"David Hare-Scott" wrote in message
Billy wrote:
In article ,
"David Hare-Scott" wrote:

Billy wrote:

Add pulverized egg shells (put in blender with some water) to your
lawn. Egg shells breakdown slowly, so you won't get a quick
response, but they will break down eventually.


Get serious. Ted already has enough goofy advice. If the lawn is
no bigger than 3m square and he has 5 years to wait this is a good
idea.

David

Explain your goofy response.

I appreciate your aim of re-use and recycle but in this case it isn't
practical.

How many eggs do you have to eat to get enough shell to spread on a yard?
Sure it depends on the size of the yard but we are talking about some
kilos of egg shell.

How fine can you grind it? Not very fine without a mill. Fine garden
lime or gypsum will take months to work, ground shell will be much coarser
and take years.

IMO, if the OP wants to add calcium, all he/she needs to do is to just find
someone who still has a wood burning fireplace/heater, then s/he could just
spread the seived ash which contains calcium. It should be spread thinly
like icing sugar (confectioner's sugar in USian) on the top of a Victoria
Sponge cake.
http://en.wikipedia.org/wiki/Wood_ash

For nitrogen I'd spread 'your friend and mine' - good old blood and bone.