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Herbicide used for paddy rice and application and preparation method thereof

A technology for paddy field and herbicide, which is applied in the directions of herbicides and algaecides, botanical equipment and methods, applications, etc., can solve the problems of difficult application of rice herbicides and high labor costs, and achieves improved herbicidal efficacy and convenient use. Effect

Active Publication Date: 2017-03-22
吕春雷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the increasing labor costs, most of the labor force in rural areas migrates to cities to work, so it is becoming more and more difficult to apply rice herbicides

Method used

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  • Herbicide used for paddy rice and application and preparation method thereof
  • Herbicide used for paddy rice and application and preparation method thereof
  • Herbicide used for paddy rice and application and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The active ingredient of the composition of this example is composed of two components, A and B, A is pretilachlor, B is propargyl oxadiazone, and the content of the herbicide active ingredient is 25.5%.

[0056] The composition and weight percentage of the composition are as follows: 25.0% of pretilachlor, 0.5% of propargyl clomazone, 5.0% of No. 150 solvent naphtha, 5.0% of calcium dodecylbenzenesulfonate, tristyrylphenol polyoxygen Vinyl ether 5.0%, polyvinyl alcohol 59.5%.

[0057] The steps and conditions of its preparation method are as follows:

[0058] (1) According to the ratio of raw materials, add components A, B and solvent oil into the stirring tank and stir for 30 minutes, and heat during the stirring process;

[0059] (2) After dissolving evenly, add emulsifier and continue to stir for 20 minutes;

[0060] (3) Add polyvinyl alcohol, heat to 90°C while stirring, and keep warm for 20 minutes.

[0061] (4) Pour the material into a metal container and cool...

Embodiment 2

[0066] The active ingredient of the composition of this example is composed of two components, A and B, A is pretilachlor, and B is saponin, and the active ingredient content of the herbicide composition is 12.75%.

[0067] The composition and weight percentages of the composition are as follows: 0.25% pretilachlor, 12.5% ​​saponin, 5.0% No. 150 solvent naphtha, 5.0% calcium dodecylbenzenesulfonate, tristyrylphenol polyoxyethylene ether 5.0%, gum 72.25%.

[0068] The steps and conditions of its preparation method are as follows:

[0069] (1) According to the ratio of raw materials, add components A, B and solvent oil into the stirring tank and stir for 30 minutes, and heat during the stirring process;

[0070] (2) After dissolving evenly, add emulsifier and continue to stir for 20 minutes;

[0071] (3) Add gum, heat to 90°C while stirring, and keep warm for 20 minutes;

[0072] (4) Pour the material into a metal container and cool down naturally. That is, the target produc...

Embodiment 3

[0077] The active ingredient of the composition of this example consists of two components, A and B, A is pretilachlor, B is oxyfluorfen and oxadiazone, and the active ingredient content of the herbicide composition is 17.0%.

[0078] The components and weight percentages of the composition are as follows: pretilachlor 8.0%, oxyfluorfen 5.0%, oxadiazone 4.0%, saponin 150 solvent oil 8.0%, calcium dodecylbenzenesulfonate 5.0%, tristyrylphenol polyoxyethylene ether 5.0%, polyethylene glycol 65.0%.

[0079] The steps and conditions of its preparation method are as follows:

[0080] (1) According to the ratio of raw materials, add components A, B and solvent oil into the stirring tank and stir for 30 minutes, and heat during the stirring process;

[0081] (2) After dissolving evenly, add emulsifier and continue to stir for 20 minutes;

[0082] (3) Add polyethylene glycol, heat to 90°C while stirring, and keep warm for 20 minutes;

[0083] (4) Pour the material into a metal cont...

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Abstract

The invention relates to the technical field of a herbicide, and especially relates to a herbicide used for paddy rice and an application and a preparation method thereof. The herbicide comprises a weeding active component, a solvent, an emulsifier and a filling material; the emulsifier is calcium dodecyl benzene sulfonate and / or tristyrylphenol polyoxyethylene ether; and the filling material is one or more selected from tristyrylphenol polyoxyethylene ether, polyvinyl alcohol, gum or polyethylene glycol. The herbicide is a wax, and is a novel dosage form, and can be directly used in the paddy rice while in use, emulsification, diffusion and uniform distribution of the herbicide in paddy rice, so that weeding effect is achieved. The herbicide has the advantages of convenient usage, labor saving and time saving. Compared with the other dosage form, the herbicide can obviously increase the weeding effectiveness of the active component, and can be used for preventing and treating annual gramineous weeds and broadleaf weeds in paddy field.

Description

technical field [0001] The invention relates to the technical field of herbicides, in particular to a paddy field herbicide and its application and preparation method. Background technique [0002] Rice is not only the most important food crop in my country, but also one of the main food crops in the world. Nearly half of the world's population, including almost all of East and Southeast Asia, eat rice. Production is on every continent except Antarctica. In the late last century, the average annual rice output in the world was about 400 billion kilograms, and the planting area was about 145 million hectares. The sown area of ​​rice in my country accounts for 1 / 4 of the national grain crops, about 35 million hectares per year, while the output accounts for more than half. Regardless of planting area and output, rice ranks first among my country's food crops. [0003] During rice production management, weeding is a major task. Weeds compete with rice for fertilizer and gl...

Claims

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Application Information

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IPC IPC(8): A01N25/34A01N25/30A01N25/10A01N37/22A01N43/824A01N57/14A01N33/22A01N43/70A01P13/00
CPCA01N25/10A01N25/30A01N25/34A01N33/22A01N37/22A01N43/70A01N43/82A01N57/14A01N2300/00
Inventor 吕春雷
Owner 吕春雷
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