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Quizalofop-p-ethyl containing water dispersible granule and preparation method thereof

A technology of quizalofop-p-ethyl and dispersible granules, which is applied in botany equipment and methods, biocides, biocides, etc., can solve the problems of 60% WG poor efficacy and unsatisfactory use effect, and achieve dispersibility and stability Good performance, reduced Gibbs free energy, fast disintegration

Inactive Publication Date: 2017-01-11
JIANGSU FENGSHAN GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] From the field tests of the above two WG products, the use effect of the existing two water-dispersible granules is not ideal, and the efficacy of 60% WG is relatively worse. Therefore, how to improve the quality of quizalofop-p-ethyl water-dispersible granules The efficacy of the drug is also a major difficulty at present

Method used

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  • Quizalofop-p-ethyl containing water dispersible granule and preparation method thereof
  • Quizalofop-p-ethyl containing water dispersible granule and preparation method thereof
  • Quizalofop-p-ethyl containing water dispersible granule and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0040] Embodiment 1~6 each component content is as shown in table 1~3, and the step of preparing quizalofop-p-ethyl water-dispersible granule is as follows (process flow chart sees figure 1 ):

[0041] 1) According to the content requirements of the components, quizalofop-p-p-p, dispersant, disintegrating agent, binder, synergist and filler are mixed evenly, and then pulverized by a jet mill to obtain a dry basis, wherein the dry The crushing fineness of the base is controlled as follows: the amount passing through the 45μm test sieve is ≥95%;

[0042] 2) The wetting agent and the defoaming agent are formulated into an aqueous solution to obtain a water base;

[0043] 3) Spray the water base through a nozzle onto the dry base placed on a fluidized bed for granulation. The whole process of granulation and drying is completed on the fluidized bed.

[0044] 4) The prepared granules are screened, tested and packaged to obtain the quizalofop-p-ethyl water-dispersible granules. ...

Embodiment 7

[0056] Embodiment 7 field efficacy test

[0057] Use the quizalofop-p-ethyl water-dispersible granules prepared in Examples 1 to 6, apply the drug according to the active ingredient dosage of 60 grams / hectare, repeat 4 times for each treatment, prevent and control the annual grass weeds in the cotton field, and investigate respectively after the application 15 days and 30 days strain control effect and fresh weight control effect, investigation result compares with contrast medicament 5% quizalofop-ethyl emulsifiable concentrate (commercially available), 20% quizalofop-p-ethyl water-dispersible granule (commercially available), the results see Table 5-7.

[0058] The annual gramineous weeds in the cotton experimental field were mainly crabgrass, foxtail, barnyardgrass and goosegrass. The experimental plots were randomly arranged, and the area of ​​each plot was 25 square meters.

[0059] The drug efficacy calculation method is as follows:

[0060] Plant control effect (%)=(...

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Abstract

The invention discloses a quizalofop-p-ethyl containing water dispersible granule and a preparation method thereof. The quizalofop-p-ethyl containing water dispersible granule is prepared from the following components in percent by weight: 5 to 20 percent of quizalofop-p-ethyl, 1 to 20 percent of a synergist, 0.5 to 3 percent of a wetting agent, 1 to 12 percent of a dispersing agent, 1 to 30 percent of a disintegrating agent, 0.1 to 5 percent of an adhesive, 0.1 to 5 percent of a defoaming agent and the balance of filler. By the adoption of a fluidized bed granulation process, the obtained quizalofop-p-ethyl containing water dispersible granule is high in dispersity and high in disintegrating speed; the suspension rate is above 90 percent; annual gramineous weeds in various broadleaf crop fields can be effectively prevented; furthermore, the product is high in heat stability; no organic solvent is used, and thus the product is little in environmental pollution and safe to a worker; and the use of the worker is facilitated to a larger extent.

Description

technical field [0001] The invention belongs to the field of agricultural herbicides, and in particular relates to a water-dispersible granule of quizalofop-p-ethyl and a preparation method thereof. Background technique [0002] Quizalofop-p-ethyl is an aryloxyphenoxycarboxylic acid herbicide developed by Nissan Chemical Industry Company of Japan. The mechanism of action is absorbed by the stems and leaves of weeds, conducts upwards and downwards in the plant body, and accumulates at the top and middle Meristem, inhibit the activity of acetyl-CoA carboxylase, thereby affecting the synthesis of fatty acids in cells, necrosis of weeds, chlorosis and yellowing of new leaves within 2 to 3 days after application, and stems and leaves other than new leaves after 4 to 7 days It also began to be necrotic, and the whole plant died after 10 to 14 days. [0003] Quizalofop-p-ethyl is a new type of highly selective herbicide for stem and foliage treatment in dry fields, safe for most b...

Claims

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Application Information

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IPC IPC(8): A01N43/60A01N25/14A01P13/00
CPCA01N43/60A01N25/14
Inventor 余建波王晋阳王海波缪永国李俊卿王波单永祥殷平殷凤山
Owner JIANGSU FENGSHAN GROUP
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