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Herbicide for rice transplanting field

A herbicide and rice technology, applied in the directions of herbicides and algaecides, biocides, biocides, etc., can solve problems such as the decline of growth effect, reduce the usage amount, improve the control effect, and have good environmental compatibility Effect

Inactive Publication Date: 2014-12-24
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Weeds are sensitive to the drug from germination to 2-3 leaf stage, and the best effect is applied at the germination stage of weeds, and the effect decreases with the growth of weeds

Method used

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  • Herbicide for rice transplanting field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Preparation Method Example 1: 25% penoxsulam·oxyfluorfen·propargyl oxadiazone wettable powder.

[0033] Penoxsulam 5%, oxyfluorfen 10%, propargyl clomazone 10%, sodium lauryl sulfate 8.2%, alkylphenol polyoxyethylene ether sulfate 6.2%, NNO3.4%, Kaolin makes up 100%. The above materials are mixed, mechanically pulverized, then airflow pulverized, and mixed uniformly to obtain 25% penoxsulam·ethoxyfluorfen·propargyl oxadiazone wettable powder.

Embodiment 2

[0034] Preparation method example 2: 20% penoxsulam·oxyfluorfen-propargyl oxadiazone oil suspension concentrate.

[0035] Penoxsulam 5%, Oxyfluorfen 5%, Propyroxymazone 10%, Fatty Acid Ester Sulfate 6.5%, Sodium Dodecyl Benzene Sulfonate 9.3%, Hydroxymethyl Cellulose 3.2% , Silicone 3%, Water Make Up 100%. After the above-mentioned materials are dispersed by high-speed shearing and sand-milled in a sand mill, a highly dispersed and stable suspension system is formed in a non-aqueous medium, and 20% penoxsulam·oxyfluorfen· propargyl oxadiazone oil suspension.

Embodiment 3

[0036] Preparation Method Example 3: Preparation method of 2% penoxsulam·oxyfluorfen·mesotrione granules.

[0037] Penoxsulam 1%, Oxyfluorfen 0.5%, Mesotrione 0.5%, Sodium Alkane Sulfonate 6.7%, Polycarboxylate 9%, Starch Dextrin 20%, Clay to 100%. The above active ingredients and additives are mixed and kneaded with water, extruded and shaped by an extrusion granulator, and then the granules are dried and sieved in a fluidized bed to obtain 2% penoxsulam·ethoxylate Fluoxyfen · Mesotrione Granules.

[0038] Field efficacy test embodiment 1.

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Abstract

The invention discloses a herbicide for a rice transplanting field. The herbicide comprises three effective ingredients of an effective ingredient a, an effective ingredient b and an effective ingredient c, wherein the effective ingredient a is penoxsulam, the effective ingredient b is oxyfluorfen, the effective ingredient c is one of mesotrione and oxadiargyl; the herbicide particularly comprises the following ingredients of 1-20 percent of the effective ingredient a, 1-20 percent of the effective ingredient b, 1-20 percent of the effective ingredient and the balance being auxiliary ingredients which are allowed to be used and can be accepted in a pesticide. The herbicide is used for preventing and removing annual weeds in the rice transplanting field; the preventing and controlling effect of the herbicide is remarkably improved in comparison with that of single preparations, the herbicide controlling spectrum is enlarged, the pesticide consumption is reduced, the adverse effect of the pesticide on the ecological environment is reduced; the herbicide has the important significance of comprehensively treating the resistance of the weeds.

Description

technical field [0001] The invention relates to pesticide herbicides and application fields thereof, in particular to a herbicide used for controlling annual weeds in transplanted rice fields. Background technique [0002] Chemical weed control is one of the main means of weed control in paddy fields, and the use of a single compound herbicide can easily lead to weed resistance. At the same time, when weeds occur in paddy fields, the grass phase is complex, grass weeds, broad-leaved weeds and other types of weeds are mixed, and the use of a single type of compound herbicide will show some defects and limitations, and cannot be completely eliminated. Eliminate weeds in farmland. The combination of different types of compound herbicides can expand the herbicidal spectrum, improve the actual effect, delay weed resistance, and save time and labor. [0003] Penoxsulam is a sulfonylurea compound that is absorbed through the leaves, sheaths or roots of weeds and transmitted to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01P13/00A01N41/10A01N33/22A01N43/824
Inventor 陈佛祥张志伟王礼文朱刚吴泽伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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