Weeding composition and preparation thereof

A herbicidal composition and herbicide technology, applied in the direction of herbicides, algicides, biocides, animal repellents, etc., can solve the problem of herbicidal activity rivalry, achieve less environmental pollution, improve weeding efficiency, and use costs low effect

Inactive Publication Date: 2019-05-28
许昌市建安区昌盛日化实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the herbicide is only formulated with natural raw materials, and its herbicidal activity is obviously not comparable to that of ch

Method used

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  • Weeding composition and preparation thereof
  • Weeding composition and preparation thereof
  • Weeding composition and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] Example 1 Determination of co-toxicity coefficient

[0101] In order to better understand the joint action and effect of the herbicide composition of the present invention on weeds, it is detected by the following method, specifically as follows:

[0102] Adopt co-toxicity coefficient method to evaluate the synergistic effect of herbicide composition provided by the invention and pharmaceutical preparation thereof: with the growth inhibition percentage or the fresh weight inhibition percentage (Y) of the natural logarithm of drug concentration (X) and drug to target weeds ) to find the regression equation, and calculate the EC50 value or EC90 value of the agent on weeds, and then find the co-toxicity coefficient. The co-toxicity coefficient was used to evaluate the joint effect of compound agents on weeds. The co-toxicity coefficient > 120 was indicated as synergistic effect, the co-toxicity coefficient between 80 and 120 was expressed as additive effect, and the co-tox...

Embodiment 2～52

[0134] Embodiment 2~52 herbicidal composition formulations

[0135] (1) EC

[0136] The formulation of emulsifiable cream is shown in Table 13.

[0137] Table 13 Cream formula (unit: kg)

[0138]

[0139] The preparation method is as follows: dissolve the corresponding active ingredients with an organic solvent under the condition of stirring, then add the corresponding emulsifier and stir until completely dissolved into a uniform transparent liquid, that is, the emulsifiable concentrate of the corresponding embodiment is obtained.

[0140] (2) Microemulsion

[0141] The microemulsion formulations are shown in Table 14.

[0142] Table 14 microemulsion formula (unit: kg)

[0143]

[0144]

[0145] The preparation method is: dissolve fluroxypyr, oxyfluorfen and quizalofop-p-ethyl (or high-efficiency flumeprop-p-p, fluazifop-p-p-p, quizalofop-p-p-ethyl) in an organic solvent, and then add emulsified Stir until the agent is completely dissolved into a uniform transpa...

Embodiment 53

[0181] Embodiment 53 drug efficacy test

[0182] Below the herbicide that above-mentioned embodiment 2~52 obtains is detected to the combined action effect of weeds, specifically as follows:

[0183] Get the herbicide composition that embodiment 2~52 obtains and test, test is carried out in a certain nursery in Zhengzhou, each group is treated 4 times and repeats, and the treatment area is 20m 2 ; and respectively with 200g / L fluroxypyr, 240g / L oxyfluorfen emulsifiable concentrate, 10% quizalofop-p-p-ethyl emulsifiable concentrate, 10% high-efficiency fluroxyfop-p-methyl emulsifiable concentrate, 150g / L fluroxyfop-p-p-ethyl concentrate EC, 7% quizofofuron-methyl EC, 10% pyrazosulfuron-methyl wettable powder, 10% bensulfuron-methyl wettable powder are control group 1, control group 2, control group 3, control group 4, control group 5, Control group 6, control group 7, and control group 8 were subjected to comparative experiments. Accurately weigh various chemicals according t...

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Abstract

The invention relates to the technical field of herbicides, in particular to a weeding composition and a preparation thereof. The weeding composition is prepared from three active components of A, B and C; A is fluroxypyr or fluroxypyr-mepthyl; B is any one of oxyfluorfen, pyrazosulfuron-ethyl and bensulfuron-methyl; C is any one of quizalofop-p-ethyl, haloxyfop-R-methyl, fluazifop P butyl and quizalofop-P-tefuryl; and the weight ratio of A to B to C is (0.1 to 90):(0.1 to 90):(0.1 to 90). According to the composition, the compounds A, B, and C are compounded, the cotoxicity coefficient is larger than 120, and the obvious synergy effect is shown; and the number of pesticide applying times can be decreased, the pesticide applying amount is decreased, the weeding labor and material costs arereduced, and the weeding composition is suitable for prevention and control of ground cover plants.

Description

technical field [0001] The invention relates to the technical field of herbicides, in particular to a herbicide composition and its preparation. Background technique [0002] Ground cover plants refer to those plants that are dense and low, and can be used to replace lawns to cover the ground, prevent soil erosion, absorb dust, purify air, reduce noise, eliminate pollution, and have certain ornamental and economic value after simple management. plant. It includes not only perennial low-growing herbaceous plants, but also some low-growing, creeping shrubs and vines with strong adaptability. Ground cover plants have a certain ornamental value. They are laid on large areas of bare flat land or sloping land, or are suitable for covering the ground in various environments such as wet forests and forest gaps, and are perennial herbs and low bushes with dense branches and leaves. Trailing shrubs and vines. Among them, Ophiopogon japonicus is a common greening ground cover plant ...

Claims

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Application Information

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IPC IPC(8): A01N43/60A01N43/40A01N47/36A01N33/22A01P13/00
Inventor 王玉雪胡俊敏郑洋崔黎艳朱艳芳张文文常金河李世奎郝勇锋秦伟王琪焦竹青蒋占民
Owner 许昌市建安区昌盛日化实业有限公司
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