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Rice-field weeding composition and preparation thereof

A herbicide composition and herbicide technology, applied in the direction of herbicides, algicides, biocides, animal repellents, etc., can solve the problem that rimsulfuron-methyl is prone to resistance and the control effect cannot protect crops to the greatest extent Free from weeds and other problems, achieve the effects of delaying weed resistance, improving weed control efficiency, and reducing environmental pollution

Inactive Publication Date: 2012-12-12
LIANBAO CROP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] High-efficiency herbicides can better protect the growth of crops. Although pyrimsulfuron has a good effect on controlling weeds in paddy fields, its control effect cannot protect crops from weeds to the greatest extent. Anisulfuron-methyl is also prone to resistance like pyrazosulfuron-methyl and bensulfuron-methyl, so it is necessary to provide a new type of paddy field herbicide composition with higher control effect in order to better protect crops from paddy field weeds infringement

Method used

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  • Rice-field weeding composition and preparation thereof
  • Rice-field weeding composition and preparation thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: 20% rimsulfuron-fenthiazide wettable powder

[0025] Fluysulfuron-methyl 10%, Mefenacet 10%, EMPICOL LX / B 2.0%, DEHSCOFIX 920 3.0%, light calcium carbonate make up 100%, jet crushing, fully mixed, that is, 20% flunisulfuron-methyl · Benthiazamide wettable powder.

Embodiment 2

[0026] Example 2: 30% rimsulfuron-fenthiazide wettable powder

[0027] Fluidsulfuron-methyl 5%, Methiazamide 25%, Morwet EFW 1.2%, Morwet D-425 3.5%, kaolin to make up 100%, jet milling, fully mixed, that is, 30% Filflunsulfuron-fenthiazide Grass amine wettable powder.

Embodiment 3

[0028] Example 3: 40% rimsulfuron-fenthiazide wettable powder

[0029] Fluidsulfuron-methyl 3%, mefenamide 37%, NNO 7%, sodium lauryl sulfate 3%, kaolin make up 100%, jet milling, fully mixed, that is to get 40% flunisulfuron-benzene Dimethicon wettable powder.

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Abstract

The invention belongs to the field of pesticide preparation, and discloses a rice-field weeding composition. The rice-field weeding composition consists of orthosulfamuron and mefenacet. The invention also discloses a rice-field weedicide which consists of the weeding composition and an auxiliary material accepted by pesticide preparation, wherein the weight ratio of the weeding composition to the weedicide is 1-90%. By using the composition formed by mixing the orthosulfamuron and the mefenacet according to a certain proportion, the generation of pesticide resistance of weeds in a rice field is delayed, the dosage is reduced, most weeds in the rice field can be controlled, and particularly, worst weeds such as sagittaria trifolia, rhizome alismatis, sheathed monochoria herb and rice millet in the rice field can be controlled.

Description

technical field [0001] The invention relates to the field of pesticide preparations, in particular to a paddy field herbicidal composition and its preparation. Background technique [0002] Rice is an annual gramineous plant, which is produced on all continents except Antarctica. Rice is not only the most important food crop in my country, but also one of the main food crops in the world. The world's rice cultivation area is about 145 million hectares. The sown area of ​​rice in my country accounts for 1 / 4 of the country's grain crops. Regardless of planting area or output, rice ranks first among food crops in my country. However, rice fields in all rice-growing regions in my country have suffered from weed damage to varying degrees. Among them, the area of ​​moderate weed damage accounts for more than 46% of the total planting area of ​​rice, and the area of ​​severe weed damage accounts for more than 11.5%. These weeds compete with rice in various aspects and cause dama...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N43/78A01P13/00
Inventor 王洲卢桂鲜
Owner LIANBAO CROP TECH
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