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Compound herbicide for paddy field and preparation process thereof

A herbicide and paddy field technology, applied in the direction of herbicides and algicides, chemicals for biological control, application, etc., can solve the problems of limited weeding range and unsatisfactory weeding effect, and achieve a wide range of weeding, Enhanced weed control effect and strong adsorption effect

Inactive Publication Date: 2020-02-28
李玉洁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the weeding effect of the existing herbicides for rice is not particularly ideal, and the weeding range is also relatively limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A compound herbicide for paddy fields, the raw materials of the herbicide include, in parts by weight: 20 parts of mixed medicament, 5 parts of bensulfuron-methyl, 3 parts of promethazine, 12 parts of butachlor, azone 8 parts, 6 parts of thioketone, 1.3 parts of disintegrant, 2.5 parts of binder, 0.9 parts of defoamer and 5 parts of auxiliary agent;

[0036] Wherein, the mixed medicine is formed by mixing penoxsulam, mesotrione and ethoxysulfuron-methyl according to the weight ratio of 2.8:5.0:2.5.

[0037] Described disintegrant selects sodium carboxymethyl starch for use.

[0038] The binder is selected from starch.

[0039] The defoamer is polydimethylsiloxane.

[0040] The preparation method of described auxiliary agent comprises the steps:

[0041] a. Add 3,4-epoxy-1-butene and vinyl tris(β-methoxyethoxy)silane into the reaction vessel according to the mass ratio of 1.0:1, and add an appropriate amount of organic solvent and catalyst to it , the gained is recor...

Embodiment 2

[0054] A compound herbicide for paddy fields, the raw materials of the herbicide include by weight parts: 18 parts of mixed medicament, 7 parts of bensulfuron-methyl, 5 parts of promethazine, 10 parts of butachlor, azone 9 parts, 5 parts of thioketone, 1.5 parts of disintegrant, 2.2 parts of binder, 1.0 part of defoamer and 4 parts of auxiliary agent;

[0055] Wherein, the mixed medicament is formed by mixing penoxsulam, mesotrione and ethoxysulfuron-methyl according to the weight ratio of 3.0:5.0:3.0.

[0056] The disintegrating agent is selected from dry starch.

[0057] The adhesive is dextrin.

[0058] The defoamer is emulsified silicone oil.

[0059] The preparation method of described auxiliary agent comprises the steps:

[0060] a. Add 3,4-epoxy-1-butene and vinyl tris(β-methoxyethoxy)silane into the reaction vessel according to the mass ratio of 1.2:1, and add an appropriate amount of organic solvent and catalyst to it , the gained is recorded as the mixed componen...

Embodiment 3

[0073] A kind of compound herbicide for paddy field, the raw material of described herbicide comprises in parts by weight: 25 parts of mixed agent, 8 parts of bensulfuron-methyl, 6 parts of promethazine, 15 parts of butachlor, azone 10 parts, 8 parts of thioketone, 1.7 parts of disintegrant, 2.8 parts of binder, 1.2 parts of defoamer and 7 parts of auxiliary agent;

[0074] Wherein, the mixed medicament is formed by mixing penoxsulam, mesotrione and ethoxysulfuron-methyl according to the weight ratio of 3.1:5.0:3.2.

[0075] The disintegrating agent is selected from dry starch.

[0076] The adhesive is polyvinyl alcohol.

[0077] The defoamer is polydimethylsiloxane.

[0078] The preparation method of described auxiliary agent comprises the steps:

[0079] a. Add 3,4-epoxy-1-butene and vinyl tris(β-methoxyethoxy)silane into the reaction vessel according to the mass ratio of 1.4:1, and add an appropriate amount of organic solvent and catalyst to it , the gained is recorded ...

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Abstract

The invention relates to the technical field of herbicide preparation, in particular to a compound herbicide for a paddy field and a preparation process of the compound herbicide. The raw material ofthe herbicide comprises the following components in parts by weight: 18-25 parts of a mixed agent formed by mixing penoxsulam, mesotrione and ethoxysulfuron according to the weight ratio of (2.8-3.2):5.0: (2.5-3.5), 5-10 parts of bensulfuron methyl, 3-7 parts of prometryn, 10-15 parts of butachlor, 8-12 parts of azone, 5-8 parts of thienone, 1.3-1.8 parts of a disintegrating agent, 2.2-2.8 partsof an adhesive, 0.9-1.4 parts of a defoaming agent and 4-7 parts of an auxiliary agent, compared with commercially available paddy field herbicides, the prepared herbicide has a better killing effecton annual gramineous weeds, broadleaf weeds and cyperus weeds in a paddy field, the effect is more remarkable, the weeding range is wider, and the herbicide has a very good market prospect; besides, the herbicide prepared by the invention can be directly sown into a rice field, and compared with a traditional spray application method, the herbicide prepared by the invention is more time-saving, labor-saving and labor-saving when being applied.

Description

technical field [0001] The invention relates to the technical field of herbicide preparation, in particular to a compound herbicide for paddy fields and a preparation process thereof. Background technique [0002] Herbicides refer to agents that can completely or selectively kill weeds, also known as herbicides, a class of substances used to eliminate or inhibit plant growth. Among them, sodium chlorate, borax, arsenate, and trichloroacetic acid have a deadly effect on any kind of plants, and their effects are affected by three factors: herbicides, plants, and environmental conditions. According to the function, it can be divided into killing and selective herbicides. Most of the selective herbicides, especially the derivatives of nitrophenol, chlorophenol and carbamic acid, are effective. The development of herbicides in the world is gradually stabilizing, mainly developing varieties with high efficiency, low toxicity, broad spectrum, and low dosage, and disposable treatme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N41/10A01N47/36A01N43/70A01N37/26A01N43/46A01N43/88A01N55/10A01P13/00C07F7/18
CPCA01N37/26A01N41/10A01N43/46A01N43/70A01N43/88A01N43/90A01N47/36A01N55/00C07F7/1892C07F7/1896
Inventor 李玉洁李冰清李多才
Owner 李玉洁
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