Optimal bumblebee hive placement for tomato cultivation under artificial lights
which is not recommended,
it is crucial to position them above the heads of the plants.
Avoid stacking more than three hives vertically and rotate the
entrances [...] hives to catch the first light of the morning. Early sunlight is critical for activating bumblebee colonies,
enabling them to become active and orient themselves [...] activation.
Additionally, if entrances face the same direction, there is a
tendency for bees to drift toward the lower hives, compromising
pollination efficiency