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Greenhouse research, The resulting values for the plant: minimum - optimal…
Greenhouse research
Glazing
ETFE foil
Polycarbonate
Glass
Describe each of them
Influence on radiation
Changing spectrum
Average number of luxes per month/m2?
Average DLI per month/m2
Tropical greenhouse
Selected plant needs
Xerical greenhouse
Selected plant needs
Subtropical greenhouse
Selected plant needs
Outside
Amount of radiation
Outside
The resulting values for the plant: minimum - optimal - maximum
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Primary plants
Describe their demands of DLI
Find a locality of natural occurrence
Use DLI report from Suntrackertech DLI calculator
Use monthly average DLI values of native place of plant and use factor of sun requirement (Full shade - Part shade - Part sun - Full sun)
Do comparison of average monthly radiation values between native place and target place (greenhouse place) and conditions inside greenhouse
Differencies between these values indicates, if this species is relevant for this greenhouse and "what will cost us to plant it here" (necessary illumination - artificial light).
The lowest possible dli value for plants is set to 3 mol/m2/d
https://www.redusystems.com/en/articles/daily-light-integral-should-be-guide-for-optimal-production-of-ornamentals
Example of DLI calculation for Alpinia Purpurata
Find out locality of natural occurence
Download Suntrackertech DLI report for years 2018 - 2022
Calculate average monthly values of DLI in nature
Based on the requirements of the plant to the light to assign the plant optimal category, and also tolerance category
Full sun - 100 %
Part sun - 75 %
Part Shade - 50 %
Full shade - 25 %