Harf`s initial goal was to increase his yields. But after visiting the SGGW University in Poland and talking to RYGH plant specialists, he now sees opportunities to use LED grow lighting to improve his crop quality.
Harf decided to combine HPS lighting with RYGH LED toplighting and a double line of RYGH LED interlighting between the rows. To provide as much led grow light as possible, the LEDs are on for 18.5 hours a day and the HPS lights are on 17.5 hours a day, to gradually heat-up and cool-down the crop.
Harf`s previous HPS interlighting set-up generated quite a lot of heat in the middle of the crop. This was a major issue, especially in the warmer months of the year, because he had to vent a lot of air and he lost a lot of CO₂. With the new LED interlighting and toplighting solution, Harf can still apply additional lighting in the warmer seasons. That`s important, because cucumbers require as much light as possible.
