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Soil particle fumigant

A soil particle and fumigant technology, which is applied in the direction of soil steam disinfection, biocide, bactericide, etc., can solve the problems of wasting fumigants and fumigants, and achieve the effect of improving utilization rate, safety, and less medication

Inactive Publication Date: 2011-02-16
韩景良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the disadvantages of direct use of 1.3-dichloropropene and chloropicrin fumigant and the technical problem that the fumigant will be released and wasted simply by being adsorbed on an active solid carrier, the purpose of the present invention is to provide a fumigant that will not be released during storage or transportation. and soil particle fumigants that waste fumigants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] Example 1. An experiment on the preparation and application effect of the adsorption mixed gas and the coating of the soil particle fumigant of the present invention.

[0017] The iodine adsorption value reaches 800-1000, and the fineness is 120-200 mesh activated carbon particles 70g. Put it into a glass adsorption bottle, connect the lower port to the steam outlet of the vaporizer, and connect the upper port to 2% sodium sulfite decomposition solution. Add 20g of chloropicrin, 10g of 1.3-dichloropropene, 2g of hydroquinone stabilizer to the vaporization bottle, stop heating and evaporating for 3 hours, weigh the activated carbon particle carrier to increase in weight by 16g, and form an adsorbed chloropicrin and 1.3-dichloro Two fumigants of propylene and solid particle fumigant of hydroquinone stabilizer. Put the solid particle fumigant into the pill making machine, spray molten urea and gelatin solution accounting for 30% by weight of urea, and form a coating on th...

example 2

[0019] Example 2, activated alumina as a soil particle fumigant of the present invention as a solid adsorption carrier.

[0020] Weigh 70 g of activated alumina particles and connect the instrument with the method of Example 1, add 15 g of chloropicrin, 15 g of 1.3-dichloropropene, and 2 g of xylene to evaporate for 6 hours, and the weight of the activated alumina particle carrier increases by 32 g. In this way, a solid particle fumigant adsorbed with two fumigants of chloropicrin and 1.3-dichloropropene and a hydroquinone stabilizer is formed. Put the solid particle fumigant into the pill making machine, spray molten urea and gelatin solution accounting for 30% by weight of urea, and form a coating on the outer surface of the solid particle fumigant, that is, chloropicrin and 1.3-dichloropropene Mixed soil particles fumigant. Soil particle fumigant plastic bags are sealed for storage and transportation, and the plastic bag is opened after 30 days, and the outer surface of th...

example 3

[0021] Example 3, an experiment of the preparation and application effect of a soil particle fumigant containing chloropicrin and coating of the present invention.

[0022] The iodine adsorption value reaches 800-1000, and the fineness is 120-200 mesh activated carbon particles 70g. Put it into a glass adsorption bottle, connect the lower port to the steam outlet of the vaporizer, and connect the upper port to 2% sodium sulfite decomposition solution. Add 30g of chloropicrin into the vaporization bottle, heat and evaporate for 3 hours to stop, weigh the activated carbon particle carrier to gain 18g, and form the activated carbon solid particle fumigant adsorbed by the chloropicrin fumigant. Put the activated carbon solid particle fumigant into the pelletizing machine, spray molten urea and polyvinyl alcohol solution accounting for 30% by weight of urea, and form a coating on the outer surface of the solid particle fumigant, that is, the fumigation of soil particles made of chl...

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Abstract

The invention discloses a soil particle fumigant taking one or two of activated carbon particles and activated aluminum oxide particles as a particle carrier which is absorbed with the fumigant, wherein the fumigant is one or two of acquinite and 1,3-dichloropropylene. The soil particle fumigant is characterized in that the particle carrier absorbed with the fumigant is externally coated with a coating made from at least one material of urea, polyvinyl alcohol and gelatin. The soil particle fumigant has good effects for killing nematodes and pathogenic bacteria, high drug utilization rate and long residual life, is safe, economic and convenient in use, and is the most dominant substitute for bromomethane (CH3Br) in the worldwide scope at present.

Description

technical field [0001] The invention relates to a soil particle fumigant which can replace methyl bromide, in particular to a pesticide containing chloropicrin or 1.3-dichloropropene adsorbed in an active solid carrier to form solid particles for fumigation. Background technique [0002] Methyl bromide, also known as methyl bromide, is a broad-spectrum pesticide. In addition to being used for fumigation in warehouses, buildings and spaces before shipment, it is also used for soil disinfection and control, soil-borne diseases, nematodes, underground pests and weeds, etc. . However, 30%-85% of the total amount of methyl bromide used for soil disinfection is discharged into the atmosphere, which has severely damaged the ozone layer. Therefore, it has been listed as an ozone-depleting substance (ODS) by the United Nations "Montreal Protocol" in 1992. In 2015, the whole world will ban the use of R&D substitutes, which has become the world's top priority. [0003] In order to e...

Claims

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Application Information

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IPC IPC(8): A01P3/00A01P5/00A01N25/18A01N29/02A01G11/00A01N47/08
Inventor 韩景良
Owner 韩景良
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