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A kind of water emulsion of pendimethalin and uniconazole bud suppression

A pendimethalin and water emulsion technology, applied in biocides, animal repellents, plant growth regulators, etc., can solve the problems of high surface tension, easy-to-damage tobacco plants, contact infection of tobacco mosaic virus disease, etc.

Active Publication Date: 2017-03-22
四川百事东旺生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manual pruning is not only labor-intensive, time-consuming, easy to damage tobacco plants, and contagious tobacco mosaic virus disease, but also quickly germinates new axillary buds after pruning, thereby absorbing a large amount of nutrients
[0005] The prior art (200910086313.2, which is also the applicant's own early product) discloses a combination containing pendimethalin (ie pendimethalin) and uniconazole as an active ingredient, an anti-sprouting agent for the preparation of emulsifiable concentrate, and this product is now It is widely used in Guizhou, Yunnan and other places, and the effect is also good; however, the applicant further researched and found that the existing emulsifiable concentrate preparations will produce precipitation after being stored at minus 10 degrees to 50 degrees for a certain period of time, and the surface tension will also be large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0041] Preparation of 25% pendimethalin and uniconazole bud inhibitor

[0042] formula:

[0043] Pendimethalin: 23%

[0044] Uniconazole: 2%

[0045] Xylene: 28%

[0046] N,N-Dimethylformamide 4%

[0047] Composite emulsifier of styrene-based phenol polyoxyethylene ether and Nongru 500# (the weight ratio of the two is 1:3) 4%

[0048] deionized water make up

[0049] Preparation method: Step 1. Add the active ingredient, solvent and co-solvent of the batching amount into a container with heating and stirring, stir evenly, let the active ingredient completely dissolve in the solvent and co-solvent, add emulsifier, heat and stir for 2-3 hours , the heating temperature is 40-60 ° C, the stirring speed is 80-120 rpm, and the oil phase is obtained;

[0050] Step 2. Preparation of water emulsion: Slowly add the water phase to the oil phase of step 1, and shear at 6000 rpm for 30 minutes to prepare a water emulsion.

preparation Embodiment 2

[0052] Preparation of 30% pendimethalin and uniconazole germ inhibitor A

[0053] formula:

[0054] Pendimethalin: 28%

[0055] Uniconazole: 2%

[0056] Xylene: 20%

[0057] N,N-Dimethylformamide 4%

[0058] Composite emulsifier of styrene-based phenol polyoxyethylene ether and Nongru 500# (the weight ratio of the two is 1:3) 4%

[0059] deionized water make up;

[0060] All the other are with embodiment 1.

preparation Embodiment 3

[0062] Preparation of 30% pendimethalin and uniconazole sprout inhibitor B

[0063] formula:

[0064] Pendimethalin: 28%

[0065] Uniconazole: 2%

[0066] Xylene: 25%

[0067] N,N-Dimethylformamide 5%

[0068] Composite emulsifier of styrene-based phenol polyoxyethylene ether and Nongru 500# (the weight ratio of the two is 1:3) 6%

[0069] deionized water make up;

[0070] All the other are with embodiment 1.

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PUM

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Abstract

The invention relates to pendimethalin and uniconazole bud-controlling emulsion in water. The pendimethalin and uniconazole bud-controlling emulsion contains certain amounts of pendimethalin and uniconazole, solvent selected from one or more of methylbenzene, xylene, trimethylbenzene, ethyl alcohol and butanol, cosolvent selected from one or more of N,N-dimethylformamide, cyclohexanone and dimethylsulfoxide, compound emulsifier of styrylphenol polyoxyethylene ether and pesticide emulsifier 500#, and the balance water. The specific compound emulsifier formula is specifically selected; by means of the compound emulsifier, emulsification performance is enhanced, surface tension is reduced, and meanwhile the stability of the product is further improved.

Description

technical field [0001] The invention relates to the field of pesticide preparations, in particular to an emulsion in water for suppressing tobacco axillary buds, in particular to an emulsion in water which contains pendimethalin and uniconazole as active ingredients and is formulated with a specific emulsifier. [0002] technical background [0003] Tobacco is one of the important economic crops in my country. Tobacco is grown in 26 provinces in my country, among which Yunnan, Guizhou, Henan, Shandong, Anhui, Hunan, Hubei and other provinces have relatively large cultivation areas. All provinces in the middle and lower reaches of the Yangtze River have a certain planting area, and my country's tobacco production ranks first in the world. [0004] When the tobacco grows until the flower buds appear, if it is allowed to bloom and set seeds, the yield and quality of the tobacco leaves will be affected. At this time, topping is required to reduce the consumption of nutrients and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/04A01N25/30A01N43/653A01P21/00A01N33/18
Inventor 吕新国
Owner 四川百事东旺生物科技有限公司
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