CN102415300A - Application of LED (Light Emitting Diode) in plant cultivation - Google Patents
Application of LED (Light Emitting Diode) in plant cultivation Download PDFInfo
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- CN102415300A CN102415300A CN2011102202790A CN201110220279A CN102415300A CN 102415300 A CN102415300 A CN 102415300A CN 2011102202790 A CN2011102202790 A CN 2011102202790A CN 201110220279 A CN201110220279 A CN 201110220279A CN 102415300 A CN102415300 A CN 102415300A
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Abstract
The invention provides application of an LED (Light Emitting Diode) in plant cultivation, in particular application of a lamp tube type LED as a light source in plant cultivation. According to the invention, the utilization rate of a light source can be further determined to be improved by adopting a specific mixture ratio of red light to blue light and the growth amount of plants can be effectively improved by adopting specific illumination intensity through research. The lamp tube type LED used as the light source can be widely used for cultivating the plants, in particular for greenhouse plants and can be used for improving the growth efficiency of the plants and reducing energy consumption. The LED is a cold light source, so that the LED can be closed to the plants without burning the plants. The invention further provides a lamp tube type LED light supplementing rack. The height of the light supplementing rack can be adjusted. In addition, the height of each LED lamp can be adjusted according to the heights of the plants. The lamp tube type LED light supplementing rack can be used for supplementing light to the plants from the front side or the side.
Description
Technical field
The present invention relates to the new type light source that plant growing is used.
Background technology
A suitable subenvironment of control easily can be created to plant in the greenhouse, makes plant not receive the influence of season and environment as far as possible.Greenhouse culture technique has been widely used in the every field of plant cultivation now, and for example we still can have fresh vegetables in the winter time, and Here it is utilizes the greenhouse to carry out the result of vegetables in improper season cultivation.In addition, adopt greenhouse culture technique also can cultivate the plant of different latitude, the various ornamental plantss of greenhouse culture are for example all arranged in the most plants garden.
The natural daylights that adopt of hothouse plants growth for a long time more, but, perhaps, therefore often need artificial light filling owing to the feasible day illumination time of reason in season is too short because greenhouse structure and material are lossy to solar irradiation.Light filling light source commonly used at present is conventional fluorescent lamps and high-pressure mercury lamp etc.Shortcoming such as their ubiquity life-spans are short, calorific value is big and luminous efficiency is undesirable.And plant is low to the availability of these light sources, and the illumination more than 50% is invalid illumination, can not effectively be utilized by plant, has wasted the energy greatly.
LED (Light Emitting Diode); Light emitting diode is a kind of solid-state semiconductor devices, and it can directly be converted into light to electricity; Compare with the conventional artificial light source, have characteristics such as photoelectric conversion rate height, volume is little, the life-span is long, wavelength is fixed, light intensity is adjustable, calorific value is low.The early stage main indication light source as instrument and meter of LED, various afterwards photochromic LED have obtained extensive use in traffic lights and large tracts of land display screen, produced good economic benefits and social benefit.Yet, also do not find LED as the application of plant cultivation at present with light source.
Summary of the invention
The object of the present invention is to provide the application of LED in plant cultivation.
The wave-length coverage of photosynthesis of plant mainly concentrates on 400nm between the 700nm.In (380nm-760nm), the light of plant absorbing accounts for the 60%-65% of physiological radiation light in the visible spectrum of light source, is mainly the blood orange light of 610nm-720nm.
The inventor attempts obtaining the light source that plant efficient utilizes through the LED lamp tube type permutation and combination of Different Red blue light proportioning.The result shows that adopting ruddiness is with the blue light ratio at 6: 4～8: 2 o'clock, and the efficient of plant utilization is higher, and preferred ruddiness is 7: 3 with the blue light ratio.Intensity of illumination is controlled at 40---100-μ molm
-2S
-1, be preferably 60--80 μ molm
-2S
-1
Ruddiness described in the present invention is meant that wavelength is the light wave of 640nm, and said blue light is the light wave of wavelength 450nm.
The application of LED of the present invention in plant cultivation is preferably the application in the hothouse plants cultivation, but is not limited thereto, for example can also be as the light source of open air vegetation cultivation.
It is a kind of with the plant cultivation method of LED as the light filling light source that the present invention also provides, and this method combines spectrum of sunlight and intensity of illumination, and through the intensity of illumination of control LED and the proportioning of red blue light, the optimal light that reaches plant cultivation is shone.
The present invention also provides a kind of LED light filling frame that is used for plant cultivation, comprises support body, has a suspension plate that is used to hang the LED fluorescent tube in the support body upper end, below said suspension plate, is hung with the LED fluorescent tube.Said LED fluorescent tube links to each other with a controller, the switch and the intensity of illumination of said controller control CCFL fluorescent tube.In addition, the adjustable height of said suspension plate and/or LED fluorescent tube, especially the height of every LED fluorescent tube is adjustable separately.
The present invention has following advantage:
1, because LED compares conventional light source, its optoelectronic transformation efficiency is high, and effectively illumination is high, and the life-span is long, so can energy savings, reduces cost;
2, because the LED volume is little, be cold light source, do not produce heat, therefore can shorten the distance between the light filling plant; Improve the light filling effect, can also improve the cultivation amount of unit are, thereby improve space availability ratio; In addition, because LED does not produce heat, therefore can reduce matrix evaporation drying speed;
3, can adopt the LED of fluorescent tube form, Different Red blue light proportioning can satisfy the Different Light demand of different plants with white light.Help improving the utilization of the energy.
Description of drawings
Fig. 1 is iris one year seedling amount of growth observed result, wherein A: Chinese small iris ♀ * Siberian iris ' Lichterfeldius ' ♂; B: Tibet iris ♀ * yellow flag ♂;
Fig. 2 is LED light filling and seedling and contrast (right side flowerpot), wherein A: Chinese small iris ♀ * Siberian iris ' Lichterfeldius ' ♂; B: Tibet iris ♀ * yellow flag ♂;
Fig. 3 is the structural representation of LED light filling frame of the present invention
Fig. 4 is the upward view of Fig. 3;
Fig. 5 is the end view of Fig. 3.
Embodiment
Following examples further specify content of the present invention, but should not be construed as limitation of the present invention.Under the situation that does not deviate from the present invention's spirit and essence, modification or replacement to the inventive method, step or condition are done all belong to scope of the present invention.
If do not specialize the conventional means that used technological means is well known to those skilled in the art among the embodiment.
Embodiment 1: iris led light source forcing culture test
Hybrid growth of seedling amount to iris is observed, and finds that this time of 1 month growth stops basically in late December to late January in most of hybrid combination, and blade is withered and yellow, and the dormancy phenomenon appears in atrophy.With Chinese small iris ♀ * Siberian iris ' Lichterfeldius ' ♂, these two hybrid combinations of Tibet iris ♀ * yellow flag ♂ are example.
Result of the test shows (Fig. 1), Chinese small iris ♀ * Siberian iris ' Lichterfeldius ' ♂, Tibet iris ♀ * yellow flag ♂; The hybrid seedling of these two hybrid combinations gets into resting state in December 27 to January 21; Basically stop growing, at the beginning of 3 months, just recover growth, grow new blade.
Handle for the seedling light filling that gets into resting state, adopt diode (LED is red: blue 7: 3), light intensity is 2500lux, and the light filling time is that the 18:00 of every day is to 08:00 on next day.Light filling was handled after one month, carried out the hybrid seedling that light filling handles and compared with contrast, and amount of growth obviously is far longer than contrast, explained that light filling can break the dormancy phenomenon of iris seedling and (see figure: 2).
1. materials and methods
As the light filling light source, the tawny daylily seedling carries out the light filling test from February 14,2009 November 14 to next year in the greenhouse with LED, and light intensity is 2500lux; The light filling time is that the 18:00 of every day is to 08:00 on next day; Contrast is set, and three repetitions are thrown into vegetable material under the light source at random; Measured its number of blade, plant height, flowering time and the number of blooming, and calculated clean amount of growth in per 15 days.
2. result and analysis
The number of blade, length of blade, the width of blade result that add up tawny daylily and contrast respectively are as shown in table 1 respectively:
The statistics of table 1 light filling processed group
Can find out that from table the increase of the number of blade after tawny daylily is handled, length of blade, the clean amount of growth of width of blade is significantly higher than control group.The tawny daylily light filling is handled after 30 days and bud occurred, and it is vigorous to bloom after 30 days, average 4 of every strain flower amount, and after impinging upon 45 days, budding average 2 of flower amount.Light filling was handled advance flowering period about 15 days, and every strain amount of blooming also has remarkable increase, has improved ornamental quality when having shifted to an earlier date the florescence.
According to the method described above, carry out light filling experiment to whisker iris, day lily and garden columbine are arranged, the result shows that adopt the LED light filling to shift to an earlier date than the adjoining tree that does not have light filling bloomed in about 20 days.With Lilium tenuifolium, towards the Asia lily kind of fresh lily bulb, tiger lily and cultivation as experimental subjects, the result shows that the LED light filling blooms significantly in advance than the adjoining tree that does not have light filling.
Like Fig. 3, shown in 4 and 5, a kind of LED light filling frame that is used for plant cultivation of the present invention comprises support body 1, have in support body 1 upper end one be used to hang the LED fluorescent tube suspension plate 2, below said suspension plate, be hung with several LED fluorescent tubes 3.Said LED fluorescent tube 3 links to each other with a controller, the switch and the intensity of illumination of said controller control LED fluorescent tube 3.The height of LED can be regulated.The adjustable height of said suspension plate can be adjusted the height of suspension plate on support body, perhaps adjusts the height of support body, realizes the adjustment of suspension plate height, and in addition, the height of each LED fluorescent tube can also be adjusted.
Therefore can be very near because LED is a cold light source apart from plant, the plant of can not burning.The height of light filling shelf is adjustable.The height of every LED lamp also is to regulate according to the height of plant.Not only can be from just carrying out light filling from its side in the face of the plant light filling.
Claims (10)
1.LED as the application in the plant cultivation light source.
2. application as claimed in claim 1 is characterized in that, the ruddiness in the said light source is 6: 4～8: 2 with the blue light ratio.
3. according to claim 1 or claim 2 application is characterized in that intensity of illumination is 40～90 μ molm
-2S
-1
4. application as claimed in claim 3 is characterized in that, intensity of illumination is 60～80 μ molm
-2S
-1
5. like each described application of claim 1～3, it is characterized in that said plant cultivation is greenhouse culture.
6. a plant cultivation method is characterized in that, this method with LED as the light filling light source.
7. method as claimed in claim 6 is characterized in that, this method combines daylight illumination, and through the intensity of illumination of control LED and the proportioning of red blue light, the optimal light that reaches plant cultivation is shone.
8. LED light filling frame that is used for plant cultivation; Comprise support body; It is characterized in that having a suspension plate that is used to hang the LED fluorescent tube, below said suspension plate, be hung with the LED fluorescent tube in the support body upper end; Said LED fluorescent tube links to each other with a controller, the switch and the intensity of illumination of said controller control LED fluorescent tube
9. LED light filling frame as claimed in claim 8 is characterized in that, the adjustable height of said suspension plate and/or LED fluorescent tube.
10. claim 8 or 9 application of said LED light filling frame in plant cultivation.
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| CN2011102202790A CN102415300A (en) | 2011-08-02 | 2011-08-02 | Application of LED (Light Emitting Diode) in plant cultivation |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771344A (en) * | 2012-07-30 | 2012-11-14 | 西安金诺光电科技有限公司 | Plant seedling culture method |
| CN102972278A (en) * | 2012-12-31 | 2013-03-20 | 安徽科技学院 | Method for cultivating brassica chinensis to bloom indoors with LED light source |
| CN103404392A (en) * | 2013-08-16 | 2013-11-27 | 单沛祥 | Efficient planting shed and planting method |
| CN103557480A (en) * | 2013-11-07 | 2014-02-05 | 北京希睿思科技有限公司 | Plant growth lamp |
| CN104012325A (en) * | 2014-05-30 | 2014-09-03 | 北京御德达科技发展有限公司 | Vegetable growing rack |
| CN104303869A (en) * | 2014-11-05 | 2015-01-28 | 瑞丽滇蔗农业科技开发有限公司 | Light source combining device and method for inducing sugarcane trees to blossom |
| CN107114184A (en) * | 2017-05-05 | 2017-09-01 | 北京林业大学 | A kind of blueberry strong sprout and multi-functional culture technique based on mixed color LED light filling |
| CN110915468A (en) * | 2019-12-24 | 2020-03-27 | 成都市三禾田生物技术有限公司 | Method for increasing glucosinolate content of broccoli sprouting vegetable |
| CN114568241A (en) * | 2022-03-03 | 2022-06-03 | 上海应用技术大学 | Method for promoting day lily to bloom in advance |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771344A (en) * | 2012-07-30 | 2012-11-14 | 西安金诺光电科技有限公司 | Plant seedling culture method |
| CN102972278A (en) * | 2012-12-31 | 2013-03-20 | 安徽科技学院 | Method for cultivating brassica chinensis to bloom indoors with LED light source |
| CN102972278B (en) * | 2012-12-31 | 2013-11-13 | 安徽科技学院 | Method for cultivating brassica chinensis to bloom indoors with LED light source |
| CN103404392A (en) * | 2013-08-16 | 2013-11-27 | 单沛祥 | Efficient planting shed and planting method |
| CN103404392B (en) * | 2013-08-16 | 2015-11-04 | 单沛祥 | A kind of efficient planting shed and implantation methods |
| CN103557480A (en) * | 2013-11-07 | 2014-02-05 | 北京希睿思科技有限公司 | Plant growth lamp |
| CN104012325A (en) * | 2014-05-30 | 2014-09-03 | 北京御德达科技发展有限公司 | Vegetable growing rack |
| CN104303869A (en) * | 2014-11-05 | 2015-01-28 | 瑞丽滇蔗农业科技开发有限公司 | Light source combining device and method for inducing sugarcane trees to blossom |
| CN104303869B (en) * | 2014-11-05 | 2017-08-01 | 瑞丽滇蔗农业科技开发有限公司 | The illuminant combined device and method of a kind of induction sugarcane florescence |
| CN107114184A (en) * | 2017-05-05 | 2017-09-01 | 北京林业大学 | A kind of blueberry strong sprout and multi-functional culture technique based on mixed color LED light filling |
| CN110915468A (en) * | 2019-12-24 | 2020-03-27 | 成都市三禾田生物技术有限公司 | Method for increasing glucosinolate content of broccoli sprouting vegetable |
| CN114568241A (en) * | 2022-03-03 | 2022-06-03 | 上海应用技术大学 | Method for promoting day lily to bloom in advance |
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Application publication date: 20120418 |