CN104961522A - Special compound fertilizer for flue-cured tobacco variety NC297 and preparation method and application thereof - Google Patents
Special compound fertilizer for flue-cured tobacco variety NC297 and preparation method and application thereof Download PDFInfo
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- CN104961522A CN104961522A CN201510344610.8A CN201510344610A CN104961522A CN 104961522 A CN104961522 A CN 104961522A CN 201510344610 A CN201510344610 A CN 201510344610A CN 104961522 A CN104961522 A CN 104961522A
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- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 76
- 241000208125 Nicotiana Species 0.000 title claims abstract description 75
- 239000003337 fertilizer Substances 0.000 title claims abstract description 59
- 150000001875 compounds Chemical class 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 20
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000011591 potassium Substances 0.000 claims abstract description 19
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 19
- 241000196324 Embryophyta Species 0.000 claims abstract description 13
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 12
- 239000011574 phosphorus Substances 0.000 claims abstract description 12
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 12
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 12
- 235000011151 potassium sulphates Nutrition 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 10
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 8
- 239000005696 Diammonium phosphate Substances 0.000 claims description 8
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 8
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 8
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000013467 fragmentation Methods 0.000 claims description 2
- 238000006062 fragmentation reaction Methods 0.000 claims description 2
- 208000035240 Disease Resistance Diseases 0.000 abstract description 4
- 244000061176 Nicotiana tabacum Species 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
- 235000019504 cigarettes Nutrition 0.000 description 12
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 8
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 7
- 229960002715 nicotine Drugs 0.000 description 7
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 7
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 240000003978 Ipomoea coccinea Species 0.000 description 4
- 230000035558 fertility Effects 0.000 description 4
- 206010025482 malaise Diseases 0.000 description 4
- 235000010333 potassium nitrate Nutrition 0.000 description 4
- 239000004323 potassium nitrate Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 230000005070 ripening Effects 0.000 description 2
- 241000243786 Meloidogyne incognita Species 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- WZLMXYBCAZZIRQ-UHFFFAOYSA-N [N].[P].[K] Chemical compound [N].[P].[K] WZLMXYBCAZZIRQ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009418 agronomic effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000009479 steam granulation Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Landscapes
- Fertilizers (AREA)
Abstract
The invention discloses a special compound fertilizer for flue-cured tobacco variety NC297, and a preparation method and application thereof, wherein the weight percentage contents of nitrogen, phosphorus and potassium in the compound fertilizer are respectively 6-8%, 6-8% and 18-24%. The flue-cured tobacco variety NC297 planted by the compound fertilizer has good overall growth of tobacco plants, the topping plant height is increased by 9.69-12.50%, the number of leaves is increased by 7.11-8.70%, and the length and width of waist leaves are respectively increased by 4.96-8.38% and 3.61-9.39%. The disease resistance is enhanced, the incidence rate of the climatic spots is reduced by 16 to 19.37 percent, and the incidence rate of the brown spot is reduced by 17.23 to 28.38 percent. The yield per mu is improved by 10.96-17.83%, and the yield per mu is improved by 13.30-21.35%. The first-class smoke proportion is improved by 14.46 to 15.05 percent.
Description
Technical field
The present invention relates to agricultural technology field, particularly relate to compound fertilizer special of a kind of flue-cured tobacco cultivars NC297 and preparation method thereof and application.
Background technology
Flue-cured tobacco cultivars NC297 is the first familiar generation kind be bred as by gold leaf seeds company of the U.S. in 1998.Within 2006, introduced from the U.S. by China Tobacco Yunnan Industrial Co., Ltd..NC297 plant type is tower, leaf oblong, and pinch plant height 103-136.38 centimetre, effective blade number 26 after pinching, stays leaf 20-22 sheet, the long 56.97-71.75 centimetre of waist leaf, wide 20-30 centimetre, pitch 3.39-4.88 centimetre, stem girth 9.25-11.22 centimetre.Strong drought resistance, seedling stage, growing way was strong, and grown in field growing way in early stage is slightly weak, and plant latter 50 days growth potentials strong, leaf look delicate and pretty, and colony's growing way is neat, and middle and lower part blade is slightly thin, and middle and upper part blade is moderate, growing stage about 125 days.Per mu yield 140-175 kilogram.Former cigarette intrinsic chemical component content is moderate, eurythmy: total reducing sugar 24.5%-30.4%, reducing sugar 22.4%-27.7%, nicotine 2.1%-3.6%, total nitrogen 1.8%-2.5%, protein 7.98%-8.96%.NC297 kind tobacco leaf delicate fragrance is obvious, and aroma quality is better, and sweet rhythm is comparatively obvious, and perfume quantity is medium, and to comparatively sufficient, concentration is medium, and assorted gas is few, and stimulate comparatively light, pleasant impression is totally comfortable, and strength is medium.The anti-MTV of NC297 kind, balck shank, bacterial wilt, Meloidogyne incognita, middle sense red-star like disease.NC297 kind is totally more easily toasted, and after roasting, color is orange, and ripening degree is good, short texture gloss is medium to strong, and oil content is slightly to having, and structure is still loosened to loose.Flavescence feature that lower tobacco leaf shows as " all over ", not resistance to roasting, just can turn fire after little muscle bleaches, otherwise easily be roasted into blue veins tobacco leaf; Middle and upper part tobacco leaf is resistance to roasting easily roasting, and flavescence speed and desiccation speed compatibleness better, are extensively liked by tobacco grower, are easy to be accepted by cigarette factory.
In recent years, along with developing rapidly of cured tobacco production, the guidance of tobacco grower's for want of science in traditional cropping pattern, production exists fertilizer type collocation and the irrational phenomenon of nutrient formula, shows as part peasant household and uses nitrogen and execute unreasonable, potassium amount of application deficiency etc.Tobacco grower blindly uses chemical fertilizer, the irrational phenomenon of nutrient formula not only reduces utilization rate of fertilizer, add fertilizer cost, also adverse influence is caused to the Yield and quality of tobacco leaf simultaneously, it is reported, various places tobacco company has the special nitrogen-phosphorus-potassium compound fertilizer for flue-cured tobacco, but does not also have the specific NpK complex fertilizer for flue-cured tobacco cultivars NC297.
Summary of the invention
Primary and foremost purpose of the present invention is to overcome the shortcoming that exists in prior art with not enough, provides the compound fertilizer special of a kind of flue-cured tobacco cultivars NC297.
Another object of the present invention is to provide the preparation method of the compound fertilizer special of described flue-cured tobacco cultivars NC297.
Another object of the present invention is to provide the application of the compound fertilizer special of described flue-cured tobacco cultivars NC297.
The present invention adopts following technical scheme:
In the compound fertilizer special of flue-cured tobacco cultivars NC297 of the present invention, the weight percent content of nitrogen, phosphorus, potassium is respectively 6-8%, 6-8% and 18-24%.
In preferred Chemical Mixed Fertilizer, the weight percent content of nitrogen, phosphorus, potassium is respectively 7%, 7% and 21%.
Described nitrogen source is in ammonium nitrate; Described phosphorus derives from diammonium phosphate; Described potassium derives from potassium sulfate.
The compound fertilizer special of flue-cured tobacco cultivars NC297 of the present invention comprises the raw material of following weight part: ammonium nitrate 13-15 part, diammonium phosphate 16-18 part, potassium sulfate 46-48 part.
The compound fertilizer special of described flue-cured tobacco cultivars NC297 is not containing urea.
The compound fertilizer special of flue-cured tobacco cultivars NC297 of the present invention is made up of the raw material of following weight part: ammonium nitrate 13-15 part, diammonium phosphate 16-18 part, potassium sulfate 46-48 part, diatomite 33-35 part, more preferably: 14 parts, ammonium nitrate, diammonium phosphate 17 parts, potassium sulfate 47 parts, 34 parts, diatomite.
The concrete steps of the preparation method of the compound fertilizer special of flue-cured tobacco cultivars NC297 of the present invention are as follows: first take various component by proportioning, then by each component precrushing, fragmentation is carried out after being uniformly mixed, then drum granulating is carried out, cool after drying kiln drying granulating, sieve, obtain the compound fertilizer special of flue-cured tobacco cultivars NC297.
The compound fertilizer special of flue-cured tobacco cultivars NC297 of the present invention be used for flue-cured tobacco cultivars NC297 kind plant in application, described compound fertilizer special is applied in the plantation in transplanting stage of flue-cured tobacco cultivars NC297.
The usage quantity of the compound fertilizer special of described flue-cured tobacco cultivars NC297 is every mu of compound fertilizer special using the flue-cured tobacco cultivars NC297 of 60-70kg.
The compound fertilizer special of described flue-cured tobacco cultivars NC297 can be applicable to the plantation of flue-cured tobacco cultivars NC297; It can improve the output of flue-cured tobacco cultivars NC297, the output value, first-class cigarette ratio, it is long and wide to improve waist leaf, improves the ability of anti-weather spot, red-star like disease.
Positively effect of the present invention is as follows:
The present invention is respectively 6-8%, 6-8% and 18-24% by the weight percentage of control nitrogen, phosphorus, potassium, prepares the compound fertilizer special of flue-cured tobacco cultivars NC297.Adopt the overall well-grown of cigarette strain of compound fertilizer special plantation flue-cured tobacco cultivars NC297, the flue-cured tobacco cultivars NC297 of this flue-cured tobacco cultivars NC297, disease resistance is strong, and weather spot sickness rate reduces 16-19.37%, and the sickness rate of red-star like disease reduces 17.23-28.38%.
Every economical character value is excellent, and plant height of wherein pinching adds 9.69-12.50%, and leaves remained adds 7.11-8.70%, and waist leaf length and width adds 4.96-8.38%, 3.61-9.39% respectively; The total nitrogen of tobacco leaf, nicotine, total reducing sugar, reducing sugar, cigarette potassium and nitrogen base are than all in comparatively optimum range, and wherein potassium content of tobacco leaf raising more than 2%, nicotine reduces 18.18-19.20%.Per mu yield improves 10.96-17.83%, and per mu yield value improves 13.30-21.35%.First-class cigarette ratio improves 14.46-15.05%.The present invention can be applicable to the batch plantation of flue-cured tobacco cultivars NC297.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
The compound method of the compound fertilizer special of flue-cured tobacco cultivars NC297: adopt rotary drum steam granulation processing method to make, by ammonium nitrate 13-15 part, diammonium phosphate 16-18 part, potassium sulfate 46-48 part, and the precrushing respectively of 33-35 part diatomite, then be uniformly mixed, be broken into powdery again, by mixed component drum granulating, its granulation process and condition are: add steam at rotary drum, start reunion with the powder of each simple substance fertilizer of mixing to be advisable, the powder of roughly reuniting is dried by belt input drying kiln, control drying kiln temperature at 140 DEG C, powder further granulating drying in drying kiln, cool through cooling kiln, after crossing 5 mesh sieves, finished product is packed, excessive or too small particle returns rear further from new granulation.In the compound fertilizer special of described flue-cured tobacco cultivars NC297, the weight percent content of nitrogen, phosphorus, potassium is 7%, 7%, 21%.
For high fertility field (grade scale be second time the overall survey of soil), use nitrogen during transplanting, phosphorus, potassium weight percent content be 7%, 7%, 21% fertilizer prepare, amount of application is 60kg/667m
2, transplant latter 7-10 days and within 15-20 days, use respectively after transplanting saltpetre 5kg and 14kg and topdress as first time, transplant and within latter about 40 days, use potassium sulfate 16kg as topdressing for the second time.
Embodiment 2
The compound method of the compound fertilizer special of flue-cured tobacco cultivars NC297: with embodiment 1.
For medium fertility field (grade scale be second time the overall survey of soil), use nitrogen during transplanting, phosphorus, potassium weight percent content be 7%, 7%, 21% fertilizer prepare, amount of application is 65kg/667m
2, transplant latter 7-10 days and within 15-20 days, use respectively after transplanting saltpetre 5kg and 14kg and topdress as first time, transplant and within latter about 40 days, use potassium sulfate 16kg as topdressing for the second time.
Embodiment 3
The compound method of the compound fertilizer special of flue-cured tobacco cultivars NC297: with embodiment 1.
For the fertility field such as low (grade scale is the second time overall survey of soil), use nitrogen during transplanting, phosphorus, potassium weight percent content be 7%, 7%, 21% fertilizer prepare, amount of application is 70kg/667m
2, transplant latter 7-10 days and within 15-20 days, use respectively after transplanting saltpetre 5kg and 14kg and topdress as first time, transplant and within latter about 40 days, use potassium sulfate 16kg as topdressing for the second time.
Case of comparative examples
Choose the fertility field suitable with it on embodiment 1,2,3 field side respectively and carry out controlled trial, namely contrast 1,2,3.Contrast by fertilizer formula and local peasant household fertilising custom: execute compound fertilizer special for flue-cured tobacco, its formula is N:P:K=12:10:24, wherein contrast and 1,2,3 use 40 respectively, 45,50kg/667m
2, topdress as saltpetre 19kg, potassium sulfate 16kg.
The Other Main Agronomic Characters contrast of table 1 ripening stage
| Economical character | Embodiment 1 | Embodiment 2 | Embodiment 3 | Contrast 1 | Contrast 2 | Contrast 3 |
| To pinch plant height (cm) | 127.9 | 134.1 | 123.9 | 116.6 | 119.2 | 111.3 |
| Leaves remained | 22.6 | 23 | 22.5 | 21.1 | 21.4 | 20.7 |
| Stem girth (cm) | 8.8 | 8.9 | 8.6 | 8.5 | 8.6 | 8.4 |
| Waist leaf length and width (cm) | 76.1×25.8 | 76.3×26.8 | 75×25.6 | 72.5×24.9 | 71×24.5 | 69.2×24.1 |
As can be seen from Table 1, through the flue-cured tobacco cultivars NC297 using the compound fertilizer special of flue-cured tobacco cultivars NC297 of the present invention to plant, plant height of pinching adds 9.69-12.50%, and leaves remained adds 7.11-8.70%, and waist leaf length and width adds 4.96-8.38%, 3.61-9.39% respectively.
Table 2 Major Economic contrasts
| Economic characters | Embodiment 1 | Embodiment 2 | Embodiment 3 | Contrast 1 | Contrast 2 | Contrast 3 |
| Per mu yield (thousand grams/acre) | 234.8 | 238.6 | 223.9 | 211.6 | 202.5 | 198.7 |
| Per mu yield value (unit/mu) | 4462.2 | 4579.1 | 4217.7 | 3938.4 | 3773.5 | 3658.6 |
| First-class cigarette ratio (%) | 83.5 | 84.1 | 83.1 | 72.9 | 73.1 | 72.6 |
As can be seen from Table 2, the per mu yield of the flue-cured tobacco cultivars NC297 planted through using the compound fertilizer special of flue-cured tobacco cultivars NC297 of the present invention improves 10.96-17.83%, and per mu yield value improves 13.30-21.35%.First-class cigarette ratio improves 14.46-15.05%.
As can be seen from Table 3, through the flue-cured tobacco cultivars NC297 using the compound fertilizer special of flue-cured tobacco cultivars NC297 of the present invention to plant, the overall well-grown of cigarette strain, disease resistance strengthens, the sickness rate of weather spot reduces 16-19.37%, and the sickness rate of red-star like disease reduces 17.23-28.38%.
As can be seen from Table 4, through the flue-cured tobacco cultivars NC297 using the compound fertilizer special of flue-cured tobacco cultivars NC297 of the present invention to plant, the total nitrogen of tobacco leaf, nicotine, total reducing sugar, reducing sugar, cigarette potassium and nitrogen base are than all in comparatively optimum range, wherein potassium content of tobacco leaf improves more than 2%, and nicotine reduces 18.18-19.20%.
Table 3 Major Diseases situation contrasts
Table 4 major chemical is verified and is compared
| Chemical quality | Embodiment 1 | Embodiment 2 | Embodiment 3 | Contrast 1 | Contrast 2 | Contrast 3 |
| Cigarette potassium (%) | 1.82 | 1.86 | 1.84 | 1.74 | 1.79 | 1.75 |
| Total nitrogen (%) | 2.13 | 2.02 | 2.10 | 2.43 | 2.32 | 2.34 |
| Nicotine (%) | 2.14 | 2.16 | 2.23 | 2.62 | 2.64 | 2.76 |
| Water-soluble Total Sugar (%) | 30.71 | 31.31 | 29.67 | 29.47 | 29.24 | 28.43 |
| Reducing sugar (%) | 25.32 | 24.92 | 23.87 | 23.28 | 23.68 | 23.27 |
| Nitrogen base ratio | 1.00 | 0.94 | 0.94 | 0.93 | 0.88 | 0.85 |
Visible, the compound fertilizer special of the flue-cured tobacco cultivars NC297 prepared has plant height, the leaves remained that can increase flue-cured tobacco cultivars NC297, waist leaf length and width, enhance disease resistance, improve the first-class cigarette ratio of the per mu yield of flue-cured tobacco cultivars NC297, per mu yield value, tobacco leaf, improve potassium content of tobacco leaf, reduce the advantage of nicotine content, can be applicable to the batch plantation of flue-cured tobacco cultivars NC297.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1. a compound fertilizer special of flue-cured tobacco cultivars NC297, is characterized in that: in described Chemical Mixed Fertilizer, the weight percent content of nitrogen, phosphorus, potassium is respectively 6-8%, 6-8% and 18-24%.
2. the compound fertilizer special of flue-cured tobacco cultivars NC297 as claimed in claim 1, is characterized in that: in described Chemical Mixed Fertilizer, the weight percent content of nitrogen, phosphorus, potassium is respectively 7%, 7% and 21%.
3. the compound fertilizer special of flue-cured tobacco cultivars NC297 as claimed in claim 1 or 2, is characterized in that: described nitrogen source is in ammonium nitrate; Described phosphorus derives from diammonium phosphate; Described potassium derives from potassium sulfate.
4. the compound fertilizer special of flue-cured tobacco cultivars NC297 as claimed in claim 1 or 2, is characterized in that: described Chemical Mixed Fertilizer comprises the raw material of following weight part: ammonium nitrate 13-15 part, diammonium phosphate 16-18 part, potassium sulfate 46-48 part.
5. the compound fertilizer special of flue-cured tobacco cultivars NC297 as claimed in claim 1 or 2, is characterized in that: described Chemical Mixed Fertilizer is made up of the raw material of following weight part: ammonium nitrate 13-15 part, diammonium phosphate 16-18 part, potassium sulfate 46-48 part, diatomite 33-35 part.
6. prepare the method for the compound fertilizer special of the flue-cured tobacco cultivars NC297 as described in any one of claim 1-5 for one kind, it is characterized in that: the concrete steps of described method are as follows: first take various component by proportioning, then by each component precrushing, fragmentation is carried out after being uniformly mixed, then drum granulating is carried out, cool after drying kiln drying granulating, sieve, obtain the compound fertilizer special of flue-cured tobacco cultivars NC297.
7. the compound fertilizer special of the flue-cured tobacco cultivars NC297 as described in any one of claim 1-5 be used for flue-cured tobacco cultivars NC297 kind plant in application, it is characterized in that: described compound fertilizer special is applied in the plantation in transplanting stage of flue-cured tobacco cultivars NC297.
8. apply as claimed in claim 7, it is characterized in that: the usage quantity of the compound fertilizer special of described flue-cured tobacco cultivars NC297 is every mu of compound fertilizer special using the flue-cured tobacco cultivars NC297 of 60-70kg.
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Cited By (2)
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| CN106116759A (en) * | 2016-01-29 | 2016-11-16 | 中国科学院南京土壤研究所 | Improve potassium content of tobacco leaf on Huang-Huai-Hai basic soil and improve fertilizer and the application thereof of Flue-cured tobacco Quality |
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