS 720 97.5aA 98.7bB 92.0cC 95.4cB
5% quizalofop-p-ethyl EC 48% bentazon AS 1 440 98.6aA 100.0aA 98.0aA 99.0aA
10%乙羧氟草醚EC 90 98.4aA 89.1cC 94.2bB 92.1dC
10% fluoroglycofen-ethyl EC 180 98.6aA 98.0bB 98.7aA 98.4bA
21.4%三氟羧草醚AS 321 97.3aA 91.7cC 90.9cC 91.7dC
21.4% acifluorfensodium AS 642 98.1aA 98.0bB 98.6aA 98.3bA
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