Weeding composition for paddyfield

A herbicidal composition and paddy field technology, applied in the field of pesticides, can solve the problems of unsatisfactory control effect, inappropriate use of technology, narrow herbicidal spectrum, etc., and achieve good control effect, low cost, and wide weeding spectrum

Inactive Publication Date: 2009-12-09
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 rice fields has become an important technical link to ensure the safety of rice production. However, due to improper selection of herbicides or inadequate use of technology, the control effect is not satisfactory or the phenomenon

Method used

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  • Weeding composition for paddyfield
  • Weeding composition for paddyfield
  • Weeding composition for paddyfield

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1. The weight ratio and preparation method of the components of 45% mesotrione·bensulfuron-methyl wettable powder: 10% mesotrione, 35% bensulfuron-methyl, 5% methylcellulose, JFC 3%, Kaolin 47%. Put all the materials into the reaction kettle at one time, make them fully mixed under stirring conditions, crush and pour to a certain fineness.

[0012] 45% Mesotrione · Carsulfuron-methyl wettable powder drug efficacy report: rice 2-4 leaf stage, weeds 2-5 leaf stage application, 30 days after the application, the results of plant control effects are as follows:

[0013]

[0014] The test results show that the herbicidal effect of the mixed use of mesotrione and carsulfuron-methyl 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 the components of 33% mesotrione·pyrazosulfuron-methyl wettable powder: 9% mesotrione, 24% pyrazosulfuron-methyl, 6% methylcellulose, Sodium Lauryl Sulfate 4%, Kaolin 57%. Put each material into the reaction kettle at one time, make it fully mixed under stirring condition, and crush to a certain fineness.

[0016] 33% Mesotrione · Pyrazosulfuron-methyl wettable powder drug efficacy report: rice 2-4 leaf stage, weeds 2-5 leaf stage application, 30 days after the application, the results of plant control effects are as follows:

[0017]

[0018] The test results show that the herbicidal effect of the mixed use of mesotrione and pyrazosulfuron-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.

Embodiment 3

[0019] Example 3. The weight ratio and preparation method of each component of 15% mesotrione·cyhalofop-ethyl oil suspension concentrate: 5% mesotrione, 10% cyhalofop-methyl, 4% white carbon black, agricultural Milk 0408 10%, methyl oleate 71%. After the above components are mixed, wet pulverization is used to make the average particle size below 5 μm to obtain an oil suspension.

[0020] 15% Mesotrione·Cyhalofop-methyl oil suspension concentrate drug effect report: rice 2-4 leaf stage, weeds 2-5 leaf stage application, 30 days after the application, the plant control effect results are as follows:

[0021]

[0022]

[0023] The test results show that the herbicidal effect of the mixture of mesotrione and cyhalofop-ethyl 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 a paddyfield. The weeding composition is prepared by combining a sodium sulcotrione weedicide as an active ingredient and any one or more of a cyhalofop-butyl weedicide, a bensulfuron methyl weedicide, a pyrazosulfuron-ethyl weedicide, a quinclorac weedicide, a mefenacet weedicide, a bispyribac-sodium weedicide or a penoxsulam weedicide; and the weight ratio of two materials is 1:40-70:1. The composition can be made into oil deflocculant, missible oil, wettable powder, water dispersible granule and the like according to a well-known method. The weeding composition has the characteristics of high-efficient weeding effect, wide weed spectrum, little use amount, low residue, safety to crop, low cost and good prevention and control effect on broadleaf weed and grassy weed; and the weeding composition is applied for one time and can basically control the harm of weeds of the paddyfield in whole season.

Description

Technical field: [0001] The invention relates to a herbicidal composition used in paddy fields and belongs to the technical field of pesticides. Background technique: [0002] Rice is one of the main crops in my country. With the continuous expansion of its planting area, rice field weed damage is also increasing day by day in the continuous expansion of production, and the damage is becoming more and more serious. Whether the weed damage in rice can be effectively controlled and the high yield of rice can be stabilized? It has also become one of the main topics of modern agricultural herbicide research. Therefore, drug farmers need to choose a herbicide that is highly efficient, highly safe for rice and cheap. In recent years, the rational selection of herbicides in rice fields has become an important technical link to ensure the safety of rice production. However, due to improper selection of herbicides or inadequate use of technology, unsatisfactory control effects or phy...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01N41/10A01N39/04A01N43/42A01N43/78A01N43/54A01N43/90A01P13/00
Inventor 赵邦斌丁云好姚海波许君鲍恩付洪鹏达
Owner HEFEI XINGYU CHEM
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