Repairing method for frozen tobacco plants

A repair method and technology for tobacco plants, which are applied in fertilization methods, botanical equipment and methods, horticulture, etc., can solve problems such as increased plasma membrane permeability, agricultural production loss, and plant metabolic disorders, and achieve the promotion of stratification and yellowing. The effect of promoting rapid growth and ensuring economic benefits

Active Publication Date: 2018-01-30
YUNNAN ACAD OF TOBACCO AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In winter, when the large-scale cold air activity is particularly strong, it often brings severe freezing weather such as severe cooling, snow accumulation, freezing rain and frost, causing losses to agricultural production
Low-temperature freezing (freezing) damage causes a sudden increase in the permeability of the plasma membrane, causing the contents of the cells to leak out, causing metabolic disorders in the plant, and causing damage to the plant

Method used

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  • Repairing method for frozen tobacco plants
  • Repairing method for frozen tobacco plants
  • Repairing method for frozen tobacco plants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A method for repairing frost-damaged tobacco plants, comprising the following steps:

[0052] 1) Removal of disabilities: after the end of the freezing weather, immediately cut off the frostbitten and freezing-dead parts of the frost-damaged tobacco plants, and keep 5cm-high stems depending on the size of the tobacco plants, and ensure that each stem has 2 bud points;

[0053] The frost-damaged tobacco plants refer to the flue-cured tobacco plants whose aerial leaves of the tobacco plants have been severely frost-damaged due to the natural temperature ≤ 4°C for more than 3 consecutive days after being transplanted to the field, and even the top growth point has died. Severe freezing damage means that more than 50% of the leaves of the frozen leaves appear water-soaked. Described cutter is the sharp cutter except scissors. The variety of the tobacco strain is Yunyan 87.

[0054] 2) Bud selection and bud retention: 3 days after cleaning up the disabled, when the largest...

Embodiment 2

[0072] A method for repairing frost-damaged tobacco plants, comprising the following steps:

[0073] 1) Removal of disabilities: after the end of the freezing weather, immediately cut off the frostbitten and frozen parts of the frost-damaged tobacco plants, and keep 10cm-high stalks depending on the size of the tobacco plants, and ensure that each stalk has 3 bud points;

[0074] The frost-damaged tobacco plants refer to the flue-cured tobacco plants whose aerial leaves of the tobacco plants have been severely frost-damaged due to the natural temperature ≤ 4°C for more than 3 consecutive days after being transplanted to the field, and even the top growth point has died. Severe freezing damage means that more than 50% of the leaves of the frozen leaves appear water-soaked. Described cutter is the sharp cutter except scissors.

[0075] 2) Bud selection and bud retention: 5 days after cleaning up the disabled, when the largest leaf of the tobacco bud grows to 15cm, the work of b...

Embodiment 3

[0093] A method for repairing frost-damaged tobacco plants, comprising the following steps:

[0094] 1) Removal of disabilities: after the end of the freezing weather, immediately cut off the frostbitten and frozen parts of the frost-damaged tobacco plants, and keep 8cm-high stalks depending on the size of the tobacco plants, and ensure that each stalk has 3 bud points;

[0095] The above-mentioned freeze-damaged tobacco plants refer to flue-cured tobacco plants whose 3-4 above-ground leaves are seriously damaged by freezing due to the natural temperature ≤ 4°C for more than 3 consecutive days after being transplanted to the field, and even the top growth point has died. , the severe freezing damage refers to the appearance of water stains on more than 50% of the frozen leaves. Described cutter is the sharp cutter except scissors. The variety of the tobacco strain is Yunyan 87.

[0096] 2) Bud selection and bud retention: 4 days after cleaning up the disabled, when the large...

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Abstract

The invention discloses a repairing method for frozen tobacco plants. The repairing method comprises the following steps: 1) removing damaged plants; 2) selecting buds and keeping buds; 3) performingwater fertilizer and intertillage management: first topdressing; second topdressing; third topdressing; ridging and growth prompting; 4) performing disease control. By adopting the repairing method, field frozen tobacco plants can be well repaired and grow, the tobacco leaf yield can be up to 90 percent or more of normal tobacco leaf yield, and the production value can be 80 percent or more of thenormal tobacco leaf yield, thereby effectively ensuring the yield and quality of tobacco leaves, ensuring the economical benefit, and greatly reducing losses caused by freezing of tobacco. The frozentobacco is orange yellow in color, bright in color and luster, high in oil content, loose in leaf structure and proper in leaf thickness, and is basically the same as normal tobacco leaves after being repaired.

Description

technical field [0001] The invention belongs to the technical field of tobacco cultivation, and in particular relates to a method for repairing freeze-damaged tobacco plants. Background technique [0002] The influence of temperature on the growth of tobacco is very complicated. The temperature range required for growth is smaller than that required for photosynthesis, but stricter than that required for respiration. Both high temperature and low temperature will have a certain inhibitory effect on plant photosynthesis. In actual tobacco production, the external temperature is not always suitable for the growth of tobacco, and sometimes extreme temperatures are encountered, which have adverse effects on the growth and development of tobacco and the quality of tobacco leaves. After living in unfavorable temperature conditions for a short period of time, the photosynthesis of tobacco plants can return to the previous level when they return to favorable conditions; Under suit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00A01G22/00A01G13/00
Inventor 杨雪彪屈生彬李天福贺晓辉张晓海宁德凯飞鸿宋玉川程建勇李光西杨世波吴贵成唐旭兵霍玉昌吴会平李自相殷端杨春江王亚辉
Owner YUNNAN ACAD OF TOBACCO AGRI SCI
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