I think what dullah was getting at is that beeskeps have a maximum number of crops they can boost at a time.
The math escapes me, but it's possible to overwhelm one skep and have it not boost the entire field
Ironically, when checking the wiki I found a quote from myself on the topic:
"Each time a crop grows to the next stage, it checks if there's a beehive within range. If it finds beehive, the time before the next stage change is reduced, and the beehive receives a usage tick. Beehives can store up to 50 uses (and noting how jorb worded it, it's likely they start will a full 50 when first created), and will regenerate 6 uses per hour. Crops using a beehive will cause honey and wax production (exact mechanics unknown), but jorb has stated there is a low level of base production of honey/wax by a hive even if it has no crops nearby." -Sevenless