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Application technology of furfural serving as soil fumigant

A fumigant and soil technology, applied in the field of pesticides, can solve problems such as ozone-depleting substances, achieve good control effects and reduce environmental pollution

Inactive Publication Date: 2013-09-18
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 (UNEP) and will be banned in 2015.

Method used

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  • Application technology of furfural serving as soil fumigant
  • Application technology of furfural serving as soil fumigant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The bioassay of embodiment 1 furfural fumigant

[0018] Put 1000g soil samples of nematodes and pathogenic bacteria collected in Shunyi, Beijing in a 3.5L desiccator. The soil bulk density is 0.84, and the soil moisture is 21.32%. Furfural was treated with five concentrations in order of concentration from high to low, and a blank control treatment was set up. Each treatment was repeated three times. The temperature during treatment is 20-25°C, the soil humidity is 20.2%, and the fumigation time is 5 days to separate soil microorganisms and nematodes, and evaluate the fumigation effect. Soil root-knot nematode Meloidogyne spp. was isolated by Liu Weizhi method, Fusarium spp. was isolated by Komada method, and Phytophthora spp. was isolated by Masago method. At the same time, 20 seeds of crabgrass crabgrass and velvetleaf were sown on demand in all treatments. After the experiment, the root length and shoot length of crabgrass and velvetleaf were measured respectivel...

Embodiment 2

[0025] Use furfural pesticides at 40 g / m 2 The dosage is used in the field through a small manual syringe, then covered with plastic film, fumigated for 10-20 days, and the seedlings can be transplanted after opening the air. The fumigant can effectively kill nematodes, Phytophthora, Fusarium, crabgrass and Abutilon in the soil.

Embodiment 3

[0027] According to parts by weight, 80 parts of furfural and 20 parts of agricultural milk 500 are evenly mixed to prepare furfural emulsion pesticide.

[0028] Furfural emulsion pesticide according to 40 g / m 2 The dosage is used in the field through a small manual syringe, then covered with plastic film, fumigated for 10-20 days, and the seedlings can be transplanted after opening the air. The fumigant can effectively kill nematodes, Phytophthora, Fusarium, crabgrass and Abutilon in the soil.

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Abstract

The invention relates to an application technology of furfural serving as a soil fumigant, and discloses a soil fumigant which belongs to the technical field of pesticides and is used for killing soil nematodes, soil-borne pathogeny fungi, weeds and soil insects. The soil fumigant is furfural or a furfural preparation. The furfural has very good preventing and treating effects on the soil nematodes, and has relatively good preventing and treating effects on soil-borne diseases and the weeds. The dosage form of the furfural refers to a liquid technical toxicant; the furfural can be used in a field by a small manual syringe or other small soil fumigant delivery machines; the furfural can be applied through drip irrigation after being prepared into missible oil. The furfural is popularized as the soil fumigant, so that the safe and scientific use of farmers is facilitated, and the environmental pollution is reduced.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a soil fumigant-furfural for killing nematodes, soil-borne pathogenic fungi, weeds and underground pests in soil. 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 dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/08A01N25/18A01P5/00A01P3/00A01P13/00
Inventor 马涛涛颜冬冬毛连纲王秋霞李园欧阳灿彬郭美霞曹坳程
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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