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HorticultureLightingApproachOur approach.Step by step toyour solution”Step 1 ➜ What is your business need?Step 2 ➜ Light recipeStep 3 ➜ Product and applicationadviseStep 4 ➜ Business case andfinancingStep 5 ➜ Agreement, delivery andinstallationOur know-howand network foryour solutionWe understand that every business is unique and needs a differentsolution. In all our years of experience in horticulture, not oneproject was exactly the same. Every grower has a unique situationand needs a custom made solution.Step 6 ➜ Implementation checkStep 7 ➜ Follow up8Philips Horticulture LED Solutions - General booklet
HorticultureLightingLight energyLight & plant growthCarbon dioxide gas (CO 2)Water (H 2O)Glucose (C 6H 12O 6)Oxygen (O 2)Light is essential forplant growthNatural sunlight is the cheapest source available, but for horticultureit is not always attainable in sufficient quantities. Therefore, the useof artificial light has become very common in order to increaseproduction and quality.Plants have a completely different sensitivity to light colors thanhumans. With regard to plant growth, light is defined in terms of smallparticles, also called photons or quantum. The energy content ofphotons varies, depending on wavelength (light color spectrum). Forone optical energy, almost one and a half as many red photons canbe produced compared with blue. This means that often red lightsources produce more efficient light photons than blue light sources.However the plant has also various sensitivity for various colors oflight, and that influences different light-sensitive activities as well.Using the efficient light sources for plants, effective light recipes areimportant to obtain the optimal results in plant production.Plant sensitivity curve for growth light:The only part of the global radiationspectrum which can be used by a plantfor its photosynthesis is between400-700 nm, this is called the PAR-light(Photosynthetically Active Radiation).The amount of photons in the PARregion are called growth light (indicatedin micromol (μmol)).So, around 45% of global radiation isPAR light. Photosynthesis is the basicprocess that leads to growth of a plantand light is an essential part of this. Thisenergy is used to form glucose fromcarbon dioxide gas (CO 2) and water,which are taken up by leaves and roots.This process can be represented asshown above.Philips Horticulture LED Solutions - General booklet9
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