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

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

Inactive Publication Date: 2017-10-13
CHINA TOBACCO CENTRAL SOUTH AGRICULTURAL EXPERIMENTAL STATION +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 for preventing and controlling heat-forced maturity of flue-cured tobacco
  • Cultivation method for preventing and controlling heat-forced maturity of flue-cured tobacco

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 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, 100 parts of calcium chloride and 200 parts of potassium dihydrogen phosphate are evenly mixed and dissolved in water to obtain the dilution of the preventive and control agent. Wherein the mass ratio of the flue-cured tobacco high-temperatur...

Embodiment 2

[0036] 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, 5 parts by weight of putrescine, 5 parts of sodium nitroprusside, 150 parts of calcium chloride and 300 parts of potassium dihydrogen phosphate are evenly mixed and dissolved in water to obtain a dilution of the preventive and control agent, wherein the The mass ratio of flue-cured tobacco high temperature ripening preventio...

Embodiment 3

[0038] 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, 1 part of spermine, 10 parts of sodium nitroprusside, 50 parts of calcium chloride and 100 parts of potassium dihydrogen phosphate calculated in parts by weight are evenly mixed and dissolved in water to obtain a dilution of the preventive and control agent, wherein the The mass ratio of flue-cured tobacco high...

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Abstract

The invention relates to a cultivation method for preventing and controlling heat-forced maturity of flue-cured tobacco. The method comprises the following steps that firstly, high ridging is combined with deep rotary tillage; secondly, tobacco is transplanted; thirdly, double coverage is carried out; fourthly, a heat-forced maturity prevention and control agent is sprayed in the later growth stage of tobacco plants, wherein the heat-forced maturity prevention and control agent comprises polyamine, sodium nitroprusside, calcium chloride and monopotassium phosphate; fifthly, the relative water content of soil in the mature period is kept to be 60-80%. By means of the method for preventing and controlling heat-forced maturity of the flue-cured tobacco, development of root systems of the tobacco plants can be effectively promoted, early senility of the root systems is prevented, the respiration effect and water dispersion loss of tobacco leaves are fully inhibited, and the high photosynthetic rate of the tobacco leaves is maintained; meanwhile, the physiological metabolism activity and stress resistance of the tobacco plants in the later period are enhanced, and coordination of chemical components of the tobacco leaves is improved; according to the tobacco plants cultivated through the method, the early senility, whitening, burning and brown spot phenomena of the tobacco leaves in the field are obviously reduced, physiological and quality indexes are obviously improved, the application effect is remarkable, the heat-forced maturity of the flue-cured tobacco can be effectively prevented and controlled, and the quality of the tobacco leaves can be 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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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01G7/06A01B79/02A01G25/00A01G13/02A01N59/26A01N59/06A01N59/16A01N33/04A01P21/00
CPCA01G7/06A01B79/02A01G13/0262A01G13/0275A01G25/00A01N33/04A01N59/06A01N59/16A01N59/26
Inventor 曹志辉肖春生朱大恒朱润琪汪耀富彭曙光李宏光李伟杨红武陈治锋肖艳松单雪华范才银杨增光王子腾张闪闪马轩陈辰莫骏坚申永防
Owner CHINA TOBACCO CENTRAL SOUTH AGRICULTURAL EXPERIMENTAL STATION
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