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Flue-cured tobacco management and flue-curing method based on salicylic acid application to alleviate gray tobacco

The technology of a management method and a curing method, applied in the field of tobacco cultivation, can solve the problems of time-consuming and labor-intensive, insignificant relief effect, etc., and achieve the effects of being easy to operate, inhibiting the further spread of the disease, and being convenient to obtain.

Active Publication Date: 2019-02-01
YUNNAN ACAD OF TOBACCO AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the prevention and control of gray smoke in the field mainly focuses on field cultivation management measures such as high-moisture cultivation soil, spreading lime, removing film and cultivation soil, and cultivating disease-resistant varieties, which is not only time-consuming and laborious, but also has no significant mitigation effect

Method used

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  • Flue-cured tobacco management and flue-curing method based on salicylic acid application to alleviate gray tobacco
  • Flue-cured tobacco management and flue-curing method based on salicylic acid application to alleviate gray tobacco
  • Flue-cured tobacco management and flue-curing method based on salicylic acid application to alleviate gray tobacco

Examples

Experimental program
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Effect test

Embodiment 1

[0079] A flue-cured tobacco management method based on salicylic acid application to alleviate gray smoke, comprising the following steps:

[0080] 1) Tobacco leaf gray grade identification and one-time spraying: Grade identification is carried out on the tobacco plants with gray smoke, and the disease degree of gray flue-cured tobacco is divided into six levels as follows:

[0081] Grade 0: The whole leaf is disease-free;

[0082] Grade 1: sporadically distributed gray-black spots on the main vein or branch veins, not exceeding 5% of the leaf area;

[0083] Grade 2: Gray black spots occupy 5%-15% of the leaf area:

[0084] Grade 3: Gray black spots occupy 15%-30% of the leaf area;

[0085] Grade 4: Gray black spots account for 30%-45% of the leaf area;

[0086] Grade 5: Gray black spots account for more than 45% of the leaf area;

[0087] Grade 6: gray-black spots occupy more than 45% of the leaf area, and gray-black spots appear on the petiole and spread to the stem;

...

Embodiment 2

[0100] A flue-cured tobacco management method based on the application of salicylic acid to alleviate gray smoke, comprising the following steps:

[0101] 1) Tobacco leaf gray grade identification and one-time spraying: The tobacco plants with gray smoke are graded and the disease degree of gray flue-cured tobacco is divided into six grades as follows:

[0102] Grade 0: The whole leaf is disease-free;

[0103] Grade 1: The main veins or branches are scattered with gray-black spots, not exceeding 5% of the leaf area;

[0104] Grade 2: Grey-black spots occupy 5%-15% of leaf area:

[0105] Level 3: gray-black spots occupy 15%-30% of the leaf area;

[0106] Grade 4: gray-black spots occupy 30%-45% of the leaf area;

[0107] Grade 5: gray-black spots occupy more than 45% of the leaf area;

[0108] Grade 6: gray-black spots occupy more than 45% of the leaf area, and gray-black spots appear on petioles and spread to the stem;

[0109] When grading tobacco plants that produce gra...

Embodiment 3

[0121] A flue-cured tobacco management method based on the application of salicylic acid to alleviate gray smoke, comprising the following steps:

[0122] 1) Tobacco leaf gray grade identification and one-time spraying: The tobacco plants with gray smoke are graded and the disease degree of gray flue-cured tobacco is divided into six grades as follows:

[0123] Grade 0: The whole leaf is disease-free;

[0124] Grade 1: The main veins or branches are scattered with gray-black spots, not exceeding 5% of the leaf area;

[0125] Grade 2: Grey-black spots occupy 5%-15% of leaf area:

[0126] Level 3: gray-black spots occupy 15%-30% of the leaf area;

[0127] Grade 4: gray-black spots occupy 30%-45% of the leaf area;

[0128] Grade 5: gray-black spots occupy more than 45% of the leaf area;

[0129] Grade 6: gray-black spots occupy more than 45% of the leaf area, and gray-black spots appear on petioles and spread to the stem;

[0130] When grading tobacco plants that produce gra...

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Abstract

The invention discloses a flue-cured tobacco management and flue-curing method based on salicylic acid application to alleviate gray tobacco. The flue-cured tobacco management method includes the following steps: 1) a step of gray level identification and first spraying, namely a step of carrying out the gray tobacco level identification on tobacco plants with grey tobacco, classifying gray flue-cured tobacco disease levels into six grades, and carrying out the first spraying according to the grey tobacco levels; and 2) a step of tobacco leaf gray level re-identification and secondary spraying, namely a step of carrying out gray tobacco level identification again on the tobacco plants 10 to 20 days after the first spraying and carrying out the secondary spraying according to the gray tobacco level until the gray tobacco level does not exceed degrade 2. The method of the invention effectively alleviates the occurrence of gray tobacco in the field by determining the gray tobacco level ofan injured tobacco field and the application of salicylic acid. The method of the invention can effectively improve a health degree of tobacco leaves and a grade of tobacco leaves after flue-curing,and provides theoretical and technical support for controlling gray tobacco in the field.

Description

technical field [0001] The invention belongs to the technical field of tobacco cultivation, and in particular relates to a flue-cured tobacco management and curing method based on the application of salicylic acid to relieve gray smoke. Background technique [0002] In 2017, my country's flue-cured tobacco planting area reached 14.822 million mu, accounting for more than 20% of the world's total. Flue-cured tobacco planting and taxation are the main sources of income in some provinces in my country. The latest data shows that in 2017, the national tobacco tax revenue was 1.11451 trillion yuan, accounting for The national annual profits and taxes are about 7%. Therefore, the planting quality and quality of flue-cured tobacco products directly affect the economic income of tobacco farmers and the national fiscal revenue. In the actual production and planting of flue-cured tobacco, due to the influence of external factors (drought, salinity, heat, cold, freezing) comprehensive f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/10
CPCA24B3/10
Inventor 邹聪明张宇黄维赵高坤沈俊儒徐安传杨雪彪李军营宋鹏飞陈颐杨春江何军高德富靳双珍蔡永豪陈洁和健森任可
Owner YUNNAN ACAD OF TOBACCO AGRI SCI
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