least 28 Watt/m2 PAR-light or 56 Watt/m2 sunlight at the location of the hive. Depending on the type of greenhouse, this resembles about 60-70 Watt/m2…
the bumblebees to pollinate. For pollination, bumblebees need at least 28 Watt/m2 PAR light near the hive and the presence of Ultraviolet light. …
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