help!!!! me and my 9yr old son have just got an allotment it was covered in brambles and not been used for a couple of years i removed the long grass and brambles with a digger down to ground level {i use them for work} iam thinking of using round up on the new shoots that are growing rapidly then having some manure delivered a week or so later then getting it ploughed and rotivated in the begining of december there is somebody on site who does the later for a small cost ..IS THIS A GOOD IDEA??? I want to get it looking usable as quick as poss to keep my sons interest . PLEASE HELP. ITS ALSO MY FIRST TIME AT ANY THING LIKE THIS