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Weeding composition for wheat fields

A herbicidal composition and composition technology, applied in the field of pesticides, can solve problems such as long residual cycle, improper selection of drugs, and phytotoxicity, and achieve good control effect, wide weeding spectrum, and crop safety

Inactive Publication Date: 2010-03-17
HEFEI XINGYU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, the reasonable selection of herbicides in wheat fields has become an important technical link to ensure the safe production of wheat, but due to improper selection of herbicides or inadequate use of technology, the control effect is not ideal or the phenomenon of phytotoxicity occurs frequently.
At present, most of the herbicides used in wheat fields have a long residual period, which is not conducive to crop rotation and stubble, and will affect crops such as cotton and soybeans planted in the next crop, and some herbicides for soil treatment are greatly affected by soil moisture. ineffective, or even ineffective
Many of the radial herbicides currently used in wheat fields have better control effects on broad-leaved weeds, but poor control effects on gramineous weeds; Grass control is poor
Therefore, the cost of control is often increased while increasing the amount of pesticides applied.

Method used

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  • Weeding composition for wheat fields
  • Weeding composition for wheat fields
  • Weeding composition for wheat fields

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1. The weight ratio and preparation method of the components of 46% Mesosulfuron-Methazone oil suspension: Mesosulfuron-methyl 10kg, Metosulfuron-methyl 36kg, Methylcellulose 6kg, JFC 3kg, kaolin : 45kg, after mixing the above-mentioned components, use wet pulverization to make the average particle diameter below 5 μm, and just obtain 46% mesosulfuron-meflutrazone oil suspension.

[0012] 46% Mesotrione Metrazone Oil Suspension Drug Efficacy Report: Wheat 2-4 leaf stage, weed 2-5 leaf stage application, 30 days after the application, the control effect results of the investigated plants are as follows:

[0013]

[0014] The test results show that the herbicidal effect of the mixed use of mesosulfuron-methyl and mefentrazone is higher than that of any single agent in the components, which is beneficial to increase the efficacy of each other, and has no antagonistic effect.

Embodiment 2

[0015] Example 2. The weight ratio and preparation method of each component of 51% Methsulfuron-Fluoroxyacetic Acid Dry Suspension Concentrate: Methsulfuron-methyl 10kg, Fluoropyroxy acetic acid 41kg, Sodium Lignosulfonate 2kg, pull open powder BX 0.2kg, OP-15: 1.5kg, cellulose 0.01kg, white carbon black 4kg, water 41.29kg, after the above material liquid is prepared, go through wet ultrafine grinding, and then spray dry and granulate. 51% mesosulfuron-chlorfluroxyacetic acid dry suspension concentrate.

[0016] 51%% Mesosulfuron-fluroxypyr acetic acid dry suspension concentrate drug effect report: Wheat 2-4 leaf stage, weeds 2-5 leaf stage spraying, 30 days after the application, the control effect results of the investigated strains are as follows:

[0017]

[0018] The test results show that the herbicidal effect of mesosulfuron-chlorfluroxyacetic acid mixture is higher than that of any single agent in the components, which is beneficial to increase the efficacy of each ...

Embodiment 3

[0019] Example 3. The weight ratio and preparation method of the components of 18% Mesosulfuron-Thifensulfuron-methyl oil suspension concentrate: Mesosulfuron-methyl 17kg, Thifensulfuron-methyl 1kg, white carbon black, 4kg, agricultural milk 500 #8kg, methyl oleate 70kg, after above-mentioned composition is mixed, make average particle diameter below 5 μm with wet pulverization, just obtain oil suspension.

[0020] 18% Mesosulfuron-thifensulfuron-methyl oil suspension preparation drug effect report: Wheat 2-4 leaf stage, weeds 2-5 leaf stage spraying, 30 days after the application, the results of plant control effect are as follows:

[0021]

[0022] The test results show that the herbicidal effect of the mixed use of methylsulfuron-methyl and thifensulfuron-methyl is higher than that of any single agent in the components, which is beneficial to increase the efficacy of each other and expand the herbicidal spectrum.

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Abstract

The invention discloses a weeding composition for wheat fields, the active component of which is formed by any one combination of methyl-2-ethyl with fenoxaprop-p-ethyl, tribenuron, fluroxypyr, carfentrazone-ethyl or thifensulfuronmethyl herbicide by weight ratio of 1:50-20:1. The composition can be prepared into oil suspension agent, emulsifiable concentrate, wettable powder, dry suspension agentand the like in accordance with the known methods. The composition is characterized by high-efficient weeding effect, wide weeding spectral, less dosage, low residue, low cost, safety to the crops, and better control effect to the broadleaf weeds and grassy weeds, and can basically control the hazards of full season weeds in the wheat fields by the pesticide application once.

Description

Technical field: [0001] The invention relates to a herbicidal composition used in wheat fields and belongs to the technical field of pesticides. Background technique: [0002] Wheat is one of the main crops in our country. In recent years, the reasonable selection of herbicides in wheat fields has become an important technical link to ensure the safe production of wheat. However, due to improper selection of herbicides or inadequate use of technology, the control effect is not satisfactory or the phenomenon of phytotoxicity occurs frequently. At present, most of the herbicides used in wheat fields have a long residual period, which is not conducive to crop rotation and stubble, and will affect crops such as cotton and soybeans planted in the next crop, and some herbicides for soil treatment are greatly affected by soil moisture. ineffective, or even ineffective. Many of the radial herbicides currently used in wheat fields have better control effects on broad-leaved weeds, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/76A01N47/36A01N43/40A01N43/653A01P13/02
Inventor 赵邦斌何普泉丁云好刘兵
Owner HEFEI XINGYU CHEM
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