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Cultivation method capable of preventing and controlling heat-forced maturity of flue-cured tobacco

A cultivation method and high-temperature technology, applied in the cultivation field of preventing and controlling high-temperature forced ripening of flue-cured tobacco

Inactive Publication Date: 2017-09-15
ZHENGZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there is no specific cultivation method to prevent and control the high temperature forced ripening of flue-cured tobacco, especially the combination of prevention and control measures

Method used

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  • Cultivation method capable of preventing and controlling heat-forced maturity of flue-cured tobacco
  • Cultivation method capable of preventing and controlling heat-forced maturity of flue-cured tobacco

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Before the tobacco seedlings are transplanted, mechanical powder ridges are used, and the ridge height is 45cm; when transplanting, the hole soil is fully loosened and expanded, and natural peat is applied in the hole, and the application rate of natural peat is 50g (natural dry weight) / plant; mix the natural peat with the hole soil in the horizontal range of about 15cm (radius) around the root system evenly, and the depth range is 15cm; cover the plastic film after transplanting, remove the plastic film after the tobacco plant cluster stage, and cover the straw, and the thickness of the straw covering is 3cm; In the later stage of tobacco plant growth, 5 parts by weight of putrescine hydrochloride, 5 parts of sodium nitroprusside, and 30 parts of sodium sulfite are evenly mixed and dissolved in water to obtain a dilution of the control agent, wherein the high-temperature forced ripening of flue-cured tobacco prevents and controls The mass ratio of agent and water is 1:...

Embodiment 2

[0035] Before the tobacco seedlings are transplanted, mechanical powder ridges are used, and the height of the ridges is 40cm; when transplanting, the hole soil is fully loosened and expanded, and natural peat is applied in the holes, and the application rate of natural peat is 30g (natural dry weight) / plant; mix the natural peat with the hole soil in the horizontal range of about 15cm (radius) around the root system, and the depth range is 10cm; cover the plastic film after transplanting, remove the plastic film after the tobacco plant group stage, and cover the straw, the thickness of the straw covering is 5cm; In the later stage of tobacco plant growth, 1 part of putrescine, 10 parts of sodium nitroprusside, and 5 parts of sodium sulfite calculated in parts by weight are evenly mixed and dissolved in water to obtain a dilution of the control agent, wherein the high-temperature ripening control agent for flue-cured tobacco is mixed with water The mass ratio of the control ag...

Embodiment 3

[0037] Before the tobacco seedlings are transplanted, mechanical powder ridges are used, and the height of the ridges is 50cm; when transplanting, the hole soil is fully loosened and expanded, and artificial peat is applied in the holes, and the application rate of artificial peat is 100g (natural dry weight) / plant; mix the artificial peat with the hole soil in the horizontal range of about 20cm (radius) around the root system, and the depth range is 20cm; cover the plastic film after transplanting, remove the plastic film after the tobacco plant group stage, and cover the straw, and the thickness of the straw covering is 3cm; In the later stage of tobacco plant growth, 10 parts by weight of putrescine, 1 part of sodium nitroprusside, and 2 parts of sodium sulfite are evenly mixed and dissolved in water to obtain a dilution of the control agent, wherein the high-temperature ripening control agent for flue-cured tobacco is mixed with water The mass ratio of the control agent is...

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Abstract

The invention relates to a cultivation method capable of preventing and controlling the heat-forced maturity of flue-cured tobacco. The method comprises the combined cultivation steps that firstly, high ridging is combined with smash ridging; secondly, tobacco transplanting is conducted; thirdly, double covering is conducted; fourthly, a heat-forced maturity prevention and control agent is sprayed in the later growth period of tobacco plants, wherein the heat-forced maturity prevention and control agent comprises polyamine, sodium nitroprusside and sodium sulfite; fifthly, in the mature period, the relative water content of soil is kept to 60-80%. By means of the heat-forced maturity prevention and control method of the flue-cured tobacco, the development of root systems of the tobacco plants can be promoted, the premature senescence of the root systems is prevented, the respiration and the water desorption of leaves are fully inhibited, and a high photosynthetic rate of the tobacco leaves is maintained; meanwhile, the physiological metabolism activity and the stress resistance of the later tobacco plants are enhanced, and the chemical component coordination of the tobacco leaves is improved. According to the tobacco plants cultivated through the heat-forced maturity prevention and control method of the flue-cured tobacco, the phenomena of premature senescence, albino, burns and brown spot are mitigated obviously, the physiological indexes and the quality indexes are remarkably improved, the phenomenon of heat-forced maturity of the flue-cured tobacco can be effectively prevented and controlled, and the quality of the tobacco leaves is improved.

Description

technical field [0001] The invention relates to the field of tobacco cultivation, in particular to a cultivation method for preventing and controlling high-temperature forced ripening of flue-cured tobacco. Background technique [0002] Tobacco is a plant that is very sensitive to changes in environmental conditions. Ecological factors have a greater impact on the yield and quality of tobacco leaves. Among them, climate factors are the main ecological factors that create high-quality and characteristic tobacco leaves. Studies have shown that compared with foreign high-quality tobacco leaf production areas, the meteorological conditions of flue-cured tobacco in my country during the field growth period are mainly manifested in: relatively insufficient sunshine; relatively low temperature in the early stage, and relatively high temperature in the later stage. This phenomenon is particularly prominent in the central and southern smoking areas of my country. [0003] The Nanlin...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01B79/02A01G13/02A01G25/00A01N59/16A01N33/04A01N59/02A01P21/00
CPCA01B79/02A01G13/0256A01G25/00A01N33/04A01N59/02A01N59/16A01N2300/00Y02P60/20
Inventor 朱大恒朱润琪莫骏坚肖春生汪耀富席宇岳彩鹏马轩陈辰申永防王子腾张闪闪刘丽叶晓婉彭曙光李宏光李伟肖艳松单雪华范才银陈治锋
Owner ZHENGZHOU UNIV
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