up to 15% after having installed LED toplighting"
- Frands Jepsen, Managing Director of the Queen brand
Since 1939, Queen has bred kalanchoes to make them more compact, something its customers value. “We are always searching for ways to optimize and speed up our production processes,” says Frands Jepsen. “We wanted to find a way to produce our plants with only LED, as heat can cause the plants to stretch". Queen was looking for a way to reduce plant temperatures to provide more consistent quality.
Queen had been successfully using Philips LED lighting in multilayer configurations since 2006. But their greenhouse area still used HPS fixtures; limiting flexibility, increasing heat and reducing growth rates. By expanding its LED lighting to three cultivation stages in 2017, Queen has gained immense control over its entire growth process.
In the multilayer rooting phase Queen upgraded its LED production modules to the second generation of its kind, to further optimize control and flexibility. “The kalanchoes really benefit from the LED’s red light,” says Frands Jepsen. “We get two to three days faster rooting, which is 25% faster, all year round.”
In the greenhouse Queen added GreenPower LED toplighting to its existing HPS toplighting for use during the kalanchoe vegetative phase, the long-day phase of the crops. “LED toplighting has led up to 15 percent increase in our number of buds,” says Jepsen. “We also see more side shoots and higher numbers of buds on each side shoot.”
• Increased light level by 30%
• 2-3 days faster rooting
• Year-round uniform production
Wim Peters Kwekerijen
Peters chose to double the LED lighting with a new hybrid lighting installation that combines Philips GreenPower LED interlighting with HPS.
Great Lakes Growers
Lettuce growing operation in northeast Ohio switches to 100% Philips LED toplighting from HPS after conducting an in-house comparative analysis of grow lights
Vikars Grönsaker AB
20% more yield, thanks to higher plant density enabled by LED interlighting
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