Application technique of dimethyl disulfide as soil fumigant

A technology of dimethyl disulfide and dimethyl disulfide, which is applied in the fields of application, biocide, fungicide, etc., and can solve the problems of ozone-depleting substances, etc.

Active Publication Date: 2009-07-29
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because methyl bromide is an ozone-depleting substance, it is listed as a restricted substance by the United Nations Environment Program (UNEP) and will be banned in 2015.

Method used

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  • Application technique of dimethyl disulfide as soil fumigant
  • Application technique of dimethyl disulfide as soil fumigant
  • Application technique of dimethyl disulfide as soil fumigant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] 80% dimethyl disulfide pesticide technical 40 g / m 2 It is used in the field with a small manual syringe, and then covered with a correspondingly thick film, fumigated for about 15 days, and the seedlings can be transplanted after opening the air. The fumigant can effectively kill nematodes and soil-borne pathogenic fungi in the soil.

Embodiment 2

[0011] Add 1-20% Nongru 500, Nongru 600#, Tween 80, and Tween 20 emulsifiers to 80% dimethyl disulfide pesticide, and mix them at 40 g / m 2 The dosage is used in the field by drip irrigation, and then covered with a correspondingly thick film, fumigated for about 15 days, and the seedlings can be transplanted after opening the air. This fumigant can effectively kill nematodes and soil-borne pathogenic fungi in the soil

[0012] Implementation example 3

[0013] 0.8921 g of 98% pesticide technical A, 0.2031 g of melamine-formaldehyde resin, urea-formaldehyde resin, gelatin, gum arabic single or mixture. according to figure 1 The production process can be processed into dimethyl disulfide capsules.

[0014] Annex I:

[0015] Indoor bioassay results of dimethyl disulfide fumigant

[0016] 1 Materials and methods

[0017] The soil samples of 600g Hebei Gu'an C. nematodes and pathogenic bacteria were installed in a 1.5L desiccator. The soil bulk density is 0.84, and the soil ...

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Abstract

The invention relates to a soil fumigant, namely dimethyl disulfide ( another name: dimethyl disulfide, methyl disulfide, dimethyl disulfide, DMDS, C2H6S2), which is applicable to the control of crops such as vegetables, strawberries, flowers, melons, orchards, vineyards, and Chinese herbal medicines, and can effectively kill eelworms, soil-borne pathogenic fungi, weeds, underground pests, and the like in the soil. The dimethyl disulfide can be processed into missible oil, and the missible oil is applied in the field through drip irrigation; a raw medicine can be directly applied by an injection method; and the raw material can be processed into capsules to be directly used in the field.

Description

technical field [0001] The present invention relates to soil fumigant dimethyl disulfide (alias: dimethyl disulfide; Dimethyl disulfide; Dimethyl disulfide; DMDS, C 2 h 6 S 2 ) is suitable for the control of vegetables, strawberries, flowers, melons, orchards, vineyards, Chinese herbal medicines and other crops, and can effectively kill nematodes, soil-borne pathogenic fungi, weeds and underground pests in the soil. [0002] Dimethyl disulfide can be processed into emulsifiable concentrate and applied by drip irrigation in the field; the original drug can be directly applied by injection; the original drug can be processed into capsules and used directly in the field. Background technique [0003] Soil-borne diseases are a type of plant diseases caused by the infection of pathogens surviving in the soil. It is serious on vegetables, melons and fruits, and ornamental plants, especially on crops in greenhouses. Usually after 3-5 years of greenhouse cultivation, the yield a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N31/02A01N25/18A01N25/28A01P5/00A01P3/00
Inventor 曹坳程宋兆欣郭美霞王秋霞赵云
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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