Hi Daultonio, Blackbushe has an AFIS service from 9am till 6pm everyday otherwise A/G. One runway 25/07 with LH circuits on 25 and RH circuits on 07 (this can change but very rarely). Joins are usually on the deadside (Northern side) crossing the runway at circuit height of 800 AGL.
Be sure to call Blackbushe first to book in, as passing details over the radio will be sure to annoy the staff.
Before reaching Blackbushe would suggest that you talk to Farnborough Radar on 125.25 and have a flight information service from them as this area of airspace can be pretty busy on good flying days.
When departing Blackbushe again talk to Farnborough.
Hope that helps and if you require any more information feel free to drop me a PM.