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Weeding composition

A herbicidal composition and composition technology, applied in the direction of herbicides, algicides, biocides, animal repellents, etc., to achieve the effects of expanding the weeding spectrum, improving the control effect, and prolonging the service life

Inactive Publication Date: 2012-02-01
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the shortcomings of the single use of the above-mentioned herbicides, to provide a herbicidal composition with high efficiency, low toxicity, low cost, good quick-acting, and long-lasting effect, which is beneficial to the comprehensive management of annual weeds in paddy fields

Method used

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  • Weeding composition
  • Weeding composition
  • Weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 (10% oxadifen·Penoxsulam·Pyrimsulfuron oil suspension concentrate).

[0033] Oxfentrazone 6%, Penoxsulam 2%, Pyrimsulfuron 2%, Phenol polyoxyethylene ether 5%, Sodium lignosulfonate 8%, Epoxy soybean oil 5%, Organic bentonite 5%, the rest is refined soybean oil and add to 100%.

[0034] Add the above-mentioned materials (except organic bentonite) to the reactor mixer, stir for 2 hours, open the feed valve at the bottom of the kettle, and inject the materials into the multi-stage sand mill for grinding. The fineness of the ground materials is 98% through 1- After 5um, the material is discharged, and the material is put into the high-shear emulsification kettle together with the organic bentonite dissolved in advance. After emulsification, it can be made into 10% oxadifen·Penoxsulam·pyrimethamine with good flowability. Susulfuron oil suspension agent. See the specific process figure 1 .

[0035] This example is used to control annual weeds in direct-seeded rice fie...

Embodiment 2

[0038] Example 2 (45% oxfentrazone·Penoxsulam·Pyrimsulfuron-methyl water dispersible granules).

[0039] Oxfentrazone 30%, Penoxsulam 8%, Pyrimsulfuron 7%, Sodium Lauryl Sulfate 4%, Polycarboxylic Acids 5%, Urea 40%, and the rest is kaolin to 100% .

[0040] Add the above-mentioned materials to the cone mixer and mix them evenly, and then pulverize by the jet mill. The pulverized materials are then mixed by the cone mixer. The fineness of the mixed material is 98% through the 325 mesh standard sieve and added to the kneader. Kneaded into plastic materials, and finally put the materials into an extrusion granulator to extrude and granulate. After granulation, they were dried and sieved to obtain 45% oxadifen·Penoxsulam·Pyramsulfuron Long water dispersible granules. See the specific process figure 2 .

[0041] This example is used to control annual weeds in rice seedling throwing fields: the experiment was carried out in rice throwing seedling fields with more cedar, barnyardgrass...

Embodiment 3

[0044] Example 3 (25% oxfentrazone, penoxsulam, pyrazosulfuron-methyl wettable powder).

[0045] Oxfentrazone 16%, Penoxsulam 5%, Pyrimsulfuron 4%, Sodium Lauryl Sulfate 2%,

[0046] Sodium butyl naphthalene sulfonate 3%, calcium lignosulfonate 5%, white carbon black 5%, and the rest is kaolin to 100%.

[0047] Add the above materials to the cone mixer and mix them evenly, and then pulverize by the jet mill. The pulverized materials are then mixed by the cone mixer. The fineness of the mixed materials is 98% and passes through the 325 mesh standard sieve, which is 25%. Oxfentrazone, Penoxsulam, Pyrimsulfuron-methyl WP. See the specific process image 3 .

[0048] This example is used to control annual weeds in rice seedling throwing fields: the experiment was carried out on rice transplanting fields with more cedar, barnyardgrass and broadleaf weeds. There were 5 treatments in the experiment, and treatment 1 was 25% oxazole grass. Amine·Penoxsulam·Pyrimsulfuron-methyl wettable powd...

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Abstract

The invention relates to a weeding composition, the active ingredients of which are metamifop, penoxsulam and pyrazosulfuronethyl. The weeding composition has the advantages that: after the metamifop, the penoxsulam and the pyrazosulfuronethyl are blended, the weeding effect is enhanced, the weed control spectrum is broadened, toxicity and residue are low, moreover, the dosage, the application frequency and the use cost are evidently reduced, the effect of the composition is much higher than the effect of each single agent, and the weeding composition is a better novel composition agent for controlling annual weeds in paddy fields so far.

Description

technical field [0001] The invention belongs to the technical field of pesticide weeding, and in particular relates to a paddy field herbicidal composition with fenpyramid, penoxsulam and pyrazosulfuron-methyl as active ingredients, which is used for controlling annual weeds in paddy fields. Background technique [0002] As people's requirements for food safety and environmental protection continue to increase, the use of pesticides on crops that people rely on for survival has also attracted much attention. With the phase-out of highly toxic pesticides, new agents with high efficiency, low toxicity, safety and environmental friendliness are needed. At the same time, the long-term use of pesticides has made pests and weeds resistant to pesticides, and the requirements for control chemicals are getting higher and higher. This requires pesticide researchers to develop new efficient and safe agents to meet the control requirements. Since the development of pesticides in my cou...

Claims

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Application Information

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IPC IPC(8): A01P13/00A01N43/76A01N47/36A01N43/90
Inventor 刘鹏彭述明冷忠国陈佛祥
Owner GUANGDONG ZHONGXUN AGRI TECH
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