Are you wanting a concrete astro turf wicket or a proper turf strip to play on mate?
If your chasing a turf strip that is going to be any good if you want to play games on it and whereby the deck isnt going to break up, and is going to allow (decent) bounce throughout a game, it isn't such a basic process. You need to excavate an area, at least 300mm deep, put down plastic sheeting to prevent outfield grass and weeds encroaching on the square. Then its a process of layering crushed stone and appropriate clay at certain depths, compacting each during the process. Then planting an appropriate grass and maintaining that.
Anyways my knowledge is limited. Any groundsmen on here either add to that or burn it entirely!!!