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Composite herbicide for peanut field

A compound herbicide and peanut technology, applied in the field of pesticides, can solve the problems of unsatisfactory weed control effect, poor grass weed control effect, narrow herbicidal spectrum, etc., to reduce the cost of weed control, increase peanut production, Enhanced herbicidal activity

Inactive Publication Date: 2009-07-22
INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing herbicides for peanut fields have problems such as narrow herbicidal spectrum and unsatisfactory weed control effect. For example, quizalofop-p-ethyl has good control effect on gramineous weeds, but is ineffective against broad-leaved weeds, and fomesafen is effective against broad-leaved weeds. Good control effect on leaf weeds, poor control effect on gramineous weeds
So far, domestic and foreign patents have not mentioned the combination of lactofen and clethodim two herbicides

Method used

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  • Composite herbicide for peanut field
  • Composite herbicide for peanut field
  • Composite herbicide for peanut field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The emulsifiable concentrates are produced according to the above process according to the following weight percentages of each component: lactofen 5%, clethodim 37%, emulsifier OP-20 12%, solvent xylene 46%. The indoor toxicity test results (Table 1 and Table 2) show that the co-toxicity coefficients of the compound herbicides of this example on gramineous weeds and broad-leaved weeds are 158.0 and 194.4, respectively, and the synergistic effect is significant. The field efficacy test results (Table 3) show that the compound herbicide of this example is at 20, 40, 60, 80g a.i. / hm 2 The control effect of gramineous weeds is 85.8%-96.9%, the control effect of broadleaf weeds is 86.1%-95.8%, and the yield-increasing effect of peanuts is 14.6%-32.9%, which are higher than lactofen The use of clethodim alone shows that compared with lactofop-p-ethyl and clethodim alone, the compound herbicide of this example can significantly expand the herbicidal spectrum, increase herbicidal ...

Embodiment 2

[0026] Emulsifiable concentrates are produced according to the above process according to the following weight percentages of each component: lactofen 7%, clethodim 35%, emulsifier NP-910%, solvent xylene 48%. The indoor toxicity test results (Table 1 and Table 2) show that the co-toxicity coefficients of the compound herbicides of this example on gramineous weeds and broad-leaved weeds are 175.9 and 181.9, respectively, and the synergistic effect is significant. The field efficacy test results (Table 4) show that the compound herbicide of this example is at 20, 40, 60, 80g a.i. / hm 2 The control effect of gramineous weeds is 84.3%-96.9%, the control effect of broad-leaved weeds is 89.1%-96.5%, and the yield-increasing effect of peanuts is 14.3%-29.9%, all higher than lactofen The use of clethodim alone shows that compared with lactofop-p-ethyl and clethodim alone, the compound herbicide of this example can significantly expand the herbicidal spectrum, increase herbicidal activity,...

Embodiment 3

[0028] Emulsifiable concentrates are produced according to the above process according to the following weight percentages of each component: lactofen 10%, clethodim 31%, emulsifier By-40 14%, and solvent xylene 45%. The indoor toxicity test results (Table 1 and Table 2) show that the co-toxicity coefficients of the compound herbicides of this example on gramineous weeds and broad-leaved weeds are 193.3 and 178.4, respectively, and the synergistic effect is significant. The field efficacy test results (Table 5) show that the compound herbicide of this example is at 20, 40, 60, 80g a.i. / hm 2 The control effect of gramineous weeds is 85.1%-97.1%, the control effect of broadleaf weeds is 86.9%-96.4%, and the yield-increasing effect of peanuts is 11.6%-28.3%, which are higher than lactofen The use of clethodim alone shows that compared with lactofop-p-ethyl and clethodim alone, the compound herbicide of this example can significantly expand the herbicidal spectrum, increase herbicidal...

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Abstract

The invention relates to a composite herbicide for a peanut field, which belongs to the field of pesticides and comprises the following components in percentage by weight: 1 to 40 percent of lactofen, 1 to 40 percent of clethodim, 2 to 18 percent of emulsifier, and 2 to 96 percent of solvent. The composite herbicide is applied to stem leaves of weeds at the leaf development stage with 2 to 4 leaves in the peanut field through spraying, and can effectively prevent and eliminate grassy weeds and broad leaved weeds; and compared with the single usage of the lactofen and the clethodim, the composite herbicide can enlarge a herbicide controlling spectrum, improve the peanut yield, and reduce the chemical using cost.

Description

Technical field [0001] The invention relates to a compound herbicide for peanut fields, belonging to the field of pesticides. Background technique [0002] With the development of agricultural production and changes in farming systems, many changes have taken place in the occurrence of weeds in peanut fields. For example, the fertility and water conditions of farmland have generally improved, weeds have grown vigorously, and the damage has increased. Wheat is generally harvested by machines. There are many straws, which seriously affect the application effect of herbicides in peanut field soil treatment. Some peanut fields have implemented inter-row interplanting before wheat harvest. In this case, weeds should be sprayed in time during the 2 to 4 leaf stage of the weeds, otherwise the yield and quality of peanuts will be seriously affected. Most of the existing peanut field herbicides have problems such as narrow weed-killing spectrum and unsatisfactory weed control effect. For ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N31/14A01N35/06A01P13/00
Inventor 高宗军李美高兴祥郭晓崔海兰张宏军
Owner INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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