Composition and method for preventing and treating root-knot nematode, soil borne pathogenic fungi and weeds

A technology of pathogenic fungi and root-knot nematodes, applied in the field of pesticides, can solve problems such as difficult to eradicate, and achieve the effects of cost saving, convenient application and excellent effect

Inactive Publication Date: 2013-09-04
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

[0003] The present invention aims at the problems that root-knot nematodes, soil-borne diseases and weeds are easy to take place and difficult to eradicate in economic crops such as flowers, m

Method used

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  • Composition and method for preventing and treating root-knot nematode, soil borne pathogenic fungi and weeds
  • Composition and method for preventing and treating root-knot nematode, soil borne pathogenic fungi and weeds
  • Composition and method for preventing and treating root-knot nematode, soil borne pathogenic fungi and weeds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The reagents used in this example are:

[0023] 99% dimethyl disulfide (Shanghai Yuanji Chemical Co., Ltd.), abbreviation: DMDS;

[0024] 98% Dianlong Granules (Jiangsu Nantong Shizhuang Chemical Co., Ltd.), abbreviation: DZ.

[0025] The soil samples for testing are:

[0026] The soil samples were collected from the cucumber seedling field in Tongzhou, Beijing, where nematodes and diseases were serious all the year round. The soil from the cultivation layer was taken through a 2mm sieve and mixed well for later use. After analysis, the soil water content (water: dry soil) is 19.84%, pH7.07, soil organic matter content 33.0g / kg, NH 4+ -N37.2mg / kg, NO 3 -N388.1mg / kg, available phosphorus 327.7mg / kg, available potassium 875.4mg / kg, belonging to sandy loam.

[0027] The evaluation indicators and methods are:

[0028] Incognito root-knot nematode Meloidogyneincognita., by centrifugation;

[0029] Fusarium spp., isolated by Komada method;

[0030] Phytophthora spp., i...

Embodiment 2

[0066] Before the lettuce is planted, first the soil is deeply plowed by 30cm, while ensuring that the soil has a certain humidity, and then 98% daniron microgranules (according to the active ingredient 25g / m 2 The amount of) mixed soil application, then 99% of dimethyl disulfide (according to the active ingredient 40g / m 2 The dosage) is evenly injected into the soil, and finally the "reverse burial method" is used to cover the film and fumigate for 2 weeks, then open the air for 3 days, and after the lettuce seed germination test qualitatively judges that there is no chemical residue, it can be planted.

Embodiment 3

[0068] Before cucumber is planted, at first the soil is deeply plowed 30cm, and guarantees that soil has certain humidity simultaneously, and then 98% daniron microparticles (according to active ingredient 25g / m 2 The amount of) mixed soil application, then 99% of dimethyl disulfide (according to the active ingredient 40g / m 2 The dosage) is evenly applied to the soil through the drip irrigation system (in order to increase the water solubility of dimethyl disulfide, Tween 80 needs to be added in an amount of 4%), and finally the "reverse burial method" is used to fumigate the film for 3 weeks. After 7 days, after the cucumber seed germination test qualitatively judges that there is no pesticide residue, it can be planted.

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Abstract

The invention discloses a composition and a method for preventing and treating root-knot nematode, soil borne pathogenic fungi and weeds, and belongs to the technical field of pesticides. The composition consists of dazomet preparation and dimethyl disulfide preparation. The using method of the composition comprises the following steps of: performing deep tillage on the soil, then applying the dazomet preparation into the soil, injecting the dimethyl disulfide preparation into the soil for applying the dimethyl disulfide preparation into the soil through a dropping system, covering a film on the soil by a reverse burying method, fumigating the soil for 2-4 weeks, ventilating the soil for 3-12 days, and planting a crop seed to be cultivated into the soil after the soil does not contain any insecticide residues based on the qualitative judgment of a sprouting test. The composition is suitable for sterilization of the soil before vegetables, strawberries, flowers, melons, nursery gardens, fruit gardens, tea gardens, grape gardens, forests, traditional Chinese medicinal crops and the like are planted; and therefore, the southern root-knot nematode, the main soil borne pathogenic fungi and the main graminaceous and broad leaf weeds can be effectively prevented and treated.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a composition and a method for preventing and controlling root-knot nematodes, soil-borne pathogenic fungi and weeds. Background technique [0002] In the past ten years, with the adjustment of agricultural planting structure, protected cultivation has developed rapidly in our country. The national protected area has exceeded 2 million hectares. As an important agricultural measure to increase farmers' income and transform from traditional agriculture to modern agriculture, protected cultivation in China will continue to develop in the future, and the crops cultivated will also change from the current vegetables and strawberries to flowers, melons, and fruit trees. , Nursery, Chinese herbal medicine and other directions. The development of protected areas also provides a suitable environment for the occurrence and development of root-knot nematodes, soil-borne di...

Claims

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Application Information

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IPC IPC(8): A01N43/88A01P3/00A01P5/00A01P13/00A01N41/12
Inventor 毛连纲曹坳程颜冬冬马涛涛王秋霞郭美霞李园欧阳灿彬
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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