Instead of letting fields lay fallow for crop rotation, they could plant diverse wildflower meadows to improve quality of bee health for the traveling bees that get shipped around for crop rotation.
I can see a potential problem with this suggestion. How many of those wildflowers are net nitrogen fixers? If they are net-negative this approach could be draining all the nitrogen out of the soil during off-rotation years meaning large amounts of petrochemical fertilizer would have to be used to make the field productive again for nitrogen consuming crops (like wheat and corn).
I can see a potential problem with this suggestion. How many of those wildflowers are net nitrogen fixers? If they are net-negative this approach could be draining all the nitrogen out of the soil during off-rotation years meaning large amounts of petrochemical fertilizer would have to be used to make the field productive again for nitrogen consuming crops (like wheat and corn).