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Corn field weeding composition

A herbicidal composition and technology for cornfields, applied in the field of pesticides, can solve the problems of weeds in cornfields prone to drug resistance and control effects, and achieve the effect of expanding the herbicidal spectrum

Inactive Publication Date: 2015-07-15
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems in the prior art that when a single pesticide is used alone, it is easy to produce resistance to weeds in cornfields and the actual control effect is poor, and to provide a high-efficiency, broad-spectrum, economical, safe, beneficial to cornfield weeds. Herbicidal composition for integrated weed management

Method used

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  • Corn field weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Biological Assay Example 1: Indoor Toxicity Test of Clopyrazosulfuron-methyl, Amaminopyralic Acid, Thiensulfuron-methyl and Their Compounds on Celosia argentea and Cirsium setosum

[0016] According to the Colby method to evaluate the combination of herbicides (NY / T 1155.7-2006), the formula is as follows:

[0017] E 0 = A × B × C × . . . N 100 ( n - 1 )

[0018] In the formula:

[0019] A is the fresh weight inhibition rate of target weeds when chlorpyrazosulfuron-methyl is used alone at a certain dose;

[0020] B is the fresh weight inhibition rate of target weeds when aminopyralid is used alone at a certai...

Embodiment 2

[0035] Preparation method example 2: 30% clopyrazosulfuron-aminopyralid potassium salt·thiazosulfuron-methyl wettable powder.

[0036]

[0037] Add the above materials together into a conical mixer and mix them evenly, then pulverize them through a jet mill, and then mix the pulverized materials through a conical mixer. The fineness of the mixed materials is 98% and passes through a 600-mesh standard sieve to obtain 30% Clopyrazosulfuron · Ampicillin Potassium Salt · Thiosulfuron-methyl wettable powder.

Embodiment 3

[0038] Preparation method example 3: 20% chlorpyrazosulfuron-methyl ammonium salt·thiazosulfuron-methyl suspension concentrate.

[0039]

[0040] The above formula is pre-crushed according to the proportion, then added to a sand mill for grinding, and then prepared after high-shear mixing to obtain 20% chlorpyrazosulfuron-aminopyralid ammonium salt-thietonsulfuron-methyl suspension concentrate.

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Abstract

The invention discloses a corn field weeding composition. Effective components comprise halosulfuron-methyl, aminopyralid (salt compounds thereof) and thiencarbazone-methyl, wherein the weight percent of halosulfuron-methyl in the composition is 0.1%-10%, the weight percent of aminopyralid (salt compounds thereof) in the composition is 0.1%-40%, and the weight percent of thiencarbazone-methyl in the composition is 0.1%-10%. The weeding composition has a remarkable synergistic interaction effect; the effect of preventing and removing annual weeds in a corn field is obviously better than the effect of a single dosage, and the use amount of the effective components of the composition is obviously reduced when being compared with the effect of using the single component; and the weeding spectrum is expanded, the production of weed drug resistance is delayed and the pollution to the environment is alleviated.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to a synergistic response herbicidal composition with clopyrazosulfuron-methyl, aminopyralid (or its salt compound) and thionsulfuron-methyl as active ingredients, which is suitable for controlling Annual weeds in cornfields. Background technique [0002] Clopyrazosulfuron-methyl is a sulfonylurea systemic agricultural compound, which can be absorbed by the stems, leaves and roots of plants. Weeds stop growing first and then die. It is mainly used to control annual broad-leaved weeds and Cyperaceae weeds. Rhizoma Cyperus has special effects. [0003] Aminopyralid, a new type of pyridine carboxylic herbicide, is mainly used to control annual and perennial broad-leaved weeds, and is widely used in the control of weeds in mountains, grasslands, plantations and non-cultivated land. Potassium, sodium hydroxide, ammonia and other reactions can also get the corresponding salt. [000...

Claims

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Application Information

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IPC IPC(8): A01N47/38A01P13/00A01N47/36A01N43/40
Inventor 王礼文冷忠国陈佛祥朱刚张志伟吴泽伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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