sounds interesting.... but probly not as much as u would think. i think it could be good if you plan on basicly drowning the plant and leaving it in there.... and depending on your soil it is noooot cool to soak, esp with slow release nutes in the soil. that would be bad.
i use aquarium air pump for and injecting the air into the soil because many tree grown like crazy in nature when its standing on the side of the cliff...every day breeze air push from below to up..so i copying nature.
They're called airdomes mate. Coco growers use them all the time. Get scary good results.
I've also tried putting small airstones in a hempy and that works well too.
Not something I've ever seen done in soil though. Not sure if there's a reason for it but I certainly can't think of one. Would eleviate your risk of over watering somewhat I'd imagine too seeing as those problems actually come from a lack of oxygen.
Do 2 clones and try something on one of them. Won't be exactly scientific but be close enough.