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Herbicide and application thereof

A herbicide and dispersant technology, applied in the field of pesticides, can solve the problems of poor herbicide effect, poor control effect of unearthed weeds, etc., and achieves long-term maintenance of medicinal properties, independent of weather conditions, compatibility and safety. high effect

Inactive Publication Date: 2015-03-11
山东华亚环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Herbicides currently used in corn and sugar beets are ineffective, especially against unemerged weeds

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A herbicide of the present invention is a water-dispersible granule, containing by weight: 10 parts of isoxaflutole, 60 parts of propargyl oxadiazone, 12 parts of fatty acid polyoxyethylene ester, dodecylbenzenesulfonic acid Calcium 5 parts, urea 4 parts, white carbon black 35 parts.

[0032] The preparation method is as follows: uniformly mix isoxaflutole, propargyl oxadiazone, dispersant, wetting agent, disintegrating agent and filler, pulverize with ultra-fine jet mill, knead, and then add fluidized bed to granulate Granulating, drying and sieving are carried out in a drier to obtain water-dispersible granules of the fungicidal composition.

[0033] The herbicide is used before the seedlings of the corn field, and the dosage is 550 g active ingredient / ha.

[0034] The control rate of weeds in cornfields is 98.69%.

Embodiment 2

[0036] A herbicide of the present invention is a water-dispersible granule, containing by weight: 10 parts of isoxaflutole, 50 parts of propargyl oxadiazone, 15 parts of lignin sulfonate, 7 parts of alkyl naphthalene sulfonate 6 parts, 6 parts of aluminum chloride, 50 parts of light calcium carbonate.

[0037] The preparation method is as follows: uniformly mix isoxaflutole, propargyl oxadiazone, dispersant, wetting agent, disintegrating agent and filler, pulverize with ultra-fine jet mill, knead, and then add fluidized bed to granulate Granulating, drying and sieving are carried out in a drier to obtain water-dispersible granules of the fungicidal composition.

[0038] The herbicide is used before the seedlings of the sugar beet field, and the dosage is 600 grams of active ingredient / ha.

[0039] The control rate of weeds in cornfields is 97.8%.

Embodiment 3

[0041] A herbicide of the present invention and its application are water-dispersible granules, containing by weight: 8 parts of isoxaflutole, 64 parts of propargyl oxadiazone, 20 parts of fatty acid polyoxyethylene ester, lauryl 8 parts of sodium sulfate, 4 parts of ammonium sulfate, 45 parts of bentonite.

[0042] The preparation method is as follows: uniformly mix isoxaflutole, propargyl oxadiazone, dispersant, wetting agent, disintegrating agent and filler, pulverize with ultra-fine jet mill, knead, and then add fluidized bed to granulate Granulating, drying and sieving are carried out in a drier to obtain water-dispersible granules of the fungicidal composition.

[0043] The herbicide is used after the seedlings of the corn field, and the dosage is 400 g active ingredient / ha.

[0044] The control rate of weeds in cornfields was 96.4%.

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PUM

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Abstract

The invention relates to the field of agricultural chemicals, and specifically relates to a herbicide and an application thereof. In the herbicide, effective active components isoxaflutole and oxadiargyl are complexed with no conflict. The herbicidal spectrum of the herbicide is broad. With the herbicide, most annual and perennial weeds can be controlled. Post-emergence weeds can be effectively killed, and pre-emergence weeds can be controlled, such that the herbicidal effect is improved. The effective components in the herbicide are complexed, and provide a good synergistic effect within a certain range. The controlling effect of the herbicide is higher than that of single doses, and potency maintenance time is long. The herbicide has flexible application periods, and is suitable for both pre-emergence and post-emergence applications.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a herbicide and its application. Background technique [0002] Isoxaflutole, , the pure product is off-white or light yellow solid; melting point 140°C; density 1.590 (20°C); vapor pressure 1×10- 5Pa (25°C). Partition coefficient LogP=2.32; solubility in water is 6.2 mg / l (pH 5.5 20°C); stable to light, no decomposition occurs when heated and stored at 54°C for 14 days, half-life in aqueous solution of pH 1 is 1 day. [0003] Acute oral LD50 for rats: >5000mg / kg; acute percutaneous LD50 for rabbits: >2000mg / kg; This product is slightly irritating to rabbit eyes, but not irritating to rabbit skin. Rat acute inhalation LC50 (4 hours): >5.3mg / l. Duck and quail acute oral LD50 (14 days): >2150mg / kg. No mutagenicity, no teratogenicity. [0004] Its function is characterized by broad-spectrum herbicidal activity, can be used both before and after emerge...

Claims

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Application Information

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IPC IPC(8): A01N43/824A01N25/14A01P13/00A01N43/80
Inventor 牟军平朱娜刘晓于春光
Owner 山东华亚环保科技有限公司