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Disease prevention and treatment method based on improvement of comprehensive resistance of tobacco

A method of disease control and resistance technology, applied in the field of agriculture, can solve the problems of large amount of chemical pesticide use, insufficient quality of tobacco leaves, low proportion of high-quality tobacco leaves, etc., so as to reduce the incidence of tobacco fields and reduce the chance of artificially spreading diseases , the effect of increasing production

Inactive Publication Date: 2021-11-02
SHANDONG WEIFANG TOBACCO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (1) A large amount of chemical pesticides are used;
[0009] (2) The incidence of tobacco is high;
[0010] (3) The traditional method is not environmentally friendly, low cost and high residue;
[0011] (4) The quality of tobacco leaves produced by traditional methods is not good enough, the content of nicotine is high, and the proportion of high-quality tobacco leaves is low;
[0012] (5) The yield of tobacco leaves produced by traditional methods is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Embodiment 1 A kind of disease control method based on improving comprehensive resistance of tobacco

[0057] Include the following steps:

[0058] (1) Disinfection in the early stage of seedling cultivation

[0059] For seedbed disinfection, use a 60-fold dilution containing 50g of Simedi per square meter and evenly pour it on the surface of the seedling bed, and the liquid will soak the surface soil for more than 4cm. Seal it with a film for 7 days, then remove the film, and hoe the seedlings to loosen the soil, dry them for 7 days, and then level them. The aisle of the seedling pond can be sprayed with a 100-fold dilution of Yubao containing 40%, and at the same time, it can be disinfected multiple times with broad-spectrum herbicides and insecticides.

[0060] Disinfect around the shed. After closing the shed, spread quicklime powder evenly around the seedling shed and in the aisle, so that it is advisable not to see the soil.

[0061] Disinfect seedling trays, u...

Embodiment 2

[0074] Embodiment 2 A kind of disease control method based on improving comprehensive resistance of tobacco

[0075] Include the following steps:

[0076] The variety Guiyan No. 6 was selected and cultivated in Weifang Tobacco Area, and transplanted after completion of seedling cultivation.

[0077] (1) Prevention and control at the seedling stage

[0078] On the 4th day of the seedling stage after transplanting, when all the tobacco leaves of the tobacco plant were stretched, the antiviral liquid was sprayed to prevent and treat viral diseases, with an amount of 25 kg per mu. On the 10th day of the seedling stage, the leaves of the tobacco plant did not wither, and the leaves of the tobacco plant did not wither, and the leaves of the tobacco plant grew When there is a new leaf, spray for the second time, and the dosage per mu is 40kg;

[0079] The antiviral liquid includes the following components in parts by mass: 2 parts of fungus polysaccharide, 5 parts of chitosan oligo...

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Abstract

The invention provides a disease prevention and treatment method based on improvement of comprehensive resistance of tobacco. The disease prevention and treatment method comprises the steps of seedling raising early-stage disinfection, seedling raising period disinfection, seedling returning period prevention and treatment and growing period prevention and treatment. By means of the disease prevention and treatment method disclosed by the invention, the resistance of tobacco seedlings is improved, the incidence rate of tobacco field virus diseases is 5-5.5%, the incidence rate of tobacco mosaic diseases is 6.5-6.8%, the incidence rate of tobacco brown spots is 4.5-5.0%, the incidence rate of tobacco field virus diseases is reduced by 42-44%, the incidence rate of tobacco mosaic diseases is 35-37%, and the incidence rate of the tobacco brown spots is reduced by 40-42%. The disease prevention frequency of a tobacco field is reduced by 2 times, the labor cost per mu is reduced by 7.5-8 yuan, and the reduction amplitude is 25-27%.

Description

technical field [0001] The invention relates to a disease control method based on improving tobacco comprehensive resistance, belonging to the field of agricultural technology. Background technique [0002] Tobacco is an economic crop for leaves with a long growth period. Due to the influence of climate and soil, diseases and insect pests occur from time to time. This requires comprehensive control measures to minimize the impact of diseases and insect pests. After the tobacco is sprayed, it can control the harmful organisms that harm the tobacco and protect the growth of the tobacco. For a long period of time, influenced by the traditional concepts of disease prevention and pest control, some tobacco farmers believe that the use of chemical pesticides is the most effective, economical, and labor-saving. Therefore, the use of chemical pesticides has become a common habit of tobacco farmers. However, limited by pesticide application technology, pesticide application equipmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/00
CPCA01G13/00
Inventor 郭全伟张英华聂威薛博王术科杜传印宋岗
Owner SHANDONG WEIFANG TOBACCO CO LTD
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