Le Jardin de Rabelais deliberately targets the higher-end segment of the market. For its nursery, Delahaye grows the Piccolo variety, which has a superb taste but is not easy to grow.
To increase the amount of light in the greenhouse, without further raising the temperature, Delahaye decided to install Philips GreenPower LED interlighting in two strands, which has a total intensity of 110 μmol/m2.s. This means that the total capacity of the nursery, together with HPS toplighting, is now 235 μmol/m2.s. Delahaye: “Together the lighting systems provide a plant reaction that is equivalent to 285 μmol/m2.s, a huge leap forward”.
Remarkably, the installer performed the entire operation in a greenhouse covering an area of 16,000 m2 that still had crops growing in it. “In fact we never have a break from producing, since we want to serve the market all year round,” explains Delahaye. In addition, the LED interlighting system can be hoisted, which was thought up by Horti LED partner Certhon and means that the interlighting can ‘grow along’ with the crop.