Measure of the American Society of agricultural and biological engineers released about LED horticultural lighting

The American Society of agricultural and Biological Engineers (ASABE) published a paper entitled "plants (photosynthetic organic matter) quantity and unit" electromagnetic radiation ANSI/ASABE S640 standard. This work is the American Society of agricultural and Biological Engineers (ASABE) is committed to research on the standard research for the first time, can promote the development of horticulture lighting based on LED. Solid state lighting (SSL) on the vertical farm gardening more and more important, as the supplementary application in greenhouse. The standard is intended to provide a common language for the characterization of plant LED system.

So far, in order to survey LED lighting standards work has been carried out for more than 10 years. But some of the basic indicators, such as directly applicable to human efficacy (lm/W) is based on human visual sensitivity, is effective for plant growth light almost no applicability.

The American Society of agricultural and Biological Engineers (ASABE) from the beginning of 2015 active in setting standards, the first priority is to measure the definition as well as a new biological activity across the 280-800nm radiation belt. The radiation belt cover less ultraviolet region of human visual sensitivity and far infrared region.

The horticulture industry using the existing measurement has been for some time, such as the use of 400-700 nano photosynthetically active radiation (PAR) based on the photosynthetic photon flux (PPF) and photosynthetic photon flux density (PPFD). These metrics are still useful. But the light effect on plant morphology, far red region can affect the growth of seed germination, and flowering plants. The new standard will add new measure in these places.

ASABE announced that the S640 standard will be in six weeks you can buy. Interested friends can visit the web site (http://elibrary.asabe.org/) and search for S640, it will show the purchase price of the standard. Non member price is 61 dollars. (compiled: LEDinside James)

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