Composition for preventing and treating rice bacterial spot disease and its preparation method and application

A technology for bacterial and streak disease, applied in botany equipment and methods, chemicals for biological control, applications, etc., can solve problems such as aggravated damage, threat to high and stable rice yield, reduce food loss, and solve control problems Drug shortage problem, quick effect

Active Publication Date: 2021-04-06
PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, with the large-scale promotion of hybrid rice and the transfer of seeds from south to north, the incidence area of ​​rice bacterial streak disease has continued to expand, and the damage has increased year by year. Now it has occurred in the entire southern rice region, which has a great impact on the high and stable yield of rice. pose a serious threat
For the prevention and treatment of rice bacterial streak disease, there is still a lack of specific agents. As the original agricultural streptomycin and Yeqingshuang (Yekujing) and other products have been withdrawn from the market due to national bans, a new type of agent with high efficiency, low toxicity and low residue has been developed. is very necessary

Method used

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  • Composition for preventing and treating rice bacterial spot disease and its preparation method and application
  • Composition for preventing and treating rice bacterial spot disease and its preparation method and application
  • Composition for preventing and treating rice bacterial spot disease and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh 1000g of dodecyldimethylbenzyl ammonium bromide, 1500g of copper sulfate pentahydrate, 2000ml of 84 disinfectant, and 5500ml of clear water.

[0033] The preparation method is:

[0034] In the first step, 5500ml of water and 1500g of copper sulfate pentahydrate are placed in a stirring device to disperse evenly (at 50°C, at a speed of 200 rpm, stirred for 40 minutes), to obtain a copper sulfate pentahydrate solution;

[0035] In the second step, 1000 g of dodecyldimethylbenzyl ammonium bromide is added to the copper sulfate pentahydrate solution prepared in the first step, and at normal temperature, stir for 30 minutes at a speed of 200 rpm, and continue to stir until the solution become a transparent liquid;

[0036] In the third step, add the solution obtained in the second step into the reaction kettle, add 2000ml of 84 disinfectant solution, and stir at 200 rpm for 30 minutes at 25°C to obtain composition A.

Embodiment 2

[0038] Weigh 1250g of dodecyldimethylbenzyl ammonium bromide, 1750g of copper sulfate pentahydrate, 2250ml of 84 disinfectant, and 4750ml of clear water.

[0039] The preparation method is:

[0040] In the first step, 4750ml of water and 1750g of copper sulfate pentahydrate are placed in a stirring device to disperse evenly, and stirred for 45 minutes at a speed of 200 rpm at 55°C to obtain a copper sulfate pentahydrate solution;

[0041] In the second step, add 1250 g of dodecyl dimethyl benzyl ammonium bromide to the copper sulfate pentahydrate solution prepared in the first step, at normal temperature, stir for 20 minutes at a speed of 100 rpm, and continue to stir until the solution become a transparent liquid;

[0042] In the third step, add the solution obtained in the second step into the reaction kettle, add 2250ml of 84 disinfectant, and stir at 100 rpm at 30°C for 15 minutes to obtain composition B.

Embodiment 3

[0044] Weigh 1500g of dodecyldimethylbenzyl ammonium bromide, 2000g of copper sulfate pentahydrate, 2500ml of 84 disinfectant, and 4000ml of water.

[0045] The preparation method is:

[0046] In the first step, 4000ml of water and 2000g of copper sulfate pentahydrate are placed in a stirring device to disperse evenly, and stirred at 200 rpm at 60°C for 50 minutes to obtain a copper sulfate pentahydrate solution;

[0047] In the second step, 1250 g of dodecyldimethylbenzyl ammonium bromide was added to the copper sulfate pentahydrate solution prepared in the first step, at 30° C., at 150 rpm, stirred for 15 minutes, and continued to stir until The solution becomes a transparent liquid;

[0048]In the third step, add the solution obtained in the second step into the reaction kettle, add 2250ml of 84 disinfectant, and stir at 100 rpm at 28°C for 20 minutes to obtain composition C.

[0049] The water preparation of the composition described in the invention can be used for soak...

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Abstract

The invention discloses a composition for preventing and treating rice bacterial spot disease, a preparation method and application thereof. The composition comprises the following components in weight percent: 10-15 parts of dodecyl dimethyl benzyl ammonium bromide, 15-20 parts of copper sulfate pentahydrate, 20-25 parts of 84 disinfectant, 40-55 parts of water share. After the composition in the present invention is diluted, it can be used for rice soaking to prevent rice bacterial stripe disease, or it can be sprayed on the rice leaf surface for preventing and treating rice bacterial stripe disease. The application method is easy to operate, The problem of shortage of control agents for rice bacterial streak disease is solved, and the invention provides technical support for many fields such as agricultural production and scientific research.

Description

technical field [0001] The invention relates to the field of agricultural production, in particular to a composition for preventing and treating rice bacterial spot disease, a preparation method and application thereof. Background technique [0002] With the adjustment of planting structure and the invasion of foreign pests, major crop diseases have frequently broken out in recent years. Among them, rice bacterial streak and rice bacterial blight in food crops, citrus canker in fruit trees, and bacterial wilt of solanaceous vegetables in melons and vegetables have caused serious losses to crops. At present, the prevention and control of plant diseases in production mainly relies on chemical pesticides. In stark contrast to the difficulty in the prevention and control of bacterial diseases and the general hazards, the number of registered pesticides for the prevention and control of bacterial diseases in China is still relatively limited. As of the end of October 2018, There...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/20A01N59/00A01N33/12A01P1/00
CPCA01N59/20A01N59/00A01N33/12
Inventor 杨祁云林壁润孙大元张景欣沈会芳蒲小明
Owner PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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