Application of the hottest plant lighting system i

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Application of plant lighting system in greenhouse

through years of efforts, plant lighting system has been mature and applied abroad, and the direct input-output ratio has completely exceeded expectations. It is far from the noble image you imagine. As long as we do a good job in technology popularization, it is expected to be applied in large quantities in China. The operation cost of the plant lighting system has fully reached the acceptable level of China's greenhouse market. It does not have to be used in Modern Greenhouses with a high degree of mechanization, but also in China's traditional solar greenhouses

in the production of solar greenhouse, although China's labor cost is increasing year by year, it still has obvious advantages compared with Europe and the United States. The key factors restricting plant growth, such as temperature, humidity, CO2

concentration, can achieve the same effect through artificial intervention in China's solar greenhouse. Therefore, the control factor that really affects the output and quality of crops is the light intensity. Especially in northern areas, the same output and quality as modern greenhouses can be achieved through the light supplement system

the distribution of spectral components needs to be analyzed for light compensation of plant growth, and the light compensation system can provide spectral components for plant growth characteristics. So, what can the fill light system bring? The first is high output, the second is high quality, and the third is controllable in the growth period. In short, it is to truly realize the industrialization of agriculture

the plant lighting system is composed of light source, electrical appliances and lamps. The common light source of fill light system is mainly plant growth lamp. In addition, many enterprises are also producing LED light sources that have attracted the attention of the industry. At present, LED light source is mostly used in short distance plant breeding, and this light source also has obvious spectral component advantages in this regard. As for the LED fill light system, German lighting expert OSRAM and Philips, the world's largest lighting manufacturer, conducted experiments in Europe the year before last, and the results were all mediocre, which shows that everyone's understanding of the LED light source is not deep enough

in the international market, only European nedap company has provided a valuable application case. They have designed a system for the application of plant growth lamp and LED lamp together. The plant growth lamp is used to provide the components of continuous spectrum, and the LED lamp is used to supplement the single blue or red light. This system has some successful cases. There is also the European ion lamp technology, that is, the plasma lamp light source (which is quite different from the current domestic microwave sulfur lamp). Its advantage is that it is very close to natural light by pressing the "reset" key on the spectral composition. The blue light spectrum is required in the process of plant growth, which can be obtained manually and is difficult to obtain. Because the blue light spectrum can be obtained by the isoion lamp, it is very meaningful for plant growth. Now this kind of light source mainly comes from luxim company in Britain and Topanga company in the United States. The extremely low light source cost will make the plasma lamp very competitive in the market

the current mainstream trend in electrical appliances is electronic ballast. Inductive ballasts have embarked on a new journey of high-quality development. From the Jinan period, cement pipes usually adopt the standard gb/t 11836 (2) 009 "concrete and reinforced concrete drainage pipes" to test the mechanical properties of the compressive strength of the material. Whether energy consumption or the impact on the application of light sources and spectral components have adverse factors, so they are gradually replaced by electronic ballasts. In fact, the problem of lamps and lanterns is easy to be ignored by everyone, but more importantly, it has a great impact on the spectral components and bulbs than the reflected light and the uniformity of light

there are many kinds of fill light systems abroad. The following is a brief introduction of several plant fill light systems that are widely used. The first is the mobile fill light system, which is simple and convenient to operate, easy to disassemble and move, and suitable for lawn fill light and emergency fill light. The second is the remote control system, which is mainly applied in North America and has been applied in some regions in China. Its biggest feature is that it does not apply professional plant growth lamps, but "fills the light and designs" through the traditional light source ratio. Third, close range high-power fill light system. At present, there are two sets of lighting systems in the world that are the most advanced, and the effect of plant lighting is the best. One is 400v1000w system, and the other is 400v750wpsl system represented by General Electric Company. The two systems have their own advantages. 400v1000w system is the most modern plant lighting system seen so far. When configured and applied in the greenhouse, the main facilities are all laid underground. In foreign projects of 80000 to 100000 square meters, the system only needs two workers to operate, which greatly improves the operation efficiency

at present, the technical knowledge of China's plant lighting industry mainly relies on learning from Europe and the United States. Some foreign companies have made very detailed research in the field of plant lighting, and have accumulated rich experience in long-term production practice. They can formulate appropriate lighting schemes from the aspects of light source type selection, lighting time control and expected effect according to the difference of plant species. What China needs to do is to learn, digest and absorb these technologies and improve them on this basis

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