CN105165437B - A kind of method for promoting tobacco seedling using LED plant growth light sources - Google Patents
A kind of method for promoting tobacco seedling using LED plant growth light sources Download PDFInfo
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- CN105165437B CN105165437B CN201510632269.6A CN201510632269A CN105165437B CN 105165437 B CN105165437 B CN 105165437B CN 201510632269 A CN201510632269 A CN 201510632269A CN 105165437 B CN105165437 B CN 105165437B
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- seedling
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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
- A01G7/00—Botany in general
- A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
- A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K2/00—Non-electric light sources using luminescence; Light sources using electrochemiluminescence
- F21K2/06—Non-electric light sources using luminescence; Light sources using electrochemiluminescence using chemiluminescence
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- 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
- Y02P60/14—Measures for saving energy, e.g. in green houses
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Cultivation Of Plants (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to a kind of method for promoting tobacco seedling using LED plant growth light sources, combined using red phosphor with blue chip and prepare fluorescent material excitated type LED plant growth light sources, fluorescent material is aluminate substrate, vanadic acid base status or nitride substrate, fluorescent material can be excited effectively in 440 470nm wave-length coverages, there is more apparent transmitting in 600 660nm wave-length coverages, the fluorescent material and organic silica gel are according to 1：4 20 mass ratioes mix.Enough illumination can be not only provided for tobacco leaf seedling-raising by using fluorescent material excitability LED, can also improve 25 DEG C of tobacco leaf seedling-raising Growth In Space temperature, on the premise of ensureing, even improving tobacco leaf seedling quality, can effectively shorten the time of tobacco leaf seedling-raising.The method is adapted to the area of tobacco leaf seedling-raising phase illumination deficiency to carry out greenhouse light filling and full indoor raising of seedling, or annual unremitting full indoor raising of seedling, can promote on a large scale.
Description
Technical field
The invention belongs to the technical field that LED light source promotes plant growth, and in particular to one kind utilizes LED plant growth light
The method that source promotes tobacco seedling.
Background technology
China is the first in the world tobacco leaf production big country, and tobacco business has unique status in national economy.
The just important environmental factor of crop growth, light quality (wave band composition) and illumination luminous intensity are to crop pattern
Build up, photosynthesis, Metabolism regulation and quality have very big influence.The ground such as Hunan, Fujian, Yunnan cigarette district flue-cured tobacco seedling-cultivating is every
The 1-3 months in year are carried out, and this period is that each department whole year temperature and intensity of illumination are minimum, and lighting delay number is minimum, and cold wave invasion and attack are frequent
Season.This unfavorable weather conditions cause various regions cigarette district despite the use of booth thermal insulation concentrate nursery measure, but due to
Illumination deficiency, the tobacco seedlings of cultivation are thin and weak, and resistance is poor, and also seedling stage is grown after transplanting, greatly affected the output and quality of tobacco leaf.Cause
This, temperature is relatively low, and light application time deficiency is one of the main reason for various regions cigarette district quality of tobacco is difficult to improve.Many researchers open
The research begun to winter tobacco seedlings light filling technology, such as：Tobacco seedlings are produced the different proportion red blue light of the reports such as Xiao Chunsheng and carbon nitrogen generation
Influence [the document thanked：Chinese agronomy circulates a notice of 2013,29 (22)：160-166], it was recently reported that LED plant growth lamp is a kind of use
The LED plant growth lamp for the pattern composition that chip is concrete-cored is in recent years in vegetables, flower shed and greenhouse supplementary light, his spy
Putting is：It is excellent that type of wavelength is abundant, luminous efficiency is high, thermic load amount is low, service life is long, energy-conserving and environment-protective and operating cost are low etc.
Point.But the concrete-cored tablet mode of chip has two：First is that blue chip adds the spectrum obtained by the pattern of red light chips to be
Line spectrum, and sunshine differ greatly, away from the growing environment of plant script；Second, the price of red light chips is blue chip
More than 2-3 times, while dual chip encapsulation mode itself has an increased the difficulty of technique, indirectly improve production cost, therefore make
The about application of the LED plant illumination devices of the concrete-cored tablet mode of chip.
For the above situation, the present invention is combined using red phosphor with blue chip prepares fluorescent material excitated type LED
Plant growth light source, fluorescent material are aluminate substrate, vanadic acid base status or nitride substrate, and fluorescent material is in 440-470nm ripples
Long scope can be excited effectively, have more apparent transmitting in 600-660nm wave-length coverages, can be used than more conventional high temperature solid-state
Method is prepared, and the price of red fluorescence powder used in every lamp bead is only 1/10th of red light chips, but can be reached
It is just the same, even preferably effect.The fluorescent material and organic silica gel are according to 1：X mass ratioes mix (x=4-20), are prepared
Fluorescent material excitated type LED broader spectrum can be provided, be more nearly between sunshine, and because fluorescent material species
It is abundant, the adjustment of spectrum can be easily realized very much, can be more prone to, accurately realize that spectrum customizes for different plants.Always
It, fluorescent material excitability LED plant growth light sources of the invention, which are applied to tobacco leaf seedling-raising, can effectively shorten growing-seedling period to 40-
60 days, and blade face is light green, well developed root system, cane is flexible and is not easily broken, and height of seedling is in 18-22cm, the high 12-14cm of stem, stem girth
2.0-3.0cm, root dry weight are more than 0.05g, and stem is great in 0.05g.Can be not only by using fluorescent material excitability LED
Tobacco leaf seedling-raising provides enough illumination, can also improve 2-5 DEG C of tobacco leaf seedling-raising Growth In Space temperature, is ensureing, is even improving tobacco leaf
On the premise of seedling quality, it can effectively shorten the time of tobacco leaf seedling-raising.The method is adapted to the ground of tobacco leaf seedling-raising phase illumination deficiency
Area carries out greenhouse light filling and full indoor raising of seedling, or annual unremitting full indoor raising of seedling, can promote on a large scale.
The content of the invention
It is an object of the invention to provide a kind of method for promoting tobacco seedling using LED plant growth light sources.
The present invention uses following technical scheme：
A kind of method for promoting tobacco seedling using LED plant growth light sources, red fluorescence powder is utilized in tobacco seedling
Encapsulate the obtained luminescent device of LED jointly with blue chip, to provide light source, used fluorescent material is aluminate-base
Matter, vanadic acid base status or nitride substrate material, excitation spectrum scope 440-470nm, emission spectrum scope 600-660nm.
Used phosphor emission main peak is between 630-660nm, and halfwidth is between 60-120nm.
When being assembled into luminescent device using fluorescent material and blue chip, the mass ratio of fluorescent material and organic silica gel is 1:4-
20。
During the LED light source of making, after red fluorescence powder and blue chip collocation, the integration at the red peak of red fluorescence powder
Area is 0.5-2 times of the blue peak integral area of blue chip.The red-blue ratio of the LED light source emission spectrum of making is 1:2-1:
Between 10.
During tobacco seedling, intensity of illumination is represented with photo-quantum efficiency, is controlled in 80-150 μm of ol/m2Between/s, illumination week
Phase 12h/d.
Fluorescent material of the present invention be used to be assembled into luminescent device with 440-460nm blue chips, and gained light source can basis
Need to be assembled into one kind in flat lamp, straight lamp and flying saucer lamp, available for the light filling of greenhouse tobacco leaf seedling-raising, or complete indoor tobacco leaf
Nursery, and it is particularly suitable for the latter.
The present invention combined using red phosphor with blue chip prepare fluorescent material excitated type LED plant growth light sources into
This is cheap, and effect protrudes, and can provide broader spectrum, is more nearly between sunshine, and because fluorescent material
Species is enriched, and can easily realize very much the adjustment of spectrum, can be more prone to, accurately realize that spectrum is determined for different plants
System.The fluorescent material excitability LED plant growth light sources of the present invention, which are applied to tobacco leaf seedling-raising, can effectively shorten growing-seedling period to 40-
60 days, and blade face is light green, well developed root system, cane is flexible and is not easily broken, and height of seedling is in 18-22cm, the high 12-14cm of stem, stem girth
2.0-3.0cm, root dry weight are more than 0.05g, and stem is great in 0.05g.Can be not only by using fluorescent material excitability LED
Tobacco leaf seedling-raising provides enough illumination, can also improve 2-5 DEG C of tobacco leaf seedling-raising Growth In Space temperature, is ensureing, is even improving tobacco leaf
On the premise of seedling quality, it can effectively shorten the time of tobacco leaf seedling-raising.The method is adapted to the ground of tobacco leaf seedling-raising phase illumination deficiency
Area carries out greenhouse light filling and full indoor raising of seedling, or annual unremitting full indoor raising of seedling, can promote on a large scale.
Brief description of the drawings
Fig. 1 is to launch the Sr in kind that main peak is 630nm red fluorescence powders2Si5N8：Eu and SEM figures；
Fig. 2 is that transmitting main peak is 630nm red fluorescence powders Sr2Si5N8：Eu XRD；
Fig. 3 is that transmitting main peak is 630nm red fluorescence powders Sr2Si5N8：Eu excitation and emission spectra figure；
Fig. 4 is the structural representation and pictorial diagram of LED flat lamp；
Fig. 5 is complete indoor tobacco leaf seedling-raising apparatus structure schematic diagram and pictorial diagram.
Embodiment
The present invention is further elaborated below, described is explanation of the invention and non-limiting.
Comparative example
Check experiment is carried out using 36W three-color fluorescent lamps and carries out tobacco leaf seedling-raising, two fluorescent lamps are placed in for floating
The top of disk, applied to tobacco leaf seedling-raising.28 DEG C of room temperature is kept, intensity of illumination is represented with photo-quantum efficiency, is controlled in 80-150 μ
mol/m2Between/s, periodicity of illumination 12h/d.Count the tobacco leaf seeding stage, the cross phase and into the time required to seedling stage (my god), and to seedling
The economical character (seedling color, height of seedling, stem are high, stem girth) of phase, physical index (root dry weight, stem weight, wide ratio, weight per leaf) and chemistry refer to
Mark (root activity, chlorophyll, carotenoid, nicotine equal size) is observed and detected, as a result as follows：
Tobacco leaf seedling-raising growth cycle and into seedling stage tobacco leaf seedling index parameter when the red-light spectrum of table 1 is 600nm
Embodiment 1
Nitride red fluorescent powder Sr is prepared under the conditions of high temperature and high pressure environment, 1700 DEG C of temperature2Si5N8：Eu (Fig. 1 and figure
2), the fluorescent material have under the conditions of 460nm it is very strong excite, have very strong emission spectrum (see Fig. 3) in 600nm positions,
By the fluorescent material and organic silica gel according to mass ratio 1：10 uniformly mixing, are assembled into LED plant growth light sources, and be assembled into LED
Flat lamp (see Fig. 4), assembling support, a length of 69cm, a width of 23cm, interlamellar spacing 17cm, for floating are carried out using iron material
The placement of disk, every layer of fluorescent material excitated type LED plant growth flat lamp for hanging 1 group of present invention, applied to complete indoor tobacco leaf seedling-raising
(see Fig. 5).28 DEG C of room temperature, intensity of illumination is represented with photo-quantum efficiency, is controlled in 80-150 μm of ol/m2Between/s, periodicity of illumination
12h/d.Count the tobacco leaf seeding stage, the cross phase and into the time required to seedling stage (my god), and to economical character (seedling color, the seedling into seedling stage
It is high, stem is high, stem girth), physical index (root dry weight, stem weight, wide ratio, weight per leaf) and chemical index (root activity, chlorophyll,
Carotenoid, nicotine equal size) observed and detected, it is as a result as follows：
Tobacco leaf seedling-raising growth cycle and into seedling stage tobacco leaf seedling index parameter when the red-light spectrum of table 2 is 600nm
Embodiment 2
Nitride red fluorescent powder Sr is prepared under the conditions of high temperature and high pressure environment, 1700 DEG C of temperature2Si5N8：Eu (Fig. 1 and figure
2), the fluorescent material have under the conditions of 460nm it is very strong excite, have very strong emission spectrum (see Fig. 3) in 610nm positions,
By the fluorescent material and organic silica gel according to mass ratio 1：10 uniformly mixing, are assembled into LED plant growth light sources, and be assembled into LED
Flat lamp (see Fig. 4), assembling support, a length of 69cm, a width of 23cm, interlamellar spacing 17cm, for floating are carried out using iron material
The placement of disk, the fluorescent material excitated type LED plant growth flat lamps of 1 group of invention of every layer of extension, applied to complete indoor tobacco leaf
Nursery (see Fig. 5).28 DEG C of room temperature, intensity of illumination is represented with photo-quantum efficiency, is controlled in 80-150 μm of ol/m2Between/s, illumination
Cycle 12h/d.Count the tobacco leaf seeding stage, the cross phase and into the time required to seedling stage (my god), and to the economical character (seedling into seedling stage
Color, height of seedling, stem are high, stem girth), physical index (root dry weight, stem weight, wide ratio, weight per leaf) and chemical index (root activity, leaf
Green element, carotenoid, nicotine equal size) observed and detected, it is as a result as follows：
Tobacco leaf seedling-raising growth cycle and into seedling stage tobacco leaf seedling index parameter when the red-light spectrum of table 3 is 610nm
Embodiment 3
Nitride red fluorescent powder Sr is prepared under the conditions of high temperature and high pressure environment, 1700 DEG C of temperature2Si5N8：Eu (Fig. 1 and figure
2), the fluorescent material have under the conditions of 460nm it is very strong excite, have very strong emission spectrum (see Fig. 3) in 620nm positions,
By the fluorescent material and organic silica gel according to mass ratio 1：10 uniformly mixing, are assembled into LED plant growth light sources, and be assembled into LED
Flat lamp (see Fig. 4), assembling support, a length of 69cm, a width of 23cm, interlamellar spacing 17cm, for floating are carried out using iron material
The placement of disk, every layer of fluorescent material excitated type LED plant growth flat lamp for hanging 1 group of present invention, applied to complete indoor tobacco leaf seedling-raising
(see Fig. 5).28 DEG C of room temperature, intensity of illumination is represented with photo-quantum efficiency, is controlled in 80-150 μm of ol/m2Between/s, periodicity of illumination
12h/d.Count the tobacco leaf seeding stage, the cross phase and into the time required to seedling stage (my god), and to economical character (seedling color, the seedling into seedling stage
It is high, stem is high, stem girth), physical index (root dry weight, stem weight, wide ratio, weight per leaf) and chemical index (root activity, chlorophyll,
Carotenoid, nicotine equal size) observed and detected, it is as a result as follows：
Tobacco leaf seedling-raising growth cycle and into seedling stage tobacco leaf seedling index parameter when the red-light spectrum of table 4 is 620nm
Embodiment 4
Nitride red fluorescent powder Sr is prepared under the conditions of high temperature and high pressure environment, 1700 DEG C of temperature2Si5N8：Eu (Fig. 1 and figure
2), the fluorescent material have under the conditions of 460nm it is very strong excite, have very strong emission spectrum (see Fig. 3) in 630nm positions,
By the fluorescent material and organic silica gel according to mass ratio 1：10 uniformly mixing, are assembled into LED plant growth light sources, and be assembled into LED
Flat lamp (see accompanying drawing 4), assembling support, a length of 69cm, a width of 23cm, interlamellar spacing 17cm, for floating are carried out using iron material
The placement of floating plate, the fluorescent material excitated type LED plant growth flat lamps of 1 group of invention of every layer of extension, applied to complete indoor cigarette
Leaf nursery (see Fig. 5).28 DEG C of room temperature, intensity of illumination is represented with photo-quantum efficiency, is controlled in 80-150 μm of ol/m2Between/s, light
According to cycle 12h/d.Count the tobacco leaf seeding stage, the cross phase and into the time required to seedling stage (my god), and to the economical character (seedling into seedling stage
Color, height of seedling, stem are high, stem girth), physical index (root dry weight, stem weight, wide ratio, weight per leaf) and chemical index (root activity, leaf
Green element, carotenoid, nicotine equal size) observed and detected, it is as a result as follows：
Tobacco leaf seedling-raising growth cycle and into seedling stage tobacco leaf seedling index parameter when the red-light spectrum of table 5 is 630nm
Embodiment 5
Nitride red fluorescent powder Sr is prepared under the conditions of high temperature and high pressure environment, 1700 DEG C of temperature2Si5N8：Eu (Fig. 1 and figure
2), the fluorescent material have under the conditions of 460nm it is very strong excite, have very strong emission spectrum (see Fig. 3) in 655nm positions,
By the fluorescent material and organic silica gel according to mass ratio 1：10 uniformly mixing, are assembled into LED plant growth light sources, and be assembled into LED
Flat lamp (see Fig. 4), assembling support, a length of 69cm, a width of 23cm, interlamellar spacing 17cm, for floating are carried out using iron material
The placement of disk, the fluorescent material excitated type LED plant growth flat lamps of 1 group of invention of every layer of extension, applied to complete indoor tobacco leaf
Nursery (see Fig. 5).28 DEG C of room temperature, intensity of illumination is represented with photo-quantum efficiency, is controlled in 80-150 μm of ol/m2Between/s, illumination
Cycle 12h/d.Count the tobacco leaf seeding stage, the cross phase and into the time required to seedling stage (my god), and to the economical character (seedling into seedling stage
Color, height of seedling, stem are high, stem girth), physical index (root dry weight, stem weight, wide ratio, weight per leaf) and chemical index (root activity, leaf
Green element, carotenoid, nicotine equal size) observed and detected, it is as a result as follows：
Tobacco leaf seedling-raising growth cycle and into seedling stage tobacco leaf seedling index parameter when the red-light spectrum of table 6 is 655nm
From above example, when emission spectrum changes from 600 to 660nm, the red of red spectrum in spectral composition
Composition becomes redder, and the assimilation effect of plant is better, but more than 660nm after, the luminous efficiency of fluorescent material declines to a great extent, light fixture
The advantage of energy-conservation is no longer.
The present invention uses above example identical condition, but can also be reached using aluminate substrate, vanadate as matrix respectively
The effect similar to above example.
Claims (1)
- A kind of 1. method for promoting tobacco seedling using LED plant growth light sources, it is characterised in that in tobacco seedling using red Color fluorescent material and blue chip encapsulate the luminescent device of obtained LED jointly, and to provide light source, used fluorescent material is Aluminate substrate, vanadic acid base status or nitride substrate material, excitation spectrum scope 440-470nm, emission spectrum scope 600-660nm；Used phosphor emission main peak is between 630-660nm, and halfwidth is between 60-120nm；When being assembled into luminescent device using fluorescent material and blue chip, the mass ratio of fluorescent material and organic silica gel is 1:4-20；During the LED light source of making, after red fluorescence powder and blue chip collocation, the integral area at the red peak of red fluorescence powder It is 0.5-2 times of the blue peak integral area of blue chip；The red-blue ratio of the LED light source emission spectrum of making is 1:2-1:Between 10；During tobacco seedling, intensity of illumination is represented with photo-quantum efficiency, is controlled in 80-150 μm of ol/m2Between/s, periodicity of illumination 12h/ d。
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| CN106171397A (en) * | 2016-07-08 | 2016-12-07 | 湖南农业大学 | A kind of Herba Anoectochili roxburghii cultural method in artificial light type plant factor |
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| CN106922506B (en) * | 2017-03-03 | 2022-12-02 | 福建省中科生物股份有限公司 | Artificial light environment cultivation method for tobacco |
| CN108617325A (en) * | 2018-06-01 | 2018-10-09 | 深圳市昀晨光电有限公司 | A method of promote orchid to grow using LED plant growth lamp |
| CN108834742A (en) * | 2018-06-01 | 2018-11-20 | 深圳市昀晨光电有限公司 | A method of promote Growth of Pleurotus eryngii to develop using LED plant growth light source |
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