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

A management method and salicylic acid technology, applied in the field of tobacco cultivation, can solve the problems of insignificant relief effect, time-consuming and labor-intensive, etc., and achieve the effects of inhibiting the further spread of the disease, being easy to operate, and improving the health level.

Active Publication Date: 2021-06-01
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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  • A flue-cured tobacco management and curing method based on salicylic acid application to alleviate gray smoke
  • A flue-cured tobacco management and curing method based on salicylic acid application to alleviate gray smoke
  • A flue-cured tobacco management and curing method based on salicylic acid application to alleviate gray smoke

Examples

Experimental program
Comparison scheme
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 level identification and one-time spraying: carry out level identification on the tobacco plants where gray smoke occurs, and divide the disease degree of gray flue-cured tobacco 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 occupying 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 occupy 30%-45% of the leaf area;

[0086] Grade 5: Gray black spots occupy 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;

[0088] W...

Embodiment 2

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

[0101] 1) Tobacco leaf gray level identification and one-time spraying: carry out level identification on the tobacco plants where gray smoke occurs, and divide the disease degree of gray flue-cured tobacco into six levels as follows:

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

[0103] Grade 1: sporadically distributed gray-black spots on the main vein or branch veins, not exceeding 5% of the leaf area;

[0104] Grade 2: Gray-black spots occupying 5%-15% of the leaf area:

[0105] Grade 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 the petiole and spread to the stem;

[0109] W...

Embodiment 3

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

[0122] 1) Tobacco leaf gray level identification and one-time spraying: carry out level identification on the tobacco plants where gray smoke occurs, and divide the disease degree of gray flue-cured tobacco into six levels as follows:

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

[0124] Grade 1: sporadically distributed gray-black spots on the main vein or branch veins, not exceeding 5% of the leaf area;

[0125] Grade 2: Gray-black spots occupying 5%-15% of the leaf area:

[0126] Grade 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 the petiole and spread to the stem;

[0130] W...

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Abstract

The invention discloses a flue-cured tobacco management and curing method based on the application of salicylic acid to alleviate gray smoke. The flue-cured tobacco management method includes the following steps: 1) gray level identification and one-time spraying: for tobacco plants with gray smoke Carry out the grade identification of gray tobacco, divide the disease degree of gray flue-cured tobacco into 6 grades; and spray once according to the grade of gray smoke; 2) re-identify the gray grade of tobacco leaves and spray again: firstly, 10~20 days after the first spray Tobacco strains are again identified for gray smoke grades, and sprayed twice according to the gray smoke grades until the gray smoke grades do not exceed grade 2. The method of the invention effectively alleviates the occurrence of gray smoke in the field through the determination of the ash level in the damaged tobacco field and the application of salicylic acid. The method of the invention can effectively improve the health degree of field tobacco leaves and the grade of cured tobacco leaves, and provides theoretical and technical support for preventing and treating gray smoke 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 has 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 1,114.51 billion yuan, accounting for more than 20% of the world's total. 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, salinit...

Claims

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Application Information

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Patent Type & Authority Patents(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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