CN102807444B - Nicotine-reducing potassium-increasing agent for cured tobacco and application method thereof - Google Patents
Nicotine-reducing potassium-increasing agent for cured tobacco and application method thereof Download PDFInfo
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- CN102807444B CN102807444B CN201210314689.6A CN201210314689A CN102807444B CN 102807444 B CN102807444 B CN 102807444B CN 201210314689 A CN201210314689 A CN 201210314689A CN 102807444 B CN102807444 B CN 102807444B
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Abstract
The invention discloses a nicotine-reducing potassium-increasing agent for cured tobacco and an application method thereof. The nicotine-reducing potassium-increasing agent for cured tobacco is composed of the components by weight: 0.2-3% of arginine, 0.3-7% of methionine, 2-7% of sodium silicomolybdate, 2-10% of P2O5, 2-9% of K2O, 0.01-1% of EDDHA (ethylenediamine di-2-hydroxyphenyl acetic acid)-Fe, 0.01-3% of EDTA (ethylenediamine tetraacetic acid)-Zn, 0.01-2% of EDTA-Mn, 0-2% of rapin lactone, 0-15% of sulfosalicylic acid, 0.1-10% of salicylic acid and the balance of water. A nicotine-reducing potassium-increasing composition for cured tobacco contains at least one of rapin lactone or 5-sulfosalicylic acid. According to the nicotine-reducing potassium-increasing agent for cured tobacco, nutritive elements, microelements for helping plants to absorb the nutritive elements and plant growth regulators for regulating plant growth are reasonably mixed, so that the element absorption and distribution of the tobacco are more balanced, the nicotine content of the cured tobacco is reduced, the potassium content of the cured tobacco is increased, the contents and ratio of nicotine and potassium in the cured tobacco conform to the requirements of high-quality cured tobacco, and the yield and quality of tobacco leaf are improved.
Description
Technical field
The invention belongs to plant-growth regulator technical field, be specifically related to a kind of nicotine decreasing and potassium elevating preparation of fire-cured tobacco and using method thereof.
Background technology
Tobacco is that leaf is used cash crop, high especially to the quality requirements of tobacco leaf.At present because rate of fertilizer application is on the high side, there is the problems such as total quality is on the low side, perfume quantity is not enough, fragrance concentration is inadequate, nicotine is higher, starch content is higher, poor availability in current China tobacco leaf, especially during cured tobacco leaf is produced, nicotine content of tobacco leaves is higher, Potassium Content in Flue-cured Tobacco Leaves deficiency, has affected the operability of tobacco leaf.The quality of this tobacco leaf has had influence on production and the outlet of China's high-quality cigarette, also makes tobacco grower's economic interests suffer damage.The means that change at present this situation mainly adopt minimizing rate of fertilizer application, can affect again the output of tobacco leaf but reduce rate of fertilizer application; Also having a kind of means is to spray single plant-growth regulator, but to realize the DeGrain that falls alkali increasing potassium simultaneously.Liu Huashan etc. have applied for " nicotine decreasing and potassium elevating preparation of fire-cured tobacco " (CN200710189651.X), and its main component is propanedioic acid, Tripotassium Citrate and plant-growth regulator IAA, GA3 and 2,4-D.But it regulates the effect of the absorption that reduces nicotine content, increases potassium element limited.
Lack be at present applicable to flue-cured tobacco both can fall alkali increase potassium, make nicotine and potassium content and ratio in flue-cured tobacco more meet the requirement of high-quality tobacco, can effectively ensure again yield of tobacco overall technical architecture.
Summary of the invention
The object of the invention is to overcome the deficiency that potassium technology is fallen alkali and increase in existing flue-cured tobacco, a kind of new nicotine decreasing and potassium elevating preparation of fire-cured tobacco is provided, described nicotine decreasing and potassium elevating preparation of fire-cured tobacco by nutritive element, help the trace element of Plant To Nutrient element absorption and the plant-growth regulator of coordinate plant growth carries out rational mixture, ensure tobacco to the absorption of element and distribute more balance, reduce Flue-cured Tobacco alkali content, improve flue-cured tobacco potassium content, make nicotine and potassium content and ratio in flue-cured tobacco more meet the requirement of high-quality tobacco, improved yield of tobacco and quality.
Another object of the present invention is to provide the using method of described nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
Above-mentioned purpose of the present invention is achieved by following technical solution:
A kind of nicotine decreasing and potassium elevating preparation of fire-cured tobacco is provided, and the component of being calculated by following percentage ratio by weight forms:
Arginine 0.2 ~ 3%; Methionine(Met) 0.3 ~ 7%; Silicomolybdic acid sodium 2 ~ 7%; P
2o
52 ~ 10%; K
2o 2 ~ 9%; EDDHA-Fe 0.01 ~ 1%; EDTA-Zn 0.01 ~ 3%; EDTA-Mn 0.01 ~ 2%; Brassinolide 0 ~ 2%; 5-sulphosalicylic acid 0 ~ 15%, Whitfield's ointment 0.1 ~ 10%, surplus is water; And described flue-cured tobacco falls alkali and increases in potassium composition, contains at least one in brassinolide or 5-sulphosalicylic acid.
Comprehensive cost and fall alkali and increase potassium effect, as a kind of preferred version, the component that described nicotine decreasing and potassium elevating preparation of fire-cured tobacco is preferably calculated by following percentage ratio by weight: arginine 1 ~ 2%; Methionine(Met) 2 ~ 3%; Silicomolybdic acid sodium 3 ~ 5%; P
2o
54 ~ 8%; K
2o 4 ~ 7%; EDDHA-Fe 0.03 ~ 0.07%; EDTA-Zn 0.05 ~ 1%; EDTA-Mn 0.04 ~ 1%; Brassinolide 0.05 ~ 0.8%; 5-sulphosalicylic acid 5 ~ 12%, Whitfield's ointment 0.3 ~ 6%, surplus is water; And described flue-cured tobacco falls alkali and increases in potassium composition, contains at least one in brassinolide or 5-sulphosalicylic acid.
In the formula of nicotine decreasing and potassium elevating preparation of fire-cured tobacco, this two seed amino acid of arginine and methionine(Met) can evoking tobacco root growth in formula, increases the absorption of tobacco to nutritive element, improves yield of tobacco; EDDHA-Fe, EDTA-Zn, EDTA-Mn are the conventional metal organic chelate in this area, EDDHA-Fe is EDDHA molysite, be written as again EDDHA-FeNa, it is the large acetic acid ferrisodium of quadrol two salicyl, EDTA-Zn is ethylenediamine tetraacetic acid (EDTA) zinc salt, comprise ethylenediamine tetraacetic acid (EDTA) zinc sodium salt and ethylenediamine tetraacetic acid (EDTA) zinc ammonium salt, the preferred ethylenediamine tetraacetic acid (EDTA) zinc of the present invention ammonium salt, EDTA-Mn is ethylenediamine tetraacetic acid (EDTA) manganese sodium salt.These metal organic chelates, are more conducive to tobacco and absorb, and these materials belong to trace element in plant materials, can conditioning tobacco to Nutrient Absorption, regulate element balance, and can strengthen the object of tobacco disease resistance insect pest.Brassinolide and 5-sulphosalicylic acid belong to plant-growth regulator, and biosynthesizing that can conditioning tobacco secondary metabolite nicotine reduces nicotine content.
Contriver finds simultaneously, if directly metal organic chelate is added in formula, its less stable, easily forms Precipitation; In order to improve the stability of the metal organic chelate in formula, need in formula, add appropriate Whitfield's ointment, make the pH value of final nicotine decreasing and potassium elevating preparation of fire-cured tobacco be adjusted to 5 ~ 5.5 scope.Through the adjustment of formula, metal organic chelate can stably be present in described nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
The present invention provides described formula by research, by reasonable compatibility and the proportioning of each component in formula, makes described nicotine decreasing and potassium elevating preparation of fire-cured tobacco can rationally, effectively reduce nicotine content, increases potassium content, obviously improves yield of tobacco and Flue-cured tobacco Quality.
The preparation method of described nicotine decreasing and potassium elevating preparation of fire-cured tobacco is, first adopts suitable quantity of water by after other component mixed dissolutions except Whitfield's ointment, then adds Whitfield's ointment, and then water is mended to 100%.
The using method of described nicotine decreasing and potassium elevating preparation of fire-cured tobacco is diluted 1000 times～1000 times, obtains the nicotine decreasing and potassium elevating preparation of fire-cured tobacco aqueous solution, pinches and within second day, sprays cigarette strain in flue-cured tobacco, and every mu of vega amount of spraying is 40～50 kilograms of described nicotine decreasing and potassium elevating preparation of fire-cured tobacco aqueous solution.
Compared with prior art, the present invention has following beneficial effect:
Nicotine decreasing and potassium elevating preparation of fire-cured tobacco of the present invention by nutritive element, help the trace element of Plant To Nutrient element absorption and the plant-growth regulator of coordinate plant growth carries out rational mixture, obtain beyond thought effect, reduce Flue-cured Tobacco alkali content, improve flue-cured tobacco potassium content, make nicotine and potassium content and ratio in flue-cured tobacco more meet the requirement of high-quality tobacco, prove that the present composition has ensured that tobacco is more balanced with distribution to the absorption of element, can effectively improve yield of tobacco and quality;
In formula, adopt Whitfield's ointment to regulate the pH value of nicotine decreasing and potassium elevating preparation of fire-cured tobacco, made metal organic chelate in system, there is satisfactory stability, do not affected use.
Embodiment
Further illustrate the present invention below in conjunction with specific embodiment, but embodiment does not do any type of restriction to the present invention.In embodiment, unless stated otherwise, related various materials are the conventional material in this area, all can obtain by purchase.
Described EDDHA-Fe is the large acetic acid ferrisodium of quadrol two salicyl, and described EDTA-Zn is ethylenediamine tetraacetic acid (EDTA) zinc ammonium salt, and described EDTA-Mn is ethylenediamine tetraacetic acid (EDTA) manganese sodium salt.
embodiment 1
Get arginine 0.2 g, methionine(Met) 0.3 g, silicomolybdic acid sodium is 2 g, P
2o
52 g, K
2o 2 g, EDDHA-Fe 0.01 g, EDTA-Zn 0.01g, EDTA-Mn 0.01 g, brassinolide 0.01 g, Whitfield's ointment 1 g, is dissolved in above-mentioned composition in 15 g water, makes whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
embodiment 2
Get arginine 0.2 g, methionine(Met) 0.3 g, silicomolybdic acid sodium is 2 g, P
2o
52 g, K
2o 2 g, EDDHA-Fe 0.01 g, EDTA-Zn 0.01 g, EDTA-Mn 0.01 g, 5-sulphosalicylic acid 1 g, Whitfield's ointment 1 g, is dissolved in above-mentioned composition in 15 g water, makes whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
embodiment 3
Get arginine 0.2 g, methionine(Met) 0.3 g, silicomolybdic acid sodium is 2 g, P
2o
52 g, K
2o 2 g, EDDHA-Fe 0.01 g, EDTA-Zn 0.01 g, EDTA-Mn 0.01 g, brassinolide 0.01 g, 5-sulphosalicylic acid 1 g, Whitfield's ointment 1 g, above-mentioned composition is dissolved in 15 g water, makes whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
embodiment 4
Get arginine 1 g, methionine(Met) 2 g, silicomolybdic acid sodium is 3 g, P
2o
54 g, K
2o 4 g, EDDHA-Fe 0.03 g, EDTA-Zn 0.05g, EDTA-Mn 0.04 g, brassinolide 0.05 g, Whitfield's ointment 6 g, are dissolved in above-mentioned composition in 20g water, make whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
embodiment 5
Get arginine 1 g, methionine(Met) 2 g, silicomolybdic acid sodium is 3 g, P
2o
54 g, K
2o 4 g, EDDHA-Fe 0.03 g, EDTA-Zn 0.05g, EDTA-Mn 0.04 g, 5-sulphosalicylic acid 5 g, Whitfield's ointment 0.5g, is dissolved in above-mentioned composition in 30 g water, makes whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
embodiment 6
Get arginine 1 g, methionine(Met) 2 g, silicomolybdic acid sodium is 3 g, P
2o
54 g, K
2o 4 g, EDDHA-Fe 0.03 g, EDTA-Zn 0.05g, EDTA-Mn 0.04 g, brassinolide 0.05 g, 5-sulphosalicylic acid 5 g, Whitfield's ointment 0.5 g, above-mentioned composition is dissolved in 30g water, makes whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
embodiment 7
get arginase 12 g, methionine(Met) 3 g, silicomolybdic acid sodium is 5 g, P
2o
58 g, K
2o 7 g, EDDHA-Fe 0.07 g, EDTA-Zn 1 g, EDTA-Mn 1 g, brassinolide 0.8 g, Whitfield's ointment 5 g, are dissolved in above-mentioned composition in 50 g water, make whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
embodiment 8
Get arginase 12 g, methionine(Met) 3 g, silicomolybdic acid sodium is 5 g, P
2o
58 g, K
2o 7 g, EDDHA-Fe 0.07 g, EDTA-Zn 1 g, EDTA-Mn 1 g, 5-sulphosalicylic acid 12 g, Whitfield's ointment 0.5 g, is dissolved in above-mentioned composition in 60 g water, makes whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
embodiment 9
Get arginase 12 g, methionine(Met) 3 g, silicomolybdic acid sodium is 5 g, P
2o
58 g, K
2o 7 g, EDDHA-Fe 0.07 g, EDTA-Zn 1 g, EDTA-Mn 1 g, brassinolide 0.8 g, 5-sulphosalicylic acid 12 g, Whitfield's ointment 0.3 g, above-mentioned composition is dissolved in 60g water, makes whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
embodiment 10
Get arginine 3 g, methionine(Met) 7 g, silicomolybdic acid sodium is 7 g, P
2o
510 g, K
2o 9 g, EDDHA-Fe 1 g, EDTA-Zn 3 g, EDTA-Mn 2 g, brassinolide 2 g, Whitfield's ointment 10 g, are dissolved in above-mentioned composition in 80 g water, make whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
embodiment 11
Get arginine 3 g, methionine(Met) 7 g, silicomolybdic acid sodium is 7 g, P
2o
510 g, K
2o 9 g, EDDHA-Fe 1 g, EDTA-Zn 3 g, EDTA-Mn 2 g, 5-sulphosalicylic acid 15 g, Whitfield's ointment 0.2 g, is dissolved in above-mentioned composition in 80 g water, makes whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
embodiment 12
Get arginine 3 g, methionine(Met) 7 g, silicomolybdic acid sodium is 7 g, P
2o
510 g, K
2o 9 g, EDDHA-Fe 1 g, EDTA-Zn 3 g, EDTA-Mn 2 g, brassinolide 2 g, 5-sulphosalicylic acid 15 g, Whitfield's ointment 0.1 g, is dissolved in above-mentioned composition in 80 g water, makes whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
embodiment 13
Above-described embodiment 1～12 nicotine decreasing and potassium elevating preparation of fire-cured tobacco sample is watered after dilution according to the multiple of dilution described in table 1, pinches and spray for second day in flue-cured tobacco, it is 40～50 kg water that every mu of vega sprays water gaging amount, and in the time of tobacco leaf picking, 3 strains are got in each processing.Whole blades of every strain are cleaned, blot surface-moisture with gauze, remove middle arteries and veins, 105 DEG C of 15min that complete, dry to constant weight for 60 DEG C, pulverize, cross 40 mesh sieves, gained sample is used for measuring tobacco leaf nicotine and potassium content (potassium content adopts flare photometer, and nicotine content adopts optically-active light-intensity method), and remaining sample is used for measuring yield of tobacco.Experimental results is in table 1:
Table 1
| Process | Extension rate | Nicotine (%) | Nicotine content changes (%) | Potassium (%) | Potassium content changes (%) | Output (kg/hm 2） | Volume increase (%) |
| Embodiment 1 | 1000 | 3.05 | -13.11 | 2.16 | 18.68 | 2113 | 7.97 |
| Embodiment 2 | 1000 | 3.11 | -11.40 | 2.03 | 11.54 | 2015 | 2.96 |
| Embodiment 3 | 1000 | 2.93 | -16.52 | 2.51 | 37.91 | 2317 | 18.40 |
| Embodiment 4 | 2000 | 2.81 | -19.94 | 2.64 | 45.05 | 2461 | 25.75 |
| Embodiment 5 | 2000 | 2.95 | -15.95 | 2.42 | 32.97 | 2353 | 20.24 |
| Embodiment 6 | 2000 | 2.62 | -25.36 | 2.71 | 48.90 | 2593 | 32.50 |
| Embodiment 7 | 4000 | 2.58 | -26.50 | 2.93 | 60.99 | 2561 | 30.86 |
| Embodiment 8 | 4000 | 2.63 | -25.07 | 2.83 | 55.49 | 2487 | 27.08 |
| Embodiment 9 | 4000 | 2.31 | -34.19 | 3.05 | 67.58 | 2641 | 34.95 |
| Embodiment 10 | 10000 | 2.27 | -35.33 | 3.27 | 79.67 | 2617 | 33.73 |
| Embodiment 11 | 10000 | 2.33 | -33.62 | 3.12 | 71.43 | 2594 | 32.55 |
| Embodiment 12 | 10000 | 2.01 | -42.74 | 3.38 | 85.71 | 2698 | 37.86 |
| CK | Clear water | 3.51 | ? | 1.82 | ? | 1957 | ? |
As can be seen from Table 1, the nicotine content of processing flue-cured tobacco through nicotine decreasing and potassium elevating preparation of fire-cured tobacco of the present invention significantly decreases, and the potassium content of flue-cured tobacco obviously increases, and described nicotine decreasing and potassium elevating preparation of fire-cured tobacco can reduce the nicotine content of flue-cured tobacco, can increase again the content of potassium in flue-cured tobacco.Can also put forward the object that reaches volume increase simultaneously.Make tobacco leaf overall chemical component proportions more meet the requirement of sound tobacco, achieve many things at one stroke.Nicotine decreasing and potassium elevating preparation of fire-cured tobacco of the present invention, nontoxic, safe and convenient to use, there is the effect of significantly falling alkali increasing potassium, can promote the use of at vega.
Claims (5)
1. a nicotine decreasing and potassium elevating preparation of fire-cured tobacco, is characterized in that the component of being calculated by following percentage ratio by weight forms:
Arginine 1 ~ 2%; Methionine(Met) 2 ~ 3%; Silicomolybdic acid sodium 3 ~ 5%; P
2o
54 ~ 8%; K
2o 4 ~ 7%; EDDHA-Fe 0.03 ~ 0.07%; EDTA-Zn 0.05 ~ 1%; EDTA-Mn 0.04 ~ 1%; Brassinolide 0.05 ~ 0.8%; 5-sulphosalicylic acid 5 ~ 12%, Whitfield's ointment 0.3 ~ 6%, surplus is water.
2. a nicotine decreasing and potassium elevating preparation of fire-cured tobacco, is characterized in that being made up of following raw material:
Get arginine 0.2 g, methionine(Met) 0.3 g, silicomolybdic acid sodium is 2 g, P
2o
52 g, K
2o 2 g, EDDHA-Fe 0.01 g, EDTA-Zn 0.01g, EDTA-Mn 0.01 g, brassinolide 0.01 g, Whitfield's ointment 1 g, is dissolved in above-mentioned composition in 15 g water, makes whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco;
Or get arginine 1 g, and methionine(Met) 2 g, silicomolybdic acid sodium is 3 g, P
2o
54 g, K
2o 4 g, EDDHA-Fe 0.03 g, EDTA-Zn 0.05g, EDTA-Mn 0.04 g, brassinolide 0.05 g, Whitfield's ointment 6 g, are dissolved in above-mentioned composition in 20g water, make whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco;
Or get arginase 12 g, and methionine(Met) 3 g, silicomolybdic acid sodium is 5 g, P
2o
58 g, K
2o 7 g, EDDHA-Fe 0.07 g, EDTA-Zn 1 g, EDTA-Mn 1 g, brassinolide 0.8 g, Whitfield's ointment 5 g, are dissolved in above-mentioned composition in 50 g water, make whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
3. a nicotine decreasing and potassium elevating preparation of fire-cured tobacco, is characterized in that being made up of following raw material:
Get arginine 0.2 g, methionine(Met) 0.3 g, silicomolybdic acid sodium is 2 g, P
2o
52 g, K
2o 2 g, EDDHA-Fe 0.01 g, EDTA-Zn 0.01 g, EDTA-Mn 0.01 g, 5-sulphosalicylic acid 1 g, Whitfield's ointment 1 g, is dissolved in above-mentioned composition in 15 g water, makes whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco;
Or get arginine 1 g, and methionine(Met) 2 g, silicomolybdic acid sodium is 3 g, P
2o
54 g, K
2o 4 g, EDDHA-Fe 0.03 g, EDTA-Zn 0.05g, EDTA-Mn 0.04 g, 5-sulphosalicylic acid 5 g, Whitfield's ointment 0.5g, is dissolved in above-mentioned composition in 30 g water, makes whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco;
Or get arginase 12 g, and methionine(Met) 3 g, silicomolybdic acid sodium is 5 g, P
2o
58 g, K
2o 7 g, EDDHA-Fe 0.07 g, EDTA-Zn 1 g, EDTA-Mn 1 g, 5-sulphosalicylic acid 12 g, Whitfield's ointment 0.5 g, is dissolved in above-mentioned composition in 60 g water, makes whole dissolvings, then water is mended to 100 g and obtained nicotine decreasing and potassium elevating preparation of fire-cured tobacco.
4. a preparation method for nicotine decreasing and potassium elevating preparation of fire-cured tobacco described in any one claim in claims 1 to 3, is characterized in that, first adopt suitable quantity of water by after other component mixed dissolutions except Whitfield's ointment, then add Whitfield's ointment, then water is mended to 100%.
5. the using method of nicotine decreasing and potassium elevating preparation of fire-cured tobacco described in any one claim in a claims 1 to 3, it is characterized in that adopting described in claim 1 ~ 3 any one after 1000 times～10000 times of nicotine decreasing and potassium elevating preparation of fire-cured tobacco dilutions, obtain the nicotine decreasing and potassium elevating preparation of fire-cured tobacco aqueous solution, pinch and within second day, spray cigarette strain in flue-cured tobacco, every mu of vega amount of spraying is 40～50 kilograms of described nicotine decreasing and potassium elevating preparation of fire-cured tobacco aqueous solution.
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| CN105493916A (en) * | 2015-12-03 | 2016-04-20 | 湖南农业大学 | Method for reducing content of nicotine in flue-cured tobacco leaves |
| CN105541438A (en) * | 2016-01-14 | 2016-05-04 | 安徽省农业科学院烟草研究所 | Tobacco selenium-enriching and potassium-extracting leaf fertilizer and preparation method thereof |
| CN107094603B (en) * | 2017-04-26 | 2019-08-30 | 广东中烟工业有限责任公司 | A kind of flue-cured tobacco low temperature rush is early to send out Nutrition Soil and its preparation method and application |
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