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Agricolture and Light measuraments

Indoor Agriculture has been increasingly gaining interest as a means for plant-assisted growth using artificial light. This has ramifications for supplemental food production during winter months, especially in regions with short-days and reduced sunlight.

This technology also has the commercial potential for ornamental plants as well and even perhaps for growing plants 24 hours / day. Plant assisted growth using artificial light uses wavelengths described as PAR (photosynthctically active radiation).

It is measured in PPF (Photosynthetic Photo Flux), which is the amount of light in the 400- 700 nm range that falls on a square meter in I second: pmol m-2 s-l (micromoles of photons per meter squared per second).

Measuring PAR

Plants photosynthesis at wider range of wavelengths than what we can see. mostly at the red and blue ends of the color spectrum and less in the greens. However, not all plants synthcstec in the same way -different plants need different wavelengths of light and even the same plant will require different wavelengths depending on its development phase.Chloroplasts are a subunit within a plant cell and contain Chlorophyll different plants have different types of chlorophyll and thus respond to different wavelengths of light. 

The MK350S can measure PPF at different ranges of wavelengths to determine if certain plants arc receiving the appropriate amounts of light at the right colors.

Using the MK350S Spectrometer For Horticulture & Agriculture industry 

LED light source provides Freedom of choice which deliver better values/energy to grower in Agriculture & Horticulture. UPRtek develops technology and skills into solution to solve problem that enterprises require well management of LED light source in this industry. 

Including :

•PPFD /PAR (Unit : μmol/m-2, s-1) 

•Lux 

•Spectrum 

•mW/m2 that suits Agriculture & Horticulture.

The Advanced MK350S can measure PPF 

(photosynthetic photo flux) 

PPF (full spectrum 400-700 mn) 

PPF-R (Red 600-699 nm)

PPF-G (Green 500-599) 

PPF-B (Blue 400-499) 

PPF-NIR (near infra red 700-780) PPF-UV (ultraviolet 380-400) 

PPF UV(380nm~399nm) /pmol m-2 s-1 

PPF(400nm~699nm) /pmol m-2 s-1 

PPF B(400nm~499nm) / pmol m-2 s-1

PPF G(500nm~599nm) / pmol m-2 s-1 

PPF R(600nm~699nm) / pmol m-2 s-1 

PPF NIR(700nm~780nm) / pmol m-2 s-1 

Conclusion: 

It’s known fact that difference of measuring values remains between Spectrometer and Quantum Meter 

MK350S model is Spectroscopic Type for Calculation of PAR/PPFD, with sensor by Spectroscopic type features excellent cosine response, which ensures accurate measurements 

According to actual testing at NIST Certificated LAB, MK350S do performs better accuracy & repeatability of measuring than Quantum meter, such as LICOR’s product. 

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