Method for managing and curing flue-cured tobacco to alleviate chilling injury of tobacco based on salicylic acid application

A management method and technology of salicylic acid are applied in the field of tobacco cultivation and achieve the effects of simple operation, low cost and high yield

Active Publication Date: 2019-01-18
YUNNAN ACAD OF TOBACCO AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem of chilling injury smoke occurring in the field tobacco production process, the first purpose of the present invention is to provide a flue-cured tobacco management method based on s...

Method used

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  • Method for managing and curing flue-cured tobacco to alleviate chilling injury of tobacco based on salicylic acid application
  • Method for managing and curing flue-cured tobacco to alleviate chilling injury of tobacco based on salicylic acid application
  • Method for managing and curing flue-cured tobacco to alleviate chilling injury of tobacco based on salicylic acid application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] A flue-cured tobacco management method based on salicylic acid application to alleviate cold injury tobacco, comprising the following steps:

[0065] 1) Prevention of chilling smoke: according to the weather conditions, spray salicylic acid solution on the tobacco plants that have not yet suffered chilling to prevent chilling smoke; specifically, according to the local weather forecast, the temperature drop is divided into three levels as follows:

[0066] Level 1: The temperature drops by 6 degrees per night;

[0067] Level 2: temperature drops 8-degrees / night;

[0068] Level 3: The temperature drops by 10 degrees per night;

[0069] When the temperature drops to grade 1, the spraying amount of salicylic acid solution is 8mmol L -1 ;

[0070] When the temperature drops to level 2, the spraying amount of salicylic acid solution is 13mmol L -1 ;

[0071] When the temperature drops to level 3, the spraying amount of salicylic acid solution is 17mmol L -1 ;

[0072]...

Embodiment 2

[0082] A flue-cured tobacco management method based on salicylic acid application to alleviate cold injury tobacco, comprising the following steps:

[0083] 1) Prevention of chilling smoke: according to the weather conditions, spray salicylic acid solution on the tobacco plants that have not yet suffered chilling to prevent chilling smoke; specifically, according to the local weather forecast, the temperature drop is divided into three levels as follows:

[0084] Level 1: The temperature drops by 8 degrees per night;

[0085] Level 2: The temperature drops by 10 degrees per night;

[0086] Level 3: The temperature drops by 12 degrees per night;

[0087] When the temperature drops to level 1, the spraying amount of salicylic acid solution is 13mmol L -1 ;

[0088] When the temperature drops to level 2, the spraying amount of salicylic acid solution is 17mmol L -1 ;

[0089] When the temperature drops to level 3, the spraying amount of salicylic acid solution is 23mmol L -1 ...

Embodiment 3

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

[0101] 1) Prevention of chilling smoke: according to the weather conditions, spray salicylic acid solution on the tobacco plants that have not yet suffered chilling to prevent chilling smoke; specifically, according to the local weather forecast, the temperature drop is divided into three levels as follows:

[0102] Level 1: The temperature drops by 7 degrees per night;

[0103] Level 2: The temperature drops by 9 degrees per night;

[0104] Level 3: The temperature drops by 11 degrees per night;

[0105] When the temperature drops to level 1, the spraying amount of salicylic acid solution is 10mmol L -1 ;

[0106] When the temperature drops to level 2, the spraying amount of salicylic acid solution is 15mmol L -1 ;

[0107] When the temperature drops to level 3, the spraying amount of salicylic acid solution is 20mmol L -1...

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Abstract

The invention discloses a method for managing and curing flue-cured tobacco to alleviate chilling injury of tobacco based on salicylic acid application. The flue-cured tobacco management method comprises the following steps: 1) prevention of chilling injury of tobacco: according to weather conditions, spraying salicylic acid solution to prevent chilling injury of tobacco plant which has not occurred chilling injury; 2) grade identification and primary spray of chilling injury tobacco: grade identification of chilling injury tobacco plant is carried out, and that disease degree of chilling injury tobacco is divide into three grades; And spraying once according to the grade of chilling injury tobacco; 3) re-identification and secondary spray of chilling injury tobacco grade: firstly, re-identification and secondary spray of chilling injury tobacco grade are carried out on that tobacco plant 10-20 days aft the primary spraying, and the chilling injury tobacco grade is not more than 1 grade, so that the chilling injury tobacco grade is not more than 1 grade. The invention sprays salicylic acid solution with suitable concentration to alleviate the damage degree according to the identification of chilling injury tobacco of different damage grades, and solves the problem of occurrence of field chilling injury tobacco caused by factors such as sudden drop of ambient temperature, too low temperature, too high soil humidity, too low soil temperature and the like 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 alleviate chilling damage. Background technique [0002] China is a big tobacco leaf producing country in the world and provides abundant raw materials for the world's flue-cured tobacco production. So far, the planting area of ​​flue-cured tobacco in my country has reached 14.82 million mu, accounting for more than 20% of the world's total. Flue-cured tobacco is an important source of income for some provinces in my country and has made a huge contribution to my country's tax revenue. According to the latest report, my country's 2017 tobacco tax accounted for about 7% of the national profits and taxes, amounting to as high as 1114.51 billion yuan. [0003] In the actual production and planting of flue-cured tobacco, due to the influence of low temperature, soi...

Claims

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Application Information

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IPC IPC(8): A24B3/10A24B3/04A24B1/02
CPCA24B1/02A24B3/04A24B3/10
Inventor 邹聪明蔺忠龙黄维蔡永豪陈洁陈颐赵高坤李天福胡小东苏家恩徐鸿飞李宝乐王津军杨玉坤任可李军营李文标
Owner YUNNAN ACAD OF TOBACCO AGRI SCI
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