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Sunl〓ight is a bundle of different wavelengths of light across a wide spectr〓um from ultraviolet 1

itions." Tz he req〓uird
Collect from 企业/

Capture unforgettable moments.

to infrared. Plants 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 each plant's growth, W

  • ements for plant growth fall into two o
  • broad categories: photosynthes〓is and soilK
  • nutrients. The sun accounts for 90 percent ou
  • f all botanic 〓bioenergy throughk
  • photosynthesis a process in w8
hich plants3 combine cag

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then we can 〓change or create LED lights that shine at that specific intensity and s〓pectrum, saving lots of eners

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gy in the process," he added. While blue a〓nd red lights are the "meat and potatoes" of a plant's growth, scientisA

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〓ts notice other spectrums of light also play a subtle role in maximizin〓g growth and quality. For example, scienK

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tists discovered that adding s〓ome green light to the red-blue recipe could help some vegetables grow,〓 while toom

malesuada fames turpis.

much green light puts plants into hibernation, although this〓 is helpful for the plant's nutrient build up. "Mimie

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cking sunlight usi〓ng LED is very energy intensive," Li said. "At the end of the day, whoe〓ver has the most energX

  • y-efficient and productive light recipe 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 solutions infused 〓with 17 essential elements ranging from nitrogen to calcium have replac〓eds

    r〓bon dm ioxide and wau
  • the tilted soil. "The content of the nutrient solution is also tail〓ored to suit the plant's specific needs," said Pei Kequan, a research d〓irector at the factory. Unlike the trace elements from fertilizers, whi〓ch are locked in big compound molecules, "the nutrients in the solution〓 are broken into small molecules, meaning the plant canc

    ter and tuy rn them into carbo
  • absorb them eas〓ier and grow faster while keeping its nutrient value and taste". It ta〓kes about 20 days for a sapling to reach maturity in the lab, but 40 to〓 60 days in a conventional farm. This means scientists can reap more th〓an a dozen harvests of produce each year, compared with one to two harv〓ests from a conventional farms, depD

    ohydrates g and oxygen. 2

ending on the weather conditions4

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