"John Vanini" wrote ..
I'm growing leeks on my allotment and have been told to give them a heavy
top dressing of blood, fish and bone this month.
Someone else on the allotment has told me to use Sulphate of Ammonia
instead.
As I normally don't put any dressing on (I just mulch and/or draw the soil
up around the stems) is there anyone who has experience of growing leeks
and can advise me, please, which, if either, I should do?

We have never given our Leeks any special fertilizer other than a handful of
chicken pellets thrown along the row and always have a good supply through
the winter.
If you wanted to show them that would be a different matter.
Watch out for the Leek Moth, it's spreading up the country and really does
make a mess of your young leeks, they will eventually grow through the
attack although will be knocked back somewhat.

--
Regards
Bob Hobden
17mls W. of London.UK