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Herbicide composite used in paddy field

A herbicide and composition technology, applied in the direction of herbicides and algicides, chemicals for biological control, applications, etc., can solve the problem of narrow herbicide spectrum, grass weeds and broad-leaved weeds and sedge At the same time, it can play a very good role in grass weeds and other problems, and achieve the effect of broad spectrum of herbicide, good control effect and high weed control effect

Active Publication Date: 2011-07-06
FMC CHINA INVESTMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the herbicides used in paddy fields have a narrow herbicidal spectrum, and cannot play a very good role on grass weeds, broad-leaved weeds and sedge weeds in the field at the same time. Generally, farmers need to apply twice or even three times. In order to achieve the ideal control effect, the paddy field herbicide composition we found can effectively control a variety of grass weeds (special effects on barnyardgrass, stephenia and crabgrass) and broad-leaved weeds at one time. grass and sedge

Method used

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  • Herbicide composite used in paddy field
  • Herbicide composite used in paddy field
  • Herbicide composite used in paddy field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The weight ratio and preparation method of each component of 30% fentrafen-bendazone suspension concentrate (5% fenpyramid, 25% bentazone):

[0013] 5% Mefenpyramid, 25% bentazone, 5% glycerol, 3% sodium lignosulfonate, 3% sodium alkylnaphthalene sulfonate (purchased from Nanjing Taihua Chemical Co., Ltd.), methyl Cellulose 5%, deionized water to make up to 100%. Add each component into the stirring tank at one time and stir evenly, and grind to a certain fineness with a sand mill after drying.

[0014] See Table 1 for the drug efficacy report of 30% fenpyramid-bendasone suspension concentrate. In an embodiment, the plant control effect is carried out in the following manner: drug effect (strain control effect)=[control area (strain)-treatment area (strain)] / control area (strain)

[0015] Table 1: Apply pesticides at the 2nd to 6th leaf stage of barnyardgrass and other gramineous weeds, and investigate the plant control effect 20 days after the application

[0016] ...

Embodiment 2

[0019] The weight ratio and preparation method of each component of 16% fenpyramid·bendazone suspension concentrate (1% fenpyramid, 15% bentazone):

[0020] Methazone 1%, bentazone 15%, glycerol 5%, lignosulfonic acid sodium salt 3%, alkylnaphthalene sodium sulfonate 3% (purchased from Nanjing Taihua Chemical Co., Ltd.), methyl Cellulose 5%, deionized water to make up to 100%. Add each component into the stirring tank at one time, stir evenly, and grind with a sand mill after drying.

[0021] See Table 2 for the drug efficacy report of 16% fenpyramid-bendasone suspension concentrate.

[0022] Table 2: Apply pesticides at the 2nd to 6th leaf stage of barnyardgrass and other gramineous weeds, and investigate the plant control effect 20 days after the application

[0023]

[0024] The test results show that the herbicidal effect of fenpyramid and bentazone mixed is higher than that of their respective single herbicides. The herbicide composition is beneficial to increase th...

Embodiment 3

[0026] The weight ratio and preparation method of each component of 16% fenpyramid·bendazone suspension concentrate (15% fenpyramid, 1% bentazone):

[0027] Methazone 15%, Bentasone 1%, Glycerol 5%, Sodium Lignosulfonate 3%, Sodium Alkyl Naphthalene Sulfonate 3% (purchased from Nanjing Taihua Chemical Co., Ltd.), methyl Cellulose 5%, deionized water to make up to 100%. Add the above-mentioned components into the stirring tank at one time, stir evenly, and grind with a sand mill after drying.

[0028] See Table 3 for the drug efficacy report of the 16% fenpyramid-bendasone suspension concentrate.

[0029] Table 3: Apply pesticides at the 2nd to 6th leaf stage of barnyardgrass and other gramineous weeds, and investigate the plant control effect 20 days after the application:

[0030]

[0031] The test results show that the herbicidal effect of fenpyramid and bentazone mixed is higher than that of their respective single herbicides. The herbicide composition is beneficial t...

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Abstract

The invention relates to a herbicide composite used in a paddy field. The active ingredient of the composite is formed by one or two of metamifop, bensulfuron-methyl, pyrazosulfuron, quinclorac, bentazone, bispyribac-sodium, 2-methyl-4-chloro-phenoxyacetic acid, penoxsulam and imidazolinone herbicides so as to form a binary herbicide composite or a ternary herbicide composite. The herbicide composite used in the paddy field can effectively remove various weeds in grass family, broad leaf weeds and cyperaceae weeds in the paddy field in a disposable way, and has special effects on cockspur grasses, moleplant seeds, crabgrass and the like which are difficult to be prevented in the directly-sown paddy fields.

Description

technical field [0001] The invention relates to a herbicide composition used in paddy fields. The composition can effectively control various grass weeds, broad-leaved weeds and sedge weeds in paddy fields at one time. Grass, Qianjinzi and crabgrass have special effects. technical background [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 expanding production, and the damage is becoming more and more serious. Whether it can effectively control the rice field weed damage and stabilize the high yield of rice has become an important issue. One of the main subjects of modern agricultural herbicide research. At present, most of the herbicides used in paddy fields have a narrow herbicidal spectrum, and cannot play a very good role on grass weeds, broad-leaved weeds and sedge weeds in the field at the same time. Generally, farmers need to apply twice or even three t...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01N43/88A01N43/76A01N43/653A01N43/54A01N43/42A01P13/00
Inventor 胡可王厚文宋德明沈新华程渊
Owner FMC CHINA INVESTMENT
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