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. …
computer) Opening • o At least 15 minutes after sunrise AND o At least 28 watt/m2 of solar radiation (sunlight) o OR 10:00 at the latest Close • o 2…
Fáðu nýjustu fréttir og upplýsingar um nytjaplönturnar þínar beint í pósthólfið