New agricultural facilities such as greenhouses, plant factories, and vertical farms play an extremely important role in the development of modern agriculture. In order to avoid the adverse effects of weather and increase the yield, artificial lighting is used for plant supplement lighting. After years of development, LED grow lights have become the most important light source in agricultural lighting. Because of the lower price and high light efficiency, the high-pressure sodium (HPS) lamps still have a certain market share. The following is a comparison of the two most common agricultural lights currently on the market.
1. The HPS light is composed of mercury, sodium, neon arc tube wick, glass bulb, and getter lamp head. HPS lights of different powers need to use ballasts of corresponding specifications. The LED is also called a light-emitting diode, and the core portion is a wafer composed of a P-type semiconductor and an N-type semiconductor.
2. The HPS lamp tube has an illumination angle of 360°, and most of the light must be reflected by the reflector to reach the designated area. The spectral energy distribution is roughly red-orange, yellow-green, and blue-violet (only a small part). The LED light source has wavelength tunability, and can emit monochromatic light with narrow light waves, such as infrared, red, orange, yellow, green, blue, etc., and can be arbitrarily combined according to different needs.
3. The life of the HPS light is about 20,000 hours, which generates a lot of heat during work. As a semiconductor light source, LED grow lights can last up to 50,000 hours and produce relatively little heat, which can be installed close to crops.
4. Studies have shown that the gas exchange, chlorophyll content, accumulation of photosynthetic pigments, and transpiration rate are higher under LED lighting. The special spectral ratio of LEDs can also be used for the different growth of plants.
The advantages of HPS lights and LED lights are significant compared to other light sources. The initial investment cost of LED is higher than that of HPS lamps, but the overall cost is lower. And with the development of LED technology, the production cost of LED grow lights will further decrease.
2018年12月23日星期日
2018年12月19日星期三
A plant factory combines natural light and LED grow lights have been built in Beijing
The largest sunlight and LED grow lights combination plant factory has been built in Beijing by Jingdong, which has a total area of more than 10,000 square meters. With the help of the combined lighting system, cultivate system and temperature control system, the factory will be in the most suitable environment all years round.
Due to the adoption of the latest technologies, the yield is 3 to 4 times than other traditional greenhouses, and more than 90% of the water is saved. Moreover, the factory maximizes the use of natural light rather than relying on LED grow lighting, which further reduces energy consumption.
It is reported that the vegetable will be sold simultaneously on the Jingdong's online and offline markets.
Due to the adoption of the latest technologies, the yield is 3 to 4 times than other traditional greenhouses, and more than 90% of the water is saved. Moreover, the factory maximizes the use of natural light rather than relying on LED grow lighting, which further reduces energy consumption.
It is reported that the vegetable will be sold simultaneously on the Jingdong's online and offline markets.
2018年12月9日星期日
Abandoned mine + LED grow lights + other systems = vertical farms
The reduction of waste coal has become a global environmental consensus, so more and more coal mines will be closed in the future. Scholars at the University of Nottingham are beginning to think about the future use of waste mines. They propose vertical farms. The concept is that a mine is a ready-made greenhouse that can be turned into a fully functional farm with the addition of LED lighting and irrigation systems.
According to reports, scholars believe that deep farms have some obvious advantages: they are not affected by the weather, and the temperature of the ground floor does not change much, and expensive temperature control equipment is not needed. Safa of the University of Nottingham said: Tunnels and shafts do not need heating equipment, and even if they do, they consume less electricity, so they are very attractive for food production. We designed a central shaft for mounting robots. With these robotic arms to take care of the crops and harvest, the entire system costs only about $38,000 to build, and then the operating costs are lower. The LED plant grow lighting system does not consume much electricity.
Vertical farms are suitable for vegetables and fruits with short growth cycles, such as spinach, kale, basil, mint, strawberries, mushrooms, carrots, eggplants, etc. Their trials show that a small well-type small farm can produce 80 tons of crops per year. Moreover, production is not affected by the seasons and can reach 10 crop cycles per year, while British outdoor farms only have 4 to 6 times.
According to reports, scholars believe that deep farms have some obvious advantages: they are not affected by the weather, and the temperature of the ground floor does not change much, and expensive temperature control equipment is not needed. Safa of the University of Nottingham said: Tunnels and shafts do not need heating equipment, and even if they do, they consume less electricity, so they are very attractive for food production. We designed a central shaft for mounting robots. With these robotic arms to take care of the crops and harvest, the entire system costs only about $38,000 to build, and then the operating costs are lower. The LED plant grow lighting system does not consume much electricity.
Vertical farms are suitable for vegetables and fruits with short growth cycles, such as spinach, kale, basil, mint, strawberries, mushrooms, carrots, eggplants, etc. Their trials show that a small well-type small farm can produce 80 tons of crops per year. Moreover, production is not affected by the seasons and can reach 10 crop cycles per year, while British outdoor farms only have 4 to 6 times.
2018年11月27日星期二
7-11 investing 6 billion yen to build LED lighting vertical farm
Japan 7-11 are planning to build a large vertical farm to provide vegetables for their stores in Tokyo and Kanagawa. The farm uses LED grow lights to provide lighting for the vegetables, reducing the impact of weather on prices. Through large-scale procurement is expected to stable the plant operations and encourage further development.
The 7-11 vertical farm invested about 6 billion JPY and is expected to be put into operation in January 2019. 7-11 are considering to build more plant factories in other partner factories in Japan.
At present, 7-11 mainly purchase vegetables from contracted farmers. Due to the traditional farms are more affected by weather, the prices of vegetable will rise sharply during the bad weather. Although the production cost of plant factories is higher than the regular purchase price in the early stage, the production of the vertical farm is not affected by the external environment. For the plant factory, the prices and quality of vegetable are more stable, the defect rate is lower, and on average, the production cost is expected to decrease.
MLDR CO., LTD. is a professional LED grow lights manufacturer in China, welcome to contact us if you have any questions about LED grow lights.
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| 7-11 |
The 7-11 vertical farm invested about 6 billion JPY and is expected to be put into operation in January 2019. 7-11 are considering to build more plant factories in other partner factories in Japan.
At present, 7-11 mainly purchase vegetables from contracted farmers. Due to the traditional farms are more affected by weather, the prices of vegetable will rise sharply during the bad weather. Although the production cost of plant factories is higher than the regular purchase price in the early stage, the production of the vertical farm is not affected by the external environment. For the plant factory, the prices and quality of vegetable are more stable, the defect rate is lower, and on average, the production cost is expected to decrease.
MLDR CO., LTD. is a professional LED grow lights manufacturer in China, welcome to contact us if you have any questions about LED grow lights.
2018年10月16日星期二
Germany successfully grows vegetables in the arctic with the help of LED grow lights
According to the German arctic research camp, researchers have successfully planted and harvested 183kg of fresh vegetables including tomatoes, cucumbers, kohlrabi and so on. This successful trial not only marks that the humans have the ability to planting in the Arctic but also set an example for other researchers who try to grow plants in other harsh natural environments and outer space.
It is extremely difficult for supply ships to enter the Arctic during the winter because the sea will be covered with extremely thick ice. Therefore, It's almost impossible for staff in the Arctic to eat fresh vegetables at that time. In February of this year, The German team built a greenhouse that could withstand temperatures as low as minus 40 degrees Celsius and built vertical farms in it. The lack of sunlight in the greenhouse makes artificial lighting indispensable, for this reason, LED grow lights are used to create the light condition for the growth of vegetables. Although the tomatoes grown in this greenhouse aren't as big as those grown outside, its vitamin content exceeds that of refrigerated vegetables.
This may also be a good example for future agricultural development. Moreover, the LED grow lights that is famous for energy conservation and environmental protection also will occupy an important position in future agriculture.
It is extremely difficult for supply ships to enter the Arctic during the winter because the sea will be covered with extremely thick ice. Therefore, It's almost impossible for staff in the Arctic to eat fresh vegetables at that time. In February of this year, The German team built a greenhouse that could withstand temperatures as low as minus 40 degrees Celsius and built vertical farms in it. The lack of sunlight in the greenhouse makes artificial lighting indispensable, for this reason, LED grow lights are used to create the light condition for the growth of vegetables. Although the tomatoes grown in this greenhouse aren't as big as those grown outside, its vitamin content exceeds that of refrigerated vegetables.
This may also be a good example for future agricultural development. Moreover, the LED grow lights that is famous for energy conservation and environmental protection also will occupy an important position in future agriculture.
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