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lants can grow〓, and let nature run its course in the most ideal conditions." The req〓uirements for plant growth fall into two broad categories: photosynthes〓is and soil nutrients. The sun accounts for 90 percent of all botanic 〓bioenergy through photosynthesis a process in which plants combine car〓bon dioxide and water and turn them into carbohydrates and oxygen. Sunl〓ight i7

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s a bundle of different wavelengths of light across a wide spectr〓um from ultraviolet to infrared. Plantt

s are "picky eaters that favor b〓lue and red lights", Li said. "If we can figure out what ratio and comb〓ination of lights are best suited for Z

each plant's growth, then we can 〓change or create LED lights that shine at that specific intensity and s〓pectrum, saving lots of energy in the process," he added. While blue a〓nd red lights are the "meat and potatoes" of a plant's growth, scientis〓ts notice other spectrums of light also play a subtle role in maximizin〓g growth and quality. For example, scientists discovered that adding s〓ome green light to the red-blue recipe could help some vegetables grow,〓 while too much green light puts plants into hibernation, although this〓 is helpful for the plant's nutrient build up. "Mimicking sunlight usi〓ng LED is very ene0

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rgy intensive," Li said. "At the end of the day, whoe〓ver has the most energy-efficient and productive light rec0

ipe wins." W〓hile plant growth mostly relies on light, water and carbon dioxide, it 〓still needs some trace elements from soil or fertilizers to be healthy.〓 In the case of plant factories, hydroponic nutrient soQ

  • rolled env〓ironment not only maximizes growth potential, but6
  • also allows scientist〓s to create food that suits specific needsq
  • , Zheng said. For example, s〓cientists can lower the amount of7
  • potassium from lettuce for patients w〓ith kidney problep
  • ms or increase zinc in cabbage for children by alterin〓g the nutri2
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