Targeting lighting periods in strawberry cultivation

Photosynthetic LED lighting

Targeting lighting periods in strawberry cultivation
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Targeting the periods of photosynthetic LED lighting in strawberry cultivation makes it possible to reduce the operating costs of the system. The trials carried out at the Balandran centre open up new perspectives and show that with a well-thought-out lighting strategy and adapted plant material, the use of this new technology can generate a profit for the grower.

Published 01/03/2023

Adapting lighting times: a key component of optimising the system

Maintaining the gain in radiation

From 2017 to 2021, in the trials conducted at the Balandran centre, supplemental photosynthetic lighting was applied from planting to the end of the first flush of fruit, over a 12-hour photoperiod, regardless of solar radiation. This resulted in operating costs of up to 3.70 €/m².

In 2021, the lighting periods were managed according to solar radiation (Table 1). The set radiation thresholds changed during the season and according to the time of day. The aim was to maintain a 12-hour photoperiod while reducing the duration of the LED lighting on sunny days to reduce operating costs. Short 20-minute lighting periods compensated for the loss of radiation due to the LED structure shading the plants when the LEDs were turned off.

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