CN105284446A - Method utilizing LED plant growth light source to promote seedling nursing of solanaceous vegetables - Google Patents
Method utilizing LED plant growth light source to promote seedling nursing of solanaceous vegetables Download PDFInfo
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- CN105284446A CN105284446A CN201510629778.3A CN201510629778A CN105284446A CN 105284446 A CN105284446 A CN 105284446A CN 201510629778 A CN201510629778 A CN 201510629778A CN 105284446 A CN105284446 A CN 105284446A
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- light source
- solanaceous vegetables
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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
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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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Abstract
The invention relates to a method utilizing LED plant growth light source to promote seedling nursing of solanaceous vegetables. First, red phosphor MSiA1N3: Eu2+(Ms equals to either Ca, Sr, or Ba) or K2AF6: Mn4+( Ms equals to either Si, Al, Ti or Ge); a laser spectrum is within a 300 to 470nm wavelength range and an emission spectrum is within a 600-660nm range; the phosphor and organic silica gel are mixed according to weight by a proportion of 1 to 1 and then sealed with a blue light chip to form a light source component; and the light source can be applied to seedling nursing for solanaceous vegetables. The emission spectrum can be well matched with a plant photosynthesis absorbing spectrum via the phosphor stimulating LED lamp, so high light-supplementing efficiency can be achieved; in light of solanaceous vegetable growth, seedlings can grow quickly and healthily; dry weight and fresh weight can be obviously improved; seedling nursing time can be shortened; the method utilizing LED plant growth light source to promote seedling nursing of solanaceous vegetables can be applied to fields of indoor seedling-nursing, cultivation and seedling factorization for solanaceous vegetables.
Description
Technical field:
The invention belongs to the technical field of LED light source Promoting plant growth, particularly a kind of method utilizing LED plant growth light source to promote solanaceous vegetables nursery.
Background technology:
Solanaceous vegetables refers to the vegetables of Solanaceae class, comprises gumbo, capsicum and tomato etc.There are the features such as output is high, and picking time is long, nutritious.Wherein the Vitamin C content of capsicum is the highest, and every 100g fresh goods reaches 100mg, is 3-4 times of general vegetables.Gumbo, also known as hair eggplant, originates in Africa, is more common in southern china.Its edible portion is fruit pod, point green and redness two kinds, and the tender and crisp succulence of mouthfeel, lubricious oiliness, fragrance is unique, and seed can extract oil, and has very high nutritive value.Tomato is delicious, can replace fruit, becomes one of vegetables that the common people make earnest efforts.
Along with the progress of science and technology and the fast development of agricultural and biological industry, the effective utilization of plant to light source has broken through the simple restriction relying on sunshine, and the deficiency utilizing artificial light source to supplement lamp has become the important means of environmental Kuznets Curves growth and development of plants.The artificial light source used in agricultural and biological field for a long time mainly contains fluorescent lamp, incandescent lamp and sodium vapor lamp etc.Wherein high-pressure mercury lamp is the light source that luminous efficiency and effective photosynthetic efficiency are higher, but power consumption is large, and emission spectrum can not match with photosynthesis of plant absorption spectrum well, and light filling efficiency is low; And produce a lot of thermal radiation, and can not to plant close to irradiating, not high to plant growth launching efficiency, do artificial light source, cost is very high.Therefore, many researchers constantly find the light source being more applicable to doing plant light compensation, researcher finds that the LED plant growth lamp that chip adds chip mode compares high-pressure mercury lamp, incandescent lamp, other the artificial light source such as fluorescent lamp is compared, and LED volume is little, and power consumption is low, use Shou Changchang, brightness is high, and heat is low and environmental protection is sturdy and durable.But the spectrum that the pattern that this plant growth lamp source adopts blue chip to add red light chips obtains is line spectrum, and sunshine differs greatly, away from plant growing environment originally; And the price of red light chips is more than 2-3 times of blue chip, dual chip encapsulation mode itself has an increased the difficulty of technique simultaneously, indirectly improves production cost, therefore constrains the application that chip adds the LED plant illumination device of chip mode.
In order to overcome the deficiency of above-mentioned artificial light source, the invention provides a kind of red phosphor and blue chip combines the fluorescent material excitated type LED plant growth light source prepared.Wherein fluorescent material is aluminate substrate, vanadate matrix or nitride substrate, fluorescent material can effectively excite in 440-470nm wave-length coverage, have in 600-660nm wave-length coverage and more obviously launch, more conventional high temperature solid-state method can be adopted to prepare, the price of every lamp pearl red fluorescence powder used is only 1/10th of red light chips, but can reach just the same, even better effect.This fluorescent material and organic silica gel are according to 1:x mass ratio mixing (x=1-20), the fluorescent material excitated type LED prepared can provide wider spectrum, and it is more close between sunshine, and because the abundant species of fluorescent material, the adjustment of spectrum can be realized very easily, can be more prone to, accurately for different plant realizes spectrum customization.In a word, fluorescent material excitated type LED emission spectrum of the present invention can match with photosynthesis of plant absorption spectrum well, does light filling efficiency high; In the growth of solanaceous vegetables, not only growth of seedling is healthy and strong fast, and dry weight, fresh weight significantly improve, and can shorten the seedling time.The present invention can be applied to the field such as batch production of the indoor fast seedling growing of solanaceous vegetables, cultivation, seedling.
Summary of the invention
The object of this invention is to provide a kind of red phosphor and blue chip and combine the fluorescent material excitated type LED plant growth light source prepared for promoting the method for the nursery of solanaceous vegetables, to be applied to the field such as batch production of the indoor fast seedling growing of solanaceous vegetables, cultivation, seedling.
Object of the present invention is achieved through the following technical solutions:
Utilize LED plant growth light source to promote a method for solanaceous vegetables nursery, utilize when solanaceous vegetables nursery red fluorescence powder and blue chip jointly to encapsulate the LED obtained and light source is provided, adopt phosphor structure formula to be MSiAlN
3: Eu
2+, one or several in M=Ca, Sr, Ba; Or structural formula is K
2aF
6: Mn
4+, one or several in A=Si, Al, Ti, S; The excitation spectrum of the fluorescent material adopted drops on 300-470nm wave-length coverage, and emission spectrum is in 600-660nm wave-length coverage.
Adopt the transmitting main peak of fluorescent material between 630-660nm, halfwidth is between 60-120nm.
In said method by fluorescent material and organic silica gel according to mass ratio 1:(1-20) mixing, for the preparation of LED plant growth lamp light source after baking-curing.
In the LED light source spectrum obtained in said method, the integral area ratio of blue chip gained blue spectrum and fluorescent material gained red-light spectrum is 1:(5-10).
Solanaceous vegetables described in said method comprises capsicum, gumbo and tomato.
In said method during solanaceous vegetables nursery, intensity of illumination photo-quantum efficiency represents, controls at 100-200 μm of ol/m
2between/s; Periodicity of illumination 12h/d.
Light source of the present invention can be assembled into various light fixture as required, as one or several in LED flat lamp, LED straight lamp and LED flying saucer lamp.
The present invention utilizes LED plant growth light source to promote the method for solanaceous vegetables nursery, specifically also comprises following content:
(1) preparation of seedling: solanaceous vegetables seed is placed on vernalization in the insulating box of 20-30 DEG C (except tomato seeds of the present invention), after vernalization 1-10d, plants in special seedling substrate and carries out floating seedlings;
(2) light treatment: cultivate under floating basin being placed on respectively fluorescent material excitated type LED plant growth lamp of the present invention;
The preparation of fluorescent material: adopt high temperature solid-state method, prepare red fluorescence powder MSiAlN under the condition of 1500-1700 DEG C, 1.0-2.0 MPa
3: Eu
2+(in M=Ca, Sr, Ba one or several), or red fluorescence powder K is prepared under 1200-1500 DEG C, 1.0-2.0MPa
2aF
6: Mn
4+(in A=Si, Al, Ti, S one or several).This fluorescent material glowed, effectively can excite in 300-470nm wave-length coverage, have in 600-660nm wave-length coverage and launch more by force, and launch main peak between 630-660nm, halfwidth between 60-120nm, and its intensity the 0.5-2 for chip excitation intensity doubly between.
Fluorescent material excitated type LED plant growth lamp makes: obtained red fluorescence powder and 440-460nm blue chip are assembled into luminescent device, and the ratio of fluorescent material and organic silica gel is 1:(1-20) between; Then several luminescent devices are assembled into required flat lamp.
Beneficial effect of the present invention: the invention provides a kind of method utilizing LED plant growth light source to promote solanaceous vegetables nursery.The method of LED plant growth light source of the present invention nursery has the following advantages: simple to operate, fast, effective; Energy-saving and environmental protecting; Cost is low; Growth of seedling is quick, reduces the time of nursery.The inventive method and result are that solanaceous vegetables indoor production provides reliable technical scheme.
Accompanying drawing explanation
Fig. 1 is red fluorescence powder Sr
0.5ca
0.5siAlN
3: Eu
2+excitation and emission spectra figure;
Fig. 2 is red fluorescence powder Sr
0.5ca
0.5siAlN
3: Eu
2+pictorial diagram and SEM figure;
Fig. 3 is plant growth lamp light source light spectrogram of the present invention and chromaticity coordinates figure;
Fig. 4 is indoor plantation Hot Pepper Seedling apparatus structure schematic diagram;
Fig. 5 is the spectrogram of control group fluorescent lamp.
Embodiment
Below the present invention is elaborated further, described in be explanation of the invention and non-limiting.
Embodiment 1
Adopt high temperature solid-state method, under the condition of 1500-1700 DEG C, 1.0-2.0 MPa, prepare red fluorescence powder Sr
0.5ca
0.5siAlN
3: Eu
2+(it is launched exciting light spectrogram and sees Fig. 1, in kindly sees Fig. 2 with Electronic Speculum figure) mixes according to mass ratio 1:10 with organic silica gel, is packaged into light source device (see Fig. 3 A) with blue chip; Pepper seed moves on in special seedling substrate carry out vernalization 6d in 25 DEG C of insulating boxs after and carries out floating seedlings, floating basin to be placed on respectively on the support being provided with LED plant growth light source (Fig. 4 is shown in by schematic diagram) and (Fig. 5 is shown in by fluorescent lamp spectrum schematic diagram) on the support of fluorescent lamp is installed, brandreth director is 69cm, wide is 23cm, and interlamellar spacing is 17cm; Intensity of illumination photo-quantum efficiency represents, controls at 100-200 μm of ol/m
2between/s; Periodicity of illumination 12h/d.
After waiting to cultivate 45d, measure seedling morphology (plant height, stem are thick, root is long, fresh sample quality, dry sample quality, seedling vigorous index) and the physiological property (soluble sugar, improving activity of root system, carotenoid, chlorophyll) of capsicum under different light process respectively, the results are shown in Table 1 and table 2:
Table 1LED plant growth lamp source is on the impact of pepper seedling
Wherein seedling vigorous index=stem thick/plant height * complete stool dry sample quality
Table 2 fluorescent lamp is on the impact of pepper seedling
Wherein seedling vigorous index=stem thick/plant height * complete stool dry sample quality
Embodiment 2
By red fluorescence powder Sr
0.5ca
0.5siAlN
3: Eu
2+mix according to mass ratio 1:5 with organic silica gel, be packaged into light source device (see Fig. 3 B) with blue chip; Gumbo seed moves on in special seedling substrate carry out vernalization 2d in 25 DEG C of insulating boxs after and carries out floating seedlings, floating basin is placed on respectively on the trestle table being provided with LED plant growth light source and (Fig. 5 is shown in by fluorescent lamp spectrum schematic diagram) on the trestle table of fluorescent lamp is installed, brandreth director is 69cm, wide is 23cm, and interlamellar spacing is 17cm.Intensity of illumination photo-quantum efficiency represents, controls at 100-200 μm of ol/m
2between/s; Periodicity of illumination 12h/d.
After waiting to cultivate 45d, measure seedling morphology (plant height, stem are thick, root is long, fresh sample quality, dry sample quality, seedling vigorous index) and the physiological property (soluble sugar, improving activity of root system, carotenoid, chlorophyll) of gumbo under different light process respectively, the results are shown in Table 3 and table 4:
Table 3LED plant growth lamp source is on the impact of gumbo seedling
Wherein seedling vigorous index=stem thick/plant height * complete stool dry sample quality
Table 4 fluorescent lamp is on the impact of gumbo seedling
Wherein seedling vigorous index=stem thick/plant height * complete stool dry sample quality
Embodiment 3
By red fluorescence powder Sr
0.5ca
0.5siAlN
3: Eu
2+mix according to mass ratio 1:3 with organic silica gel, be packaged into light source device (see Fig. 3 C) with blue chip; Be soaked in water after tomato seeds is carried out airing sterilization, then seed is moved on in special seedling substrate and carry out floating seedlings, floating basin is placed on respectively on the iron stand being provided with LED plant growth light source and (Fig. 5 is shown in by fluorescent lamp spectrum schematic diagram) on the trestle table of fluorescent lamp is installed, brandreth director is 69cm, wide is 23cm, and interlamellar spacing is 17cm.Intensity of illumination photo-quantum efficiency represents, controls at 100-200 μm of ol/m
2between/s; Periodicity of illumination 12h/d.
After waiting to cultivate 45d, measure seedling morphology (plant height, stem are thick, root is long, fresh sample quality, dry sample quality, seedling vigorous index) and the physiological property (soluble sugar, improving activity of root system, carotenoid, chlorophyll) of tomato under different light process respectively, the results are shown in Table 5 and table 6:
Table 5LED plant growth lamp source is on the impact of tomato seedling
Wherein seedling vigorous index=stem thick/plant height * complete stool dry sample quality
Table 6 fluorescent lamp is on the impact of tomato seedling
Wherein seedling vigorous index=stem thick/plant height * complete stool dry sample quality
The present invention prepares red fluorescence powder K under 1200-1500 DEG C, 1.0-2.0MPa
2siF
6: Mn
4+
And with embodiment 1,2 conditions identical with 3 prepare LED light source, be also used for capsicum with the same terms, the nursery of gumbo and tomato, can reach the effect similar to embodiment 1-3.
In the present invention with capsicum, gumbo and tomato as an example, set forth under fluorescent material excitated type LED light source of the present invention, no matter capsicum, gumbo and tomato seedling are at plant height, the seedling morphology such as stem is thick, root is long, or effective compared with the growth of seedling under conventional fluorescent lamps on the content of availability sugar, improving activity of root system, carotenoid content and chlorophyll content.But therefore can not be interpreted as limitation of the scope of the invention, the present invention can be widely used in solanaceous vegetables.
Claims (6)
1. utilize LED plant growth light source to promote a method for solanaceous vegetables nursery, it is characterized in that, utilize when solanaceous vegetables nursery red fluorescence powder and blue chip jointly to encapsulate the LED obtained and light source is provided, adopt phosphor structure formula to be MSiAlN
3: Eu
2+, one or several in M=Ca, Sr, Ba; Or structural formula is K
2aF
6: Mn
4+, one or several in A=Si, Al, Ti, S; The excitation spectrum of the fluorescent material adopted drops on 300-470nm wave-length coverage, and emission spectrum is in 600-660nm wave-length coverage.
2. method according to claim 1, is characterized in that, adopt the transmitting main peak of fluorescent material between 630-660nm, halfwidth is between 60-120nm.
3. method according to claim 1, is characterized in that, by fluorescent material and organic silica gel according to mass ratio 1:(1-20) mixing, for the preparation of LED plant growth lamp light source after baking-curing.
4. the method according to claim 1 or 2 or 3, is characterized in that, in LED light source spectrum, the integral area ratio of blue chip gained blue spectrum and fluorescent material gained red-light spectrum is 1:(5-10).
5. the method according to claim 1 or 2 or 3, it is characterized in that, solanaceous vegetables comprises capsicum, gumbo and tomato.
6. method according to claim 4, is characterized in that, during solanaceous vegetables nursery, intensity of illumination photo-quantum efficiency represents, controls at 100-200 μm of ol/m
2between/s; Periodicity of illumination 12h/d.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106171398A (en) * | 2016-07-08 | 2016-12-07 | 湖南农业大学 | The artificial cultivation method that a kind of Stigma Croci indoor culture is bloomed |
| CN106171728A (en) * | 2016-07-08 | 2016-12-07 | 湖南普斯赛特光电科技有限公司 | A kind of Herba Rosmarini Officinalis cultural method in artificial light type plant factor |
| 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 |
| CN109220296A (en) * | 2018-09-20 | 2019-01-18 | 杭州小太阳农业科技有限公司 | A kind of fruits and vegetables light compensating lamp of band UV-B |
| CN110224054A (en) * | 2019-05-10 | 2019-09-10 | 深圳清华大学研究院 | Plant illumination monochromatic LED and plant lamp |
| CN112314228A (en) * | 2020-11-10 | 2021-02-05 | 华南农业大学 | Method for promoting tomato fruit development and lycopene accumulation through red light supplement |
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| CN112314228A (en) * | 2020-11-10 | 2021-02-05 | 华南农业大学 | Method for promoting tomato fruit development and lycopene accumulation through red light supplement |
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Application publication date: 20160203 |