There is no sunlight in the garden. Under the illumination of red and blue LED lights, the color of the vegetables becomes fuller, the water is more, and the nutritional value is higher. A fleshy bulb with a specific wavelength of LED can affect the flowering time, quality and duration of the flowering of the plant. LEDs of certain wavelengths can increase the number of flower buds and flowering of plants; LEDs of certain wavelengths can reduce the flowering reaction, regulate the length of peduncle and flowering period, and facilitate the production and market of cut flowers. It can be seen that the flowering and subsequent growth of the plants can be regulated by LED regulation. In the absence of daylight, led lamps can act as daylight, allowing plants to grow normally or better. This kind of lamp has strong roots, encourages, regulates flowering and flower color, promotes fruit ripening, coloring, and enhances the taste and quality! A new type of LED plant growth lamp is being used in the experiment. The study found that lettuce initially took 52 to 60 days to grow, but matured in just 20 days after using LED plant growth lamps. It is the most economical method to perform supplemental illumination using the peak wavelength of photosynthesis. Li Lizhi said that during the growth and development of vegetables, only the red orange light and blue-violet light emitted by the sun are absorbed. The utilization rate of light energy is very low, and the traditional planting methods are greatly affected by the natural environment. However, LED plant lights can adjust the spectrum according to the needs of different types of vegetables and different vegetable growth stages. Take lettuce as an example. When lettuce is grown, it will not grow too high. At this time, the blue light is brighter than the red light. Conversely, in the later stages of lettuce growth, when the lettuce leaves grow, more red light and less blue light are needed. At present, researchers have discovered the dimming laws of lettuce, celery, chicken and other green leafy vegetables that Shanghai residents often eat. At the same time, researchers are experimenting with LED lights to promote the growth of valuable plants such as ginseng and Dendrobium Dendrobium. According to Li Lizhi, it is also a science to install LED lights in which position. Sidelights are suitable for some vegetables that need plane growth, simulated cucumbers, etc. Some vegetables, such as eggplant and lettuce, grow on the right side of the top light, while the bottom light needs to be filled with long vegetables, which is longer than the growth in front of the top light. Tomatoes have an advantage in nutrient transport, while the bottom light is suitable for the growth of vegetables such as eggplant and lettuce, and the bottom light is suitable for the growth of vegetables. Plants also grow better, and tomatoes can naturally grow downwards under the influence of the bottom light.
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