Dazomet coated controlled-release granules

A granule, long-coated technology, used in biocides, fungicides, biocides, etc., can solve the problems of crop phytotoxicity, low active ingredients, reduce open air time, etc., and achieve a lasting and constant control effect.

Active Publication Date: 2013-01-16
LIANBAO CROP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

More importantly, after application, the granules or microparticles of Dianlong are greatly affected by soil temperature, humidity and soil structure, and their active ingredients will become lower and lower with time, and the control effect cannot be kept constant for a long time, so they cannot be effective. Long-term protection of crops against pathogens such as nematodes, pests or weeds
If the exposure time is artificially reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: 30% datamon coated controlled-release granules

[0040] In terms of weight percentage, take 30% of damelong technical material and 45% of kaolin, mix them uniformly, granulate in a granulator, and control the particle size to 0.5-2.0mm, and then dry and sieve the obtained granules.

[0041] The obtained particles are placed in a fluidized bed and blown into a fluidized state, and preheated so that the particles in the fluidized state are at 70°C. Then mix 15% cellulose and 7% rosin evenly, then add 3% ethyl acetate and mix thoroughly to form a coating solution, and use a delivery pump at a speed of 800mL / h to transport the coating solution to a pressure of 0.3 Mpa at the nozzle of the atomizer.

[0042] The atomized coating solution is sprayed onto the particles in a fluidized state, so that the coating solution and the pesticide particles are fully mixed, and the coating is evenly coated. The thickness of the coating is controlled at 0.1-0.5mm and kept f...

Embodiment 2

[0043] Embodiment 2: 45% datamon coated controlled-release granules

[0044] In terms of weight percentage, take 45% of the original drug of damaron and 30% of clay, mix evenly, and granulate in a granulator, the particle size is controlled at 0.5-2.0mm, and the obtained granules are dried and sieved.

[0045] The obtained particles are placed in a fluidized bed and blown into a fluidized state, and preheated so that the particles in the fluidized state are at 70°C. Then mix 10% polyvinyl acetal and 10% chlorinated paraffin evenly, then add 5% methyl ethyl ketone and mix thoroughly to form a coating solution, and use a delivery pump to transport the coating solution at a speed of 1200mL / h To the nozzle of the atomization device with a pressure of 0.5Mpa.

[0046] The atomized coating solution is sprayed onto the particles in a fluidized state, so that the coating solution and the pesticide particles are fully mixed, and the coating is evenly coated. The thickness of the coati...

Embodiment 3

[0047] Embodiment 3: 65% daniron coated controlled-release granules

[0048] In terms of weight percentage, take 65% of triamron technical substance and 20% of polyvinyl alcohol, mix them evenly, and granulate them in a granulator. The particle size is controlled at 0.5-2.0mm, and the obtained granules are dried and sieved.

[0049] The obtained particles are placed in a fluidized bed and blown into a fluidized state, and preheated so that the particles in the fluidized state are at 70°C. Then mix 8% polyvinyl alcohol urea phosphate and 5% sulfonated paraffin evenly, then add 2% acetone and mix thoroughly to form a coating solution, and use a delivery pump to transport the coating solution to At the nozzle of the atomization device with a pressure of 0.4Mpa.

[0050] The atomized coating solution is sprayed onto the particles in a fluidized state, so that the coating solution and the pesticide particles are fully mixed, and the coating is evenly coated. The thickness of the c...

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Abstract

The invention relates to the field of pesticides preparations and discloses dazomet coated controlled-release granules. The dazomet coated controlled-release granules comprise the following components in percentage by weight: 1-80% of dazomet, 1-70% of a carrier or a binder, 1-20% of a coating material, 1-10% of a film-forming aid, 0.5-5% of an organic solvent. The dazomet coated controlled-release granules are prepared form dazomet serving as an active ingrediment and selected proper film-forming aid, coating material, carrier, binder and the like, have long-lasting and constant prevention effect on nematodes and weeds, is superior to the existing dazomet pesticides, and can be used for effectively protecting crops from pathogenic bacteria, nematodes and weeds.

Description

technical field [0001] The invention relates to the field of pesticide preparations, in particular to a danoron-coated controlled-release granule. Background technique [0002] Methron is a low-toxicity broad-spectrum fumigation nematicide, which can also control soil fungi, underground pests and weeds. When applied in wet soil, it decomposes into toxic methyl isothiocyanate, formaldehyde and hydrogen sulfide in the soil, and quickly spreads to the soil particles, effectively killing various nematodes, pathogenic bacteria, underground pests and Germinated weed seeds, thus achieving the effect of cleaning the soil. Cottonon is not only easy to spread in the soil but also has a long duration of effect. It is suitable for controlling various nematodes on vegetables, strawberries, tobacco, fruit trees, and forest trees. [0003] In the agricultural field at the present stage, it is usually made into microparticles or granules, and then applied in furrows or spread, and the rot...

Claims

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Application Information

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IPC IPC(8): A01N43/88A01N25/12A01P5/00A01P3/00A01P13/00
Inventor 王洲卢桂鲜
Owner LIANBAO CROP TECH
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