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Weeding composition containing tebuthiuron and bromacil and applications of weeding composition

A herbicidal composition, tebuthiauron technology, applied in the field of pesticides, can solve the problems of increasing the chance of direct contact with pesticides, the low utilization rate of active ingredients, and increasing the danger of pesticide applicators, so as to facilitate popularization and application and promote the development of pastures. Effects of restoration and prolongation of service life

Active Publication Date: 2015-07-15
SHANDONG RUNBO BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, the dosage forms of terbuthiauron and webacil are mostly wettable powders and water-dispersible granules. These dosage forms need to be applied in the form of spraying. This method of application is labor-intensive, labor-intensive, and effective. The utilization rate of the ingredients is low, which increases the chance of direct contact between the agent and people, and increases the danger to the applicators

Method used

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  • Weeding composition containing tebuthiuron and bromacil and applications of weeding composition
  • Weeding composition containing tebuthiuron and bromacil and applications of weeding composition
  • Weeding composition containing tebuthiuron and bromacil and applications of weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1 20% terbuthiauron·Benzadine large granule

[0029]Tebuthiauron 10%, 10% webacid, dispersant polycarboxylate sodium salt 0.5%, calcium lignosulfonate 4.5%, wetting agent dialkyl succinate sulfonate sodium salt 0.5%, dodecyl Sodium alkyl sulfate 1.0%, binder sucrose 4%, dextrin 1%, cornstarch make up 100%.

[0030] The preparation method is as follows: after fully mixing the components evenly, carry out ultrafine airflow pulverization to obtain 750-mesh fine powder, then knead the obtained fine powder in a kneader with an appropriate amount of water, and then granulate through an extrusion granulator. Wet granules with a diameter of 3.0 mm were obtained, and dried in a fluidized bed at 70° C. to obtain 20% terbuthiauron·benzadin large granule.

Embodiment 2

[0031] Example 2 20% terbuthiauron·Benzadine large granule

[0032] The formula and preparation method of the large granule are the same as in Example 1, except that the diameter of the large granule is 2.0mm.

Embodiment 3

[0033] Example 3 20% terbuthiauron·Benzadine large granule

[0034] The formula and preparation method of the large granule are the same as in Example 1, except that the diameter of the large granule is 2.5mm.

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Abstract

The invention discloses a weeding composition containing tebuthiuron and bromacil and applications of the weeding composition. The composition takes tebuthiuron and bromacil in a mass ratio of (1-40): (1-40) as active ingredients. The weeding composition disclosed by the invention can be used for preventing and extirpating weeds in non-cultivation areas, or used for preventing and extirpating trees and shrubs in pastures and promoting the grassland instauration, and the prevention effect is significantly higher than that achieved by independently using tebuthiuron or bromacil. The weeding composition is prepared into large granules, so that the release rate of herbicide active ingredients can be controlled, the lasting period is long, the application amount of the composition is relatively reduced, and no crop toxicity of medicament is easily caused; for the large granules, the operation of adding the large granules into water for dissolving and diluting and then applying the obtained solution in the mist spray form is not need, and the large granules can be directly spread over the fields artificially or spread on the soil surface by using planes, thereby saving time and labor, and achieving an effect of convenience and rapidness; and the large granules are not attached on the stems and leaves of crops, so that the large granules are small in drift, have small pollution to the environment, and avoid herbicide hazards due to direct contact, therefore, the weeding composition is safe to the herbicide application personnel.

Description

technical field [0001] The invention relates to a herbicidal composition containing terbuthiauron and terbuthiuron and application thereof, in particular to a large-grain herbicidal composition containing terbuthiuron and terbuthiuron and an application thereof, and belongs to the technical field of pesticides. Background technique [0002] Tebuthiuron, English common name: Tebuthiuron, chemical name: N-(5-tert-butyl-1,3,4,-thiadiazol-2-yl)-N,N'-dimethylurea. Tebuthiauron is a white solid with a solubility of 2.5g / L in water (25°C). It is easily soluble in acetone, chloroform, methanol and other organic solvents. Hydrolysis of DT at .6 and pH 9 (25°C) 50 >64 days. Tebuthiauron is a systemic conduction type urea broad-spectrum herbicide and an inhibitor of photosynthesis. Tebuthiauron can be used to control trees and shrubs in pastures; or to control the growth of various plants in non-planted areas; or to selectively control gramineous and broad-leaved weeds in sugarca...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01P13/00A01N43/54
Inventor 孙国庆侯永生刘杰吴勇
Owner SHANDONG RUNBO BIOTECH CO LTD
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