How will we grow food in the future?
Why is horticulture lighting important?
The world’s population is growing. The available farmland is diminishing. The urbanization is increasing, and with it the transportation distances and expenditures. The ability to provide enough food will become a challenge in the next 30 years. Traditional agriculture will not be able to provide the people in future cities with enough healthy nourishment.
We are in need for new and better systems to meet the food supply demand.
Urban farming and indoor vertical farming are very good examples of such solutions. Growing tomatoes, melons, lettuce and the like in the midst of big cities, and these plants will need to be fed as well, primarily with water and light. Compared to conventional agricultural solutions, urban farming achieves significant increases in energy efficiency and can, thus, help vegetable and fruit cultivation in the metropolises of the world to become viable.
What is horticulture lighting?
Horticulture lighting is used to support, increase and enable the growth of plants by illuminating them with artificial light. LED Light is a very efficient way and upcoming solution for this application!
Horticulture lighting is used -
- as supplemental lighting: To supplement natural daylight and raise grow light levels in order to enhance photosynthesis and thereby improve growth and quality of plants in greenhouses
- as photoperiodic lighting: To control the light period by extending the natural day length with artificial light
- for cultivation without daylight: To totally replace daylight with artificial light for ultimate climate control
How does light affect plant growth?
- Light quantity
The amount of light affects the photosynthesis process in the plant. This process is a photochemical reaction within the chloroplasts of the plant cells in which CO2 is converted into carbohydrate under the influence of the light energy. - Light quality regarding spectral composition of the light
The spectral composition of the different wavelength regions (blue, green, yellow, red, far red or invisible e.g. UV or IR) is important for the grows, shape, development and flowering (photomorphogenesis) of the plant. For the photosynthesis, the blue and red regions are most important. - Light duration
The timing / light duration which is also called photoperiod is mainly affecting the flowering of the plants. The flowering time can be influenced by controlling the photoperiod.
Every plant has its own light requirements, therefore plant-specific ‘light recipes’ are being researched extensively. By using the right light, it is possible to influence the development of plants, from their growth patterns to their appearance and nutrient content.
What is horticulture lighting?
Horticulture lighting is used to support, increase and enable the growth of plants by illuminating them with artificial light. LED Light is a very efficient way and upcoming solution for this application! Horticulture lighting is used -
- as supplemental lighting: To supplement natural daylight and raise grow light levels in order to enhance photosynthesis and thereby improve growth and quality of plants in greenhouses
- as photoperiodic lighting: To control the light period by extending the natural day length with artificial light
- for cultivation without daylight: To totally replace daylight with artificial light for ultimate climate control
What are the optimum wavelengths?
Horticulture lighting is focusing on LEDs with mainly 450nm, 660nm and 730nm wavelength.
- The 450nm and the 660nm are providing the energy for the plant to life and grow. The amount of light is not measured in lumen but in amount of photons. The common unit in horticulture lighting is µmol/s in the range of 400-700 (photosynthetically active region).
- The 730nm is necessary to control the growth of the plant.
If you read just one more thing:
OSRAM horticulture lighting takes on the challenges of the 21st century
The world’s population is growing. The available farmland is diminishing. The urbanization is increasing, and with it the transportation distances and expenditures. The ability to provide enough food will become a challenge in the next 30 years. Traditional agriculture will not be able to provide the people in future cities with enough healthy nourishment. We are in need for new and better systems to meet the food supply demand.
Urban farming and indoor vertical farming are good examples of such solutions. We will grow tomatoes, melons, lettuce and the like in the midst of big cities. These plants will need to be fed primarily with water and light. Compared to conventional agricultural solutions, indoor farming achieves significant increases in energy efficiency and can, thus, help vegetable and fruit cultivation in the metropolises of the world to become viable.
OSRAM's main areas of horticulture lighting
We work with researchers and growers at the forefront of the controlled-environment agricultural revolution to provide products and systems that optimize crop development.
Key to find the best light recipes are self-learning software algorithms that create and optimize digital plant models in order to cultivate tailor-made salads, herbs, vegetables and fruits.