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Herbicide in paddy field

A herbicide and paddy field technology, applied in the field of pesticides, can solve the problems of incomplete weeds in paddy fields, easy to produce drug-resistant weeding, poor control effect, etc., and achieve the effect of expanding the herbicidal spectrum.

Active Publication Date: 2015-04-01
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that when the pesticide single agent is used alone in the prior art, it is easy to produce drug resistance to weeds in paddy fields, the weeding is not thorough, and the control effect is poor, and to provide a high-efficiency, broad-spectrum, economical, safe, effective Herbicidal composition beneficial to comprehensive management of weeds in paddy fields

Method used

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  • Herbicide in paddy field
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  • Herbicide in paddy field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: Indoor Toxicity Test of Penoxsulam, Cyhalofop-methyl, Fenoxaprop-P-P and Their Compounds Leptochloa chinensis and Agrostis matsumurae

[0036] According to the Colby method to evaluate the combination of herbicides (NY / T 1155.7-2006), the formula is as follows:

[0037] E 0 = A × B × C × · · · N 100 ( n - 1 )

[0038] In the formula:

[0039] A is the fresh weight inhibition rate of the target weeds when penoxsulam is used alone at a certain dose;

[0040] B is the fresh weight inhibition rate of target weeds when cyhalofop-ethyl is used alone at a certain dose;

[0041] C is the fresh weight inhi...

Embodiment 2

[0052] Example 2: 30% penoxsulam·cyhalofop-ethyl·fenoxaprop-ethyl water dispersible granules

[0053]

[0054] Put the above materials together into the conical mixer and mix them evenly, and then crush them through the jet mill, and then mix the crushed materials through the conical mixer. Knead into a plastic material, and finally put this material into an extrusion granulator to extrude and granulate. After granulation, it is dried and sieved to obtain 30% penoxsulam·cyhalofop-ethyl·oxazole Dipropen water dispersible granules.

Embodiment 3

[0055] Example 3: 29% penoxsulam·cyhalofop-ethyl·oxaprop-p-ethyl wettable powder

[0056]

[0057] 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 29% Penoxsulam · Cyhalofop-methyl · Fenoxaprop-P-P WP.

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Abstract

The invention relates to a herbicide in a paddy field. The herbicide comprises the following effective components: penoxsulam, cyhalofop-butyl and fenoxaprop-p-ethyl. The herbicide disclosed by the invention has synergistic effects; the preventing and killing effects on annual weeds in the paddy field are obviously superior to that of individual use of each single agent; the herbicide controlling spectrum is expanded; meanwhile, the use amount of the herbicide is reduced; the drug resistance of the weeds is delayed; and the pollution to the environment is relieved.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to a synergistic responsive pesticide composition with penoxsulam, cyhalofop-ethyl, and fenoxaprop-ethyl as active ingredients, which is mainly suitable for controlling annual weeds in paddy fields . Background technique [0002] Penoxsulam, a broad-spectrum herbicide for paddy fields, can effectively control barnyardgrass (including barnyardgrass resistant to propanil, quinclorac and acetyl-CoA carboxylase), annual sedge Grass family weeds, and effective for many broad-leaved weeds, such as Heterostachys marsh, carp sausage, field greens, bamboo knot flowers, bermudagrass, etc., the duration of effect is as long as 30 to 60 days, and the effect of one application is basically Control weed hazards throughout the season. At the same time, it can also control bensulfuron-methyl-resistant weeds in paddy fields, and has residual activity against many broad-leaved and sedge weeds an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01P13/00A01N43/76A01N39/04
Inventor 王礼文张志伟朱刚陈佛祥吴泽伟
Owner GUANGDONG ZHONGXUN AGRI TECH