I have given is a good soak and put wet newspaper down for now. It did have a good mulch of cow manure this time last year but I have run out and will not be able to shift anymore until the end of this month.
As it happens availability of manure is starting to be a key factor in my allotment as I have been offered another half next to my existing 10 rods but doubt I could get enough manure to manage it in a no dig way, so currently in talks with the one remaining dairy farmer in the area, even though he is not organic it would be better than nothing.