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Soil fumigant compounded of dimethyl disulfide, nitrochloroform and abamectin

A technology of dimethyl disulfide and abamectin, which is applied in the direction of fungicides, herbicides, algicides, and biocides, and can solve problems such as poor broad-spectrum, poor effect on nematodes, and ineffective use , to achieve the effect of crop safety and convenient application

Active Publication Date: 2014-09-10
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effect of a single agent is not obvious, and the broad spectrum is not strong. For example, DMDS has a good effect on soil-borne nematodes, but it has a poor effect on pathogenic fungi and bacteria. Chloropicrin has a strong effect on pathogenic fungi and bacteria. Good effect, but less effective against nematodes

Method used

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  • Soil fumigant compounded of dimethyl disulfide, nitrochloroform and abamectin
  • Soil fumigant compounded of dimethyl disulfide, nitrochloroform and abamectin
  • Soil fumigant compounded of dimethyl disulfide, nitrochloroform and abamectin

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Embodiment 1

[0019] The reagents used in this example are:

[0020] Dimethyl disulfide (DMDS, Shanghai Yuanji Chemical Co., Ltd.)

[0021] Chloropicrin (Dalian Dyestuff Chemical Co., Ltd.)

[0022] Abamectin (Shanghai Yuanji Chemical Co., Ltd.)

[0023] The soil samples for testing are:

[0024] Tomatoes have been planted in Gu'an for more than five years, and soil samples with pathogenic bacteria and nematodes are carried in the greenhouse. The soil moisture is 18.71%, the soil bulk density is 0.86:, the texture of the soil is 81.824% of sand, 16.221% of silt, and 1.955% of clay. The fumigation time is 15 days, and the soil temperature during fumigation is 20°C-28°C.

[0025] The evaluation indicators and methods are:

[0026] Meloidogyne incognita., by centrifugation;

[0027] Fusarium spp., isolated by Komada method;

[0028] Phytophthora spp., isolated by Masago method;

[0029] Pyrenochaeta;

[0030] Verticillium dahliae;

[0031] Abutilon theophrasti, using vernier calipers...

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Abstract

The invention discloses a soil fumigant compounded of dimethyl disulfide, nitrochloroform and abamectin and application of the soil fumigant, belongs to the technical field of pesticides for soil. The soil fumigant comprises the following active ingredients in weight percent: 38%-70% of dimethyl disulfide, 10%-60% of nitrochloroform and 0.1%-2% of abamectin. The soil fumigant provided by the invention is capable of effectively preventing and controlling soil borne pathogenic fungi, nematode and weeds and is broad in spectrum. The soil fumigant provided by the invention has obvious synergism to root-knot nematode, fusarium, phytophthora fungi, pythium fungi, basidiomycota fungi, colletotrichum fungi, cylindrocarpon fungi, pyrenochaeta fungi, rhizoctonia fungi and verticillium fungi and field weeds, and is convenient to apply and safe to crops; meanwhile, three chemicals have no residue in soil and are safe to crops.

Description

technical field [0001] The invention belongs to the technical field of soil pesticides, and in particular relates to a soil fumigant compounded with dimethyl disulfide, chloropicrin and abamectin and its application in preventing and controlling root-knot nematodes and soil-borne diseases. Background technique [0002] Soil disinfection technology is a technology that can efficiently and quickly kill pathogenic bacteria, fungi, weeds, nematodes and underground pests in the soil and inhibit their growth. 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, often resulting in reduced production and lower product quality. Therefore, soil disinfection technology is one of the important measures that can effectively control soil-borne diseases. [0003] Traditional methods of preventing and controlling soil-borne diseases include disease-resistant...

Claims

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Application Information

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IPC IPC(8): A01N47/08A01N25/18A01P3/00A01P5/00A01P13/00A01N41/12A01N43/90
Inventor 曹坳程王秋霞颜冬冬毛连纲宋兆欣郭美霞李园欧阳灿彬刘鹏飞沈锦
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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