Preparation method of high-efficient herbicides

A herbicide and high-efficiency technology, which is applied in the field of preparation of high-efficiency herbicides, can solve problems such as the decline of herbicide effect and the aggravation of weed-resistant weed community succession, and achieve good effect, good control effect, and good control effect

Inactive Publication Date: 2017-12-15
如皋市康利化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of decreasing weeding effect of herbicides in paddy fields and cotton fields, increasing weed resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A compound herbicide comprising the following components by mass fraction: 42% oxadiazone, 3% oxyfluorfen, 40% butachlor, 4% adjuvant, and 11% solvent.

[0027] Among them, the auxiliary agent is an emulsifier, and the emulsifier contains the following components by mass fraction (accounting for the total mass): 6031% of agricultural milk, 6041% of agricultural milk, and 2% of agricultural milk 500#2%; the solvent is xylene.

[0028] This embodiment also provides a preparation method of a compound herbicide, the preparation method comprising: preparing raw materials according to the above weight percentage, putting oxadiazone and oxyfluorfen technical materials into the preparation kettle, adding part of xylene, Dissolve it under stirring, then add butachlor, additives and the rest of xylene in sequence, and stir evenly to obtain an 85% emulsifiable concentrate product.

Embodiment 2

[0030] A compound herbicide comprising the following components by mass fraction: 22% oxadiazone, 30% oxyfluorfen, 10% butachlor, 17% adjuvant, and 21% solvent.

[0031] Among them, the auxiliary agent is 14% of emulsifier and 3% of dispersant. The emulsifier contains the following components in mass fraction (accounting for the total mass): Nongru 6065%, Nongru 500#5% and alkyl sodium sulfate 4%. The agent is polycarboxylate; the solvent is water.

[0032] This embodiment also provides a preparation method of a compound herbicide, the preparation method comprising: preparing raw materials according to the above weight percentage, passing oxadiazone, oxyfluorfen, polycarboxylate, alkyl sodium sulfate and water through After ball milling and sand milling, to obtain oxadiazone and oxyfluorfen suspending agent, add butachlor, Nongru 606 and Nongru 500# into the preparation kettle and stir evenly, then add oxadiazone and oxyfluorfen suspending agent Add the remaining amount of wa...

Embodiment 3

[0034] A compound herbicide comprising the following components by mass fraction: 8% oxadiazone, 20% oxyfluorfen, 10% butachlor, 10% adjuvant, and 52% solvent.

[0035] Among them, the auxiliary agent is an emulsifier, and the emulsifier contains the following components by mass fraction (accounting for the total mass): S-409%, T-806%, Nongru 6062% and Nongru 500#2%; the solvent is oleic acid formazan ester.

[0036] This embodiment also provides a preparation method of a compound herbicide, the preparation method comprising: preparing raw materials according to the above weight percentages, mixing oxadiazone, oxyfluorfen, S-40, T-80 and methyl oleate Obtain oxadiazone and oxyfluorfen oil suspension concentrate after ball milling and sand milling; add butachlor, Nongru 606 and Nongru 500# into the preparation kettle and stir evenly, then add oxadiazone and oxyfluorfen The oil suspension concentrate and the remaining amount of methyl oleate are added to the configuration kettl...

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PUM

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Abstract

The invention discloses a preparation method of a high-efficiency herbicide, which comprises the following components in mass fraction: oxadiazone 5%-60%, oxyfluorfen 3%-50%, butachlor 5%-70%, Auxiliary 1%-20%, solvent or carrier 5%-80%. The preparation method comprises: putting the oxadiazone and oxyfluorfen technical substances into a preparation kettle, adding a solvent, dissolving them in a stirring state, then adding butachlor, auxiliary agents and solvents in sequence, and stirring evenly. Get a cream product. The beneficial effects of the present invention are: oxadiazone, oxyfluorfen and butachlor belong to different types of herbicides with different action characteristics. After compounding, weeds are not easy to develop drug resistance, and they can complement each other to expand herbicide range, good control effect, especially for malignant weeds that are difficult to control, delaying and controlling the resistance of weeds and the succession of weed communities in the field; at the same time, the herbicide composition is safe for plants and subsequent crops .

Description

technical field [0001] The invention relates to a preparation method of a high-efficiency herbicide. Background technique [0002] At present, the main herbicides in rice fields are ethylbenzyl, butylbenzyl and dichlorobenzyl. Due to the long-term use of more and more resistant weeds, the crops have been greatly reduced; the herbicides in cotton fields are mostly soil treatment agents, mainly Acetochlor and trifluralin are the main ones. With the continuous use of acetochlor and trifluralin for a long time, more and more weeds are resistant to them. Since acetochlor is a selective herbicide, it leads to The number of sensitive weeds decreased significantly, while the number of insensitive weeds gradually increased, causing significant changes in the weed community. In view of the current severe situation, it is urgent to find a herbicide combination that is safe for rice and cotton and highly effective for weeds in production to replace conventional herbicides. Contents o...

Claims

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Application Information

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IPC IPC(8): A01N43/824A01N33/22A01N37/26A01P13/00
CPCA01N43/82A01N33/22A01N37/26
Inventor 程海霞
Owner 如皋市康利化工有限公司
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