We've all heard of GrowLux lights; most often talked about in relation to homegrown 'herbs'.Here's a report on a different type of light that actually reduces nitrates (reductions up to 65%!) in plants and increased natural carbohydrate content.
The researchers grew lettuce, marjoram, and green onions to harvest time in a greenhouse in daylight conditions with supplementary lighting from standard high-pressure sodium lamps. The plants were then given a 3-day treatment with a solid-state illuminator which generates high-density photosynthetic photon flux.In addition to reducing nitrate concentration, solid-state illuminators create less radiant heat than high-pressure sodium lamps, allowing a high intensity of photosynthesis, and only need to be used for short periods of time rather than over the whole growth cycle.
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