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Dimethyl disulfide granules and preparation method thereof

A technology of dimethyl disulfide particles and dimethyl disulfide, which is applied in the directions of botanical equipment and methods, biocides, fungicides, etc., can solve the problems of ozone-depleting substances and the like, and achieve the effect of good effect and safe use.

Inactive Publication Date: 2015-05-13
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 and will be banned in 2015.

Method used

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  • Dimethyl disulfide granules and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Preparation of 1% dimethyl disulfide granules

[0025] (1) Select raw materials according to the following components, and mix them uniformly, 0.2g of dimethyl disulfide former drug, 20g of zeolite powder;

[0026] (2) Fully mix the obtained granules, add water to moisten, fully stir, then granulate, dry and sieve to obtain 1% dimethyl disulfide granules;

Embodiment 2

[0028] Preparation of 10% dimethyl disulfide granules

[0029] (1) Select raw materials according to the following components, mix them uniformly, dimethyl disulfide original drug 2g, zeolite powder 20g;

[0030] (2) Fully mix the obtained granules, add water to moisten, fully stir evenly, then granulate, dry and sieve to obtain 10% dimethyl disulfide granules;

Embodiment 3

[0032] Formulated 30% dimethyl disulfide granules

[0033] (1) Select raw materials according to the following components, and mix them uniformly, dimethyl disulfide original drug 6g, zeolite powder 30g;

[0034] (2) Fully mix the obtained granules, add water to moisten, fully stir evenly, then granulate, and sieve after drying to obtain 30% dimethyl disulfide granules;

[0035] The method of indoor biological activity measurement further illustrates that the dimethyl disulfide granule of the present invention has a better control effect when used for preventing and controlling soil nematodes and soil-borne pathogenic fungi.

[0036] The dimethyl disulfide-containing granules prepared in Example 2 were used, and 600 g of soil samples of nematodes and pathogenic bacteria were placed in a 1.5 L desiccator. The granules prepared by the present invention are treated with five concentrations (3.125, 6.25, 12.5, 25, 50 mg / kg) in order of effective concentration from high to low, an...

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Abstract

The invention discloses soil treatment granules containing dimethyl disulfide. The soil treatment granules comprise the following components by weight percent: 1-30% of dimethyl disulfide serving as an effective component and 100% of zeolite powder. Dimethyl disulfide technical is prepared into the granules, so that the use of dimethyl disulfide as a soil fumigant is better facilitated and the granules have the characteristics of safety and convenience in use and the like. The prepared dimethyl disulfide granules have a relatively good effect on prevention and control of soil root-knot nematodes and soilborne pathogenic fungi.

Description

technical field [0001] The invention relates to the field of pesticide preparations, in particular to a dimethyl disulfide granule and a preparation method thereof. Background technique [0002] 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 and quality of crops are seriously affected, generally resulting in a 20%-40% reduction in production, and a serious reduction in production of more than 60% or even no harvest. With the further expansion of greenhouse cultivation area and the continuous cultivation of high value-added crops, the problem of soil-borne diseases has become more and more prominent. [0003] Traditional methods of preventing and controlling soil-borne diseases include disease-resistant breeding, crop rotation, deep plowing and gra...

Claims

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Application Information

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IPC IPC(8): A01N41/12A01N25/12A01P5/00A01P3/00
Inventor 颜冬冬毛连纲王秋霞李园欧阳灿彬曹坳程郭美霞
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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