CN116918668B - Efficient transplanting method for flue-cured tobacco - Google Patents
Efficient transplanting method for flue-cured tobacco Download PDFInfo
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- CN116918668B CN116918668B CN202310875163.3A CN202310875163A CN116918668B CN 116918668 B CN116918668 B CN 116918668B CN 202310875163 A CN202310875163 A CN 202310875163A CN 116918668 B CN116918668 B CN 116918668B
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- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 67
- 241000208125 Nicotiana Species 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000002689 soil Substances 0.000 claims abstract description 50
- 235000015097 nutrients Nutrition 0.000 claims abstract description 17
- 239000003337 fertilizer Substances 0.000 claims abstract description 15
- 239000011159 matrix material Substances 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 238000005728 strengthening Methods 0.000 claims abstract description 5
- AFSDNFLWKVMVRB-UHFFFAOYSA-N Ellagic acid Chemical compound OC1=C(O)C(OC2=O)=C3C4=C2C=C(O)C(O)=C4OC(=O)C3=C1 AFSDNFLWKVMVRB-UHFFFAOYSA-N 0.000 claims description 8
- ATJXMQHAMYVHRX-CPCISQLKSA-N Ellagic acid Natural products OC1=C(O)[C@H]2OC(=O)c3cc(O)c(O)c4OC(=O)C(=C1)[C@H]2c34 ATJXMQHAMYVHRX-CPCISQLKSA-N 0.000 claims description 8
- 229920002079 Ellagic acid Polymers 0.000 claims description 8
- 229910021538 borax Inorganic materials 0.000 claims description 8
- 229960002852 ellagic acid Drugs 0.000 claims description 8
- 235000004132 ellagic acid Nutrition 0.000 claims description 8
- FAARLWTXUUQFSN-UHFFFAOYSA-N methylellagic acid Natural products O1C(=O)C2=CC(O)=C(O)C3=C2C2=C1C(OC)=C(O)C=C2C(=O)O3 FAARLWTXUUQFSN-UHFFFAOYSA-N 0.000 claims description 8
- 239000003895 organic fertilizer Substances 0.000 claims description 8
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 8
- 239000004328 sodium tetraborate Substances 0.000 claims description 8
- AXKBOWBNOCUNJL-UHFFFAOYSA-M sodium;2-nitrophenolate Chemical compound [Na+].[O-]C1=CC=CC=C1[N+]([O-])=O AXKBOWBNOCUNJL-UHFFFAOYSA-M 0.000 claims description 8
- 235000019362 perlite Nutrition 0.000 claims description 7
- 239000010451 perlite Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 244000061176 Nicotiana tabacum Species 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 230000004083 survival effect Effects 0.000 description 4
- 238000012364 cultivation method Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/45—Tobacco
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
- A01G24/12—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing soil minerals
- A01G24/15—Calcined rock, e.g. perlite, vermiculite or clay aggregates
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/30—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Soil Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Botany (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transplanting Machines (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The invention discloses a high-efficiency flue-cured tobacco transplanting method, which comprises the following steps: s1, preparing a seedling strengthening matrix; s2, using a strong seedling substrate as a seedling substrate, and adopting a two-stage seedling method or a floating seedling method to cultivate strong seedlings; s3, preparing nutrient soil; s4, preparing soil and ridging before transplanting, and manufacturing sleeve holes on the ridge body, wherein each sleeve hole comprises a big hole positioned above, a small hole extending downwards is manufactured in the center of the bottom of the big hole, an annular fertilizing groove is manufactured at the edge of the bottom of the big hole, and the fertilizing groove surrounds the periphery of the top of the small hole; s5, applying base fertilizer in the fertilizer application groove; s6, transplanting tobacco seedlings into small holes, and applying nutrient soil in the small holes as accompanying soil; s7, after transplanting for 14-16 days, filling small holes with nutrient soil to serve as small hilling; and S8, after 35-40 days of transplanting, filling the big holes with nutrient soil to serve as big hills. The invention realizes deep planting of tobacco seedling in true sense, can promote the growth and development of tobacco seedling root system, promote early growth and quick development of tobacco seedling, reduce labor intensity and production cost, and improve tobacco quality and economic benefit.
Description
Technical Field
The invention relates to the technical field of tobacco seedling transplanting, in particular to a high-efficiency flue-cured tobacco transplanting method.
Background
Tobacco seedling transplanting is an important link of tobacco planting, and at present, flue-cured tobacco is mainly transplanted by adopting a pit-type transplanting or hole-punching transplanting mode for cultivated tobacco seedlings, and the two modes have the following problems: 1. tobacco seedlings are not strong, quality is poor, and survival rate after transplanting is low; 2. insufficient transplanting depth, more prominent fertilizer damage phenomenon, easy occurrence of old seedling and stiff seedling, early growth and slow development of tobacco plants, more post-fuming, influence on the maturity and quality of tobacco leaves and income of tobacco farmers.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a high-efficiency flue-cured tobacco transplanting method which is simple and easy to operate, can simplify transplanting steps, improves the survival rate of tobacco seedlings, promotes the tobacco seedlings to grow earlier and grow faster, promotes the stem to grow adventitious roots and strengthens the root system of tobacco plants.
The technical scheme adopted for achieving the purposes of the invention is as follows:
a high-efficiency transplanting method of flue-cured tobacco comprises the following steps:
s1, adding sodium nitrophenolate, borax and ellagic acid into a basic matrix, and uniformly mixing to obtain a seedling strengthening matrix;
s2, using a strong seedling substrate as a seedling substrate, and adopting a two-stage seedling method or a floating seedling method to cultivate strong seedlings;
s3, crushing mountain soil, uniformly mixing the mountain soil with the organic fertilizer and the perlite, and preparing nutrient soil;
s4, preparing soil and ridging before transplanting, and manufacturing sleeve holes on the ridge body by using a special tool, wherein each sleeve hole comprises a big hole positioned above, a small hole extending downwards is manufactured at the center of the bottom of the big hole, an annular fertilizing groove is manufactured at the edge of the bottom of the big hole, and the fertilizing groove surrounds the periphery of the top of the small hole;
s5, applying base fertilizer in the fertilizer application groove;
s6, transplanting the tobacco seedlings into small holes, and applying nutrient soil in the small holes as accompanying soil to enable the tobacco seedlings to be in a vertical ear shape;
s7, after transplanting for 14-16 days, filling small holes with nutrient soil to serve as small hills, and enabling tobacco seedlings to be in a vertical ear shape;
and S8, after 35-40 days of transplanting, filling the big holes with nutrient soil to serve as big hills.
Further, 30-60mg of sodium nitrophenolate, 200-400mg of borax and 20-40mg of ellagic acid are added into every 1kg of basic matrix in the strong seedling matrix.
Further, the mass ratio of the mountain soil to the organic fertilizer to the perlite is 65-75:20-40:0.3-1.7.
The mountain soil is mountain surface soil/soil bricks/rice soil without tobacco leaves planted, and red soil is prevented from being used as accompanying soil;
the organic fertilizer is special for tobacco, and the proportion of cow dung and straw is 40% and 60% respectively.
Further, the big hole is in a shape similar to an inverted cone, and the small hole is in a shape similar to an inverted cone.
Further, the depth of the big hole is 130-150mm, the diameter of the top of the big hole is 250-300mm, the diameter of the bottom of the big hole is 180-200mm, the depth of the small hole is 180-200mm, the diameter of the top of the small hole is 60-80mm, and the depth of the annular groove is 15-25mm.
Compared with the prior art, the invention has the following beneficial effects and advantages:
1. in the invention, sodium nitrophenolate, borax and ellagic acid are added into the basic matrix in the seedling stage, and the sodium nitrophenolate, borax and ellagic acid are mutually matched, so that the radial and vertical growth of stem parts of tobacco seedlings can be promoted, and the growth of root systems of the tobacco seedlings can be promoted, thereby cultivating high-stem strong seedlings with excellent characters.
2. The invention adopts the special sleeve holes to transplant the tobacco seedlings into the small holes with deeper positions, realizes the deep planting of the tobacco seedlings in the true sense, can promote the growth and development of the root systems of the tobacco seedlings, promote the early growth and rapid emergence of the tobacco seedlings, and improve the quality and economic benefit of tobacco leaves.
3. The invention adopts special sleeve holes, and nutrient soil is applied during the transplanting of tobacco seedlings, thereby improving the rhizosphere environment, facilitating the growth of root systems and improving the survival rate after the transplanting.
4. The invention adopts special sleeve holes, and base fertilizer is applied to the inner ring of the big holes around the small holes, so that the distance between tobacco seedlings and fertilizer is 40mm-50mm, thereby effectively avoiding fertilizer damage, reducing disease incidence and ensuring uniform fertilizer efficiency.
5. The invention adopts special sleeve holes, and utilizes the small holes to transplant tobacco seedlings, so that the small hilling link and the large hilling operation become simple, the tobacco planting field management link is simplified, and the labor intensity and the production cost are reduced.
Drawings
FIG. 1 is a schematic diagram of a well pit.
Wherein, the fertilizer is applied in 1-big hole, 2-small hole and 3-fertilizing groove.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Example 1
S1, adding 5g of sodium nitrophenolate, 30g of borax and 3g of ellagic acid into 100kg of basic matrix (locally common flue-cured tobacco floating seedling matrix using turf, perlite and the like as materials), and uniformly mixing to obtain a seedling strengthening matrix.
S2, using the strong seedling substrate as a seedling substrate to carry out strong seedling cultivation by adopting a two-stage seedling cultivation method.
S3, taking rice soil without tobacco leaves planted as mountain soil, crushing 70kg of rice soil, uniformly mixing with 30kg of organic fertilizer and 1kg of perlite, and preparing nutrient soil;
the organic fertilizer is special for tobacco, and the proportion of cow dung and straw is 40% and 60% respectively.
S4, preparing soil and ridging before transplanting, wherein sleeve holes are formed on the ridge body at intervals of 500mm, each sleeve hole comprises a big hole 1 positioned above, each big hole 1 is in an inverted truncated cone-like shape, the top diameter of each big hole 1 is 260mm, the bottom diameter of each big hole 1 is 180mm, and the depth of each big hole 1 is 130mm. The center of the bottom of the big hole 1 is provided with a small hole 2 which extends downwards, the small hole 2 is in an inverted cone shape, the diameter of the top of the small hole 2 is 70mm, and the depth of the small hole 2 is 150mm. The edge of the bottom of the big hole 1 is provided with an annular fertilizing groove 3, the fertilizing groove 3 surrounds the periphery of the top of the small hole, the inner wall of the fertilizing groove 3 is in a truncated cone-like shape, and the depth of the fertilizing groove 3 is 20mm.
S5, applying base fertilizer in the fertilizer application groove;
s6, transplanting the tobacco seedlings into small holes, and applying nutrient soil in the small holes as accompanying soil to enable the tobacco seedlings to be in a vertical ear shape;
s7, after 15 days of transplanting, filling small holes with nutrient soil to serve as small hills, so that the tobacco seedlings are in a vertical ear shape;
and S8, after 40 days of transplanting, filling the big holes with nutrient soil to serve as big hills.
S9, other cultivation management measures are managed according to the local flue-cured tobacco seedling transplanting technical rules.
Comparative example 1
The difference from example 1 is that the seedling stage uses a base substrate as a seedling substrate for seedling cultivation, unlike the substrate used in the seedling stage.
The tobacco seedlings cultivated by the seedling cultivation method of example 1 are compared with the tobacco seedlings cultivated by the seedling cultivation method of the comparative example in terms of properties and indexes, and the results are shown in the following table 1:
TABLE 1
Comparative example 2
S1, adding 5g of sodium nitrophenolate, 30g of borax and 3g of ellagic acid into 100kg of basic matrix, and uniformly mixing to obtain a seedling strengthening matrix.
S2, seedling raising is carried out by adopting a two-stage seedling raising method by taking the strong seedling substrate as a seedling raising substrate.
S3, taking rice soil without tobacco leaves planted as mountain soil, respectively crushing 70kg of mountain soil, 30kg of organic fertilizer and 1kg of perlite, and uniformly mixing to prepare the accompanying soil.
S4, preparing soil, ridging, manually digging furrows on the ridge body, fertilizing and then earthing.
S5, manufacturing a pit on the ridge body, wherein the pit opening is circular, the diameter of the pit opening is 9cm, the depth of the pit opening is 20cm, vertically lifting tobacco seedlings, vertically throwing the tobacco seedlings into the pit, and applying accompanying soil.
S6, after 15 days of transplanting, filling small holes with furrow soil or ridge soil to serve as small hills, so that tobacco seedlings are in a vertical lug shape;
and S7, after 40 days of transplanting, the soil is shoveled in the furrows to be planted around the tobacco plants of the ridge bodies or the soil on the ridge bodies is planted around the tobacco plants to be used as large hilling.
S8, other cultivation management measures are managed according to the local flue-cured tobacco seedling transplanting technical rules.
The results of comparing the growth and economic properties of the flue-cured tobacco planted by the transplanting method of example 1 with those of the flue-cured tobacco transplanted by the transplanting method of the comparative example are shown in the following tables 2 and 3, respectively:
TABLE 2
TABLE 3 Table 3
| Treatment of | Yield (kg/mu) | Average price (Yuan/kg) | Yield value (Yuan/mu) | Smoke ratio of higher grade (%) |
| Example 1 | 158.70 | 31.50 | 4999.05 | 72.30％ |
| Comparative example 2 | 139.10 | 28.60 | 3978.26 | 65.80％ |
As can be seen from tables 2 and 3, the method for transplanting tobacco seedlings by the nested holes remarkably improves the survival rate after transplanting, reduces the disease occurrence rate, can promote the rapid growth and development of root systems of tobacco seedlings, promotes the early growth and rapid emergence of tobacco seedlings (such as greatly shortened seedling returning period time and seedling group period time, good field uniformity and the like), and improves the quality and economic benefit of tobacco leaves.
Claims (2)
1. The efficient flue-cured tobacco transplanting method is characterized by comprising the following steps of:
s1, adding sodium nitrophenolate, borax and ellagic acid into a basic matrix, and uniformly mixing to obtain a seedling strengthening matrix, wherein 30-60mg of sodium nitrophenolate, 200-400mg of borax and 20-40mg of ellagic acid are added into each 1kg of basic matrix;
s2, using a strong seedling substrate as a seedling substrate, and adopting a two-stage seedling method or a floating seedling method to cultivate strong seedlings;
s3, crushing mountain soil, uniformly mixing the mountain soil with the organic fertilizer and the perlite, and preparing nutrient soil;
s4, preparing soil and ridging before transplanting, wherein the ridge body is provided with a sleeve hole, the sleeve hole comprises a big hole positioned above, the big hole is in an inverted circular truncated cone shape, the depth of the big hole is 130-150mm, the top diameter of the big hole is 250-300mm, the bottom diameter of the big hole is 180-200mm, a small hole extending downwards is prepared at the center of the bottom of the big hole, the small hole is in a reverse cone shape, the depth of the small hole is 150-200mm, the top diameter of the small hole is 60-80mm, the edge of the bottom of the big hole is provided with an annular fertilizing groove, the fertilizing groove surrounds the periphery of the top of the small hole, and the depth of the fertilizing groove is 15-25mm;
s5, applying base fertilizer in the fertilizer application groove;
s6, transplanting the tobacco seedlings into small holes, enabling the distance between the tobacco seedlings and the base fertilizer to be 40-50 mm, and applying nutrient soil in the small holes as accompanying soil, wherein the tobacco seedlings are in a vertical ear shape;
s7, after transplanting for 14-16 days, filling small holes with nutrient soil to serve as small hills, and enabling tobacco seedlings to be in a vertical ear shape;
and S8, after 35-40 days of transplanting, filling the big holes with nutrient soil to serve as big hills.
2. The efficient flue-cured tobacco transplanting method according to claim 1, characterized in that: the mass ratio of the mountain soil to the organic fertilizer to the perlite is 65-75:20-40:0.3-1.7.
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| CN104996156A (en) * | 2015-08-10 | 2015-10-28 | 贵州省烟草科学研究院 | Flue-cured tobacco deep-planting method adopting small holes formed in shallow pits and pit digging and hole punching integrated tool |
| CN105766278A (en) * | 2015-12-31 | 2016-07-20 | 广东省烟草南雄科学研究所 | Seedling strengthening method for replacing leaf cutting in tobacco industrialized seedling culture |
| CN106386156A (en) * | 2016-12-01 | 2017-02-15 | 中国烟草总公司广东省公司 | Planting method for improving quality of tobacco leaves of flue-cured tobacco variety NC55 |
| CN108432585A (en) * | 2018-03-23 | 2018-08-24 | 南平市烟草公司建阳分公司 | A kind of flue-cured tobacco transplanting method |
| CN108934887A (en) * | 2018-06-06 | 2018-12-07 | 四川省烟草公司泸州市公司 | A kind of light skeleton symbol flue-cured tobacco transplanting method |
| CN109090118A (en) * | 2018-07-25 | 2018-12-28 | 广西大学 | A kind of tobacco strong sprout inducer and preparation method thereof |
| CN212487249U (en) * | 2019-11-13 | 2021-02-09 | 江苏中烟工业有限责任公司 | Device is planted deeply to aperture of tobacco seedling |
| CN113728905A (en) * | 2021-08-31 | 2021-12-03 | 山东临沂烟草有限公司 | Suspended water culture seedling method for flue-cured tobacco |
| CN114521479A (en) * | 2022-03-14 | 2022-05-24 | 河南科技大学 | Two-stage tobacco seedling raising method based on microbial growth promotion and air root arrangement |
| CN114711113A (en) * | 2022-04-02 | 2022-07-08 | 中国烟草总公司广东省公司 | Tobacco seedling growing method by secondary filling of matrix |
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