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Agent for preventing and treating plant continuous cropping disease and preparation method thereof

A technology for the prevention and control agent of heavy cropping disease, which is applied in the field of plant heavy cropping disease prevention and control agent and its preparation, which can solve the problems of difficult application, high cost, and large dosage, and achieve the effect of low use cost and wide control spectrum

Inactive Publication Date: 2013-05-15
伊长君 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although my country has introduced some non-chemical treatment methods from abroad in recent years, such as steam disinfection, solar disinfection, and biological fumigation, the cost is too high, the farming model is limited, and many other factors make it difficult to popularize.
Among chemical agents, chloropicrin has a better effect, but the technical requirements for its use are high, the dosage is large, and there are hidden dangers to human and animal safety, so it is difficult to apply

Method used

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  • Agent for preventing and treating plant continuous cropping disease and preparation method thereof
  • Agent for preventing and treating plant continuous cropping disease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation of 30wt% content preparation:

[0028] 1. the mass concentration of 70g adsorbent activated clay and 33g is the avermectin aqueous solution of 30wt%, mixes granulation, the moisture content after low-temperature drying is lower than 5%, is placed in the adsorption container, and the adsorption container communicates with the vaporizer.

[0029] The raw material of adsorbent activated clay is powder, 100~200 mesh, and needs to be processed and granulated before use, with a particle diameter of 0.3~0.5cm;

[0030] ② Chloropicrin is placed in a vaporizer, and when heated to 70°C~boiling point, the chloropicrin is vaporized, and the adsorption temperature of the adsorption vessel is kept at 4~10°C. The vaporized chloropicrin is adsorbed by the product of step ①. When the amount is 20g, the reaction is terminated, and the reaction product in the adsorption tower is taken out, and when the total weight of the product is 100g, the finished product of round gran...

Embodiment 2

[0033] The preparation of 20wt% content preparation:

[0034] 1. reaction device such as embodiment 1, the mass concentration of 80g activated carbon and 33g is the abamectin aqueous solution of 30wt%, mixes granulation, the moisture content after low-temperature drying is lower than 5%, is placed in the adsorption container, and the adsorption container connected to the vaporizer.

[0035] ② Chloropicrin is placed in a vaporizer, and when heated to 70°C~boiling point, the chloropicrin is vaporized, and the adsorption temperature of the adsorption vessel is kept at 4~10°C. The vaporized chloropicrin is adsorbed by the product of step ①. When the amount is about 10g, the reaction is terminated, the reaction product in the adsorption tower is taken out, and when the total weight is 100g, the finished product of round granular solid dosage form is obtained, and the particle size is 0.5~5cm.

Embodiment 3

[0037] For example: taking the products described in Examples 1 and 2 applied to greenhouse muskmelon as an example, apply 30g per square meter, bury it in the soil layer 20-30cm, plant-to-plant distance 20cm, apply in holes, and the experimental parameters are as shown in Table 1:

[0038] 1. Control effect on melon nematode

[0039]

[0040]

[0041] From the data in the table, it can be seen that the product prepared by the method of the present invention has less application amount, remarkable effect, no need for special experimental conditions, simple operation process, good repeatability, and can achieve high-quality and high-efficiency prevention and treatment of plant heavy cropping disease. This method has a wide range of applications and prospects.

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Abstract

The invention discloses an agent for preventing and treating plant continuous cropping disease and a preparation method thereof. The preparation method comprises the following steps of uniformly mixing a carrier adsorbent with an abamectin water solution with the mass concentration of 30wt%, and then drying and granulating, wherein the mass ratio of the carrier adsorbent to the abamectin water solution is (70-80): 33; then introducing gas formed by heating and gasifying nitrochloroform into a reaction tank filled with the product of the last step to carry out adsorption reaction; and when the mass ratio of the reduced mass of the nitrochloroform to the carrier adsorbent is (10-20): (70-80), preparing a final product. According to the preventing and treating agent disclosed by the invention, the ratios and the contents of effective components of the product can be adjusted according to different preventing and treating objects and the preventing and treating spectrum is wide. The preventing and treating agent is efficient, low-toxic and medicine-saving, and has a low use cost. The application is safe and convenient and no environmental pressure exists. The preventing and treating agent has wide application range and application prospect.

Description

technical field [0001] The invention belongs to the technical field of pesticide manufacture, and in particular relates to an agent for preventing and controlling plant cropping disease and a preparation method thereof. Background technique [0002] Soil-borne diseases are serious plant diseases. It occurs seriously on vegetables, fruits, ornamental plants and forest trees; especially in protected greenhouses. Because the temperature and humidity environment of the shed provides suitable conditions for the occurrence and development of soil-borne diseases. Usually 2 to 3 years of continuous cropping will reduce production by 20 to 40%, and in 3 to 5 years, the production will be severely reduced by more than 60% or even no harvest. Soil-borne diseases are an important cause of crop economic losses. It is a complex infection of crops formed by obligate parasitic and semisexual parasitic nematodes, commonly known as pathogenic nematodes and soil-borne pathogens. [0003] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/08A01N43/90A01P5/00A01P3/00A01P1/00
Inventor 伊长君韩景良
Owner 伊长君
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