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Regulator and method for reducing nitrate accumulation in burley tobacco

A nitrate, burley tobacco technology, applied in plant growth regulators, plant growth regulators, chemicals for biological control, etc. It is suitable for burley tobacco and other problems to achieve the effect of reducing nitrate accumulation, promoting carbon skeleton synthesis and improving photosynthesis

Inactive Publication Date: 2019-07-05
HENAN AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, some tobacco growing areas in my country have reduced the accumulation of nitrate in tobacco leaves by adjusting the amount of nitrogen fertilizer or the form of nitrogen, increasing the application of phosphorus fertilizers, and applying hormones. However, for Burley tobacco, Burley tobacco has a high nitrogen demand. and low nitrogen use efficiency, therefore, the existing method of adjusting the amount of nitrogen fertilizer is not suitable for Burley tobacco

Method used

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  • Regulator and method for reducing nitrate accumulation in burley tobacco

Examples

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Effect test

Embodiment 1

[0035] A regulator for reducing nitrate accumulation in Burley tobacco, the weight percent of each component is: glycerol 0.1%; auxin 0.0005%; sodium molybdate 0.1%; chitosan oligosaccharide 0.01%, and the balance is water. The auxin is indole acetic acid.

[0036] A method for reducing nitrate accumulation in burley tobacco by utilizing the above-mentioned regulator, wherein: comprising the following process steps:

[0037] a. Configuration regulator:

[0038] Weigh glycerol 0.1% by weight percentage; Auxin 0.0005%; Sodium molybdate 0.1%; Chitooligosaccharide 0.01%, and mix the weighed components with water;

[0039] B, in the cluster period of tobacco leaf growth, spray the regulator that configures to tobacco plant;

[0040] The grouping period of the tobacco leaf growth is 25-30 days after the tobacco seedlings are transplanted into the field. When spraying the regulator on the tobacco plants during the grouping period, it is sprayed at 5 o'clock in the afternoon on a s...

Embodiment 2

[0046] Repeat Example 1, with the following differences: a regulator for reducing nitrate accumulation in burley tobacco, the percentage by weight of each component is: glycerol 1%; auxin 0.001%; ​​sodium molybdate 1% ; Chitosan oligosaccharide 0.015%, the balance is water. The auxin is indole acetic acid.

Embodiment 3

[0048] Repeat Example 1, with the following differences: a regulator for reducing nitrate accumulation in Burley tobacco, the percentage by weight of each component is: glycerol 2%; auxin 0.002%; sodium molybdate 2% ; Chitosan oligosaccharide 0.02%, the balance is water. The auxin is indole acetic acid.

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Abstract

The invention relates to a regulator and method for reducing nitrate accumulation in burleys. The regulator includes, by weight, 0.1-2% of glycerin, 0.0005-0.002% of auxin, 0.1-2% of sodium molybdateand 0.01-0.02% of chitosan oligosaccharide, with the balance being water. The regulator is sprayed to burley tobacco plants in the resettling stage, the vigorous growth stage and the mature stage respectively. Through the glycerin and the chitosan oligosaccharide, the regulator enhances carbon fixation capability of the burley tobacco, promotes carbon skeleton synthesis, and improves photosynthesis of leaves and nitrate reductase activity; through the sodium molybdate, nitrogen reduction and assimilation capability is improved; and through the auxin, burley cell division and cell increase arepromoted, thus achieving the purpose of reducing nitrate accumulation in burley tobacco and finally achieving the purpose of reducing the nitrosamine content in tobacco leaves.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of improving tobacco quality and reducing tobacco damage to human health, and in particular relates to a regulator for reducing nitrate accumulation in burley tobacco and a method thereof. [0003] Background technique: [0004] Tobacco-specific nitrosamines (TSNA) mainly include N-nitrosonornicotine (NNN), 4-(N-methyl-nitrosamine)-1-(3-pyridyl)-1-butanone (NNK), N-nitrosoanatabine (NAT) and N-nitroso anatabine (NAB), which have been confirmed to be associated with tumors in the lung, oral cavity, esophagus, pancreas, liver, etc. produce related. [0005] Many studies have shown that there is almost no TSNA in fresh tobacco leaves, and its formation and accumulation are mainly during the conditioning and storage of tobacco. Nitrate is the precursor of tobacco-specific nitrosamines, and its content level is an important indicator of TSNAs accumulation. Nitrate nitrogen is the main form of nitrogen a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N31/02A01N43/16A01N59/00A01N43/38A01P21/00A01G7/06A01G22/45
CPCA01G7/06A01G22/45A01N31/02A01N43/16A01N43/38A01N59/00
Inventor 史宏志冯雨晴杨惠娟段卫东王景
Owner HENAN AGRICULTURAL UNIVERSITY
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