Herbicide composition containing propisochlor and atrazine and preparation method thereof

A technology of promethachlor and herbicide, which is applied in the field of herbicide composition containing promethachlor and atrazine and its preparation, and can solve problems such as easy demulsification, creaming, and poor physical stability , to achieve good antifreeze effect, improve stability, and high content

Inactive Publication Date: 2015-10-21
天津市华宇农药有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because promethachlor is liquid and atrazine is solid, the best compound dosage form is suspoemulsion. Since the two herbicides are herbicides with large conventional dosage, in order to reduce environmental pollution and reduce the dosage of the preparation, it is hoped that the preparation The higher the content of SE, the better, but at the same time, due to the high viscosity of high-content SE (suspoemulsion preparation), the physical stability becomes poor, and problems such as demulsification and creaming are prone to occur, so it is difficult to prepare high-content suspoemulsion (SE) , the highest content currently registered in China is 52% Promethazolium Suspoemulsion

Method used

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  • Herbicide composition containing propisochlor and atrazine and preparation method thereof
  • Herbicide composition containing propisochlor and atrazine and preparation method thereof
  • Herbicide composition containing propisochlor and atrazine and preparation method thereof

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Embodiment 1

[0023] A herbicide composition containing promethachlor and atrazine, calculated by weight percentage, comprising:

[0024]

[0025] According to the requirements of the above formula, first mix propachlor and 2% polymer dispersant until uniform and transparent as the oil phase, and mix the rest of the ingredients with another 2% polymer dispersant, and grind them with a sand mill. When D90 is less than 5 When it is micron, it is the water phase, then slowly add the oil phase to the water phase and stir evenly, send it into the shearing kettle for shearing, and pass the test to make 58% propachlor and atrazine suspoemulsion, that is, 58% Promethazolium Atrazine Suspoemulsion.

[0026] experiment

[0027] The safety of the 58% promethachlor-atridine suspoemulsion prepared from the composition of the present invention is tested on the safety of corn and the control effect on corn annual weeds.

[0028] Test drug: 58% Promethazol-atrazine suspoemulsion;

[0029] Control age...

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PUM

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Abstract

The invention provides a polymeric dispersant which comprises a block polymer of methyl methacrylate, butyl acrylate and acrylamide. A herbicide composition which is prepared from the polymeric dispersant and contains propisochlor and atrazine and a preparation method thereof are provided. The herbicide composition comprises, by weight, 29% of the propisochlor, 29% of the atrazine, 4% of the polymeric dispersant, 4% of ethanediol, 0.2% of defoamer, 0.05% of xanthan gum, 0.1% of aluminium-magnesium silicate, 0.1% of sodium benzoate and the balance deionized water. The herbicide composition containing the propisochlor and the atrazine and the preparation method thereof have the advantages of being high in content and good in weeding effect.

Description

technical field [0001] The invention belongs to the field of herbicides, in particular to a herbicide composition containing propachlor and atrazine and a preparation method thereof. Background technique [0002] Corn is an important food crop, high-quality feed crop and important industrial raw material. Corn has strong adaptability, wide distribution, multiple uses, and great potential for increasing production. Its sown area and total output in the world are second only to rice and wheat, ranking third, and its development speed is very fast. The damage of weeds in corn field is an important factor affecting the yield of corn. Weeds have a well-developed root system, and the stem nodes crawling on the ground can also take root. They have strong absorption capacity and compete with corn crops for fertilizer, light, water, space and other necessary factors for plant growth. At the same time, the growth stage of weed seedlings is fast, the photosynthetic efficiency is high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/30A01N25/04A01N43/70A01P13/00A01N37/26
Inventor 乔利东赵小翠张世英贾震妹田金生董宝库寇俊杰
Owner 天津市华宇农药有限公司
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