Shaun Harrad, another member of last seasons highly rated youth squad, is also out gaining plenty of experience in a similair arrangement at Gresley Rovers.
Bostock has yet to make a first team appearence for Notts, though he was an unused substitute for the final game of last season against Cheltenham.
He was expected to breakthrough this year, but has found Dearden's no under 21's policy hard to get past.