Mike wrote:
I'm preparing a patch (75 m2) of virgin soil for sowing a lawn.
The


Is that, 75 metres square or 75 square metres?

and no they are NOT the same

Mike

Either way, it usually takes about four hundred years of careful
attention. I don't think there's any secret to it: you just have to
keep on breaking down the lumps and picking out the stones, I'm
afraid. Then let it settle for a month or more, and weed and rake it
all again. Once you've got the nice tilth, it's better not to roll,
but to shuffle over the whole thing bit by bit: one book says "in the
manner of an old-age pensioner on black ice"! You should make
yourself a thing whose name I've forgotten, but which is a six-foot
plank with a long broom-handle in the middle: you drag this over and
over the tilth to level it. After sowing, over the next couple of
years, uneven bits will probably appear, to be dealt with in the
usual way: they aren't your fault.

I don't know if the following website will tell you anything you
don't know already:
http://www.dgsgardening.btinternet.co.uk/grass.htm

--
Mike.