Paul M. Cook wrote:
Well, planting season is almost here. I am going to double my tomato crop
this year. I have ready access to oyster shells and crushed coral. How
good of a calcium supplement would these make? I grow in pots, 22 inch
pots - 1 plant per pot. I'd like to just mix in a large quantity of either
into my planting soil. I did pretty good last year using a liquid calcium
supplement but it was kind of expensive tedious. Hoping to do something
cheaper and easier this year.

Paul



You could put some oyster shells in a plastic bucket of water and add
a little muriatic acid (or a bunch of vinegar.) Stir it up and let it
sit for a few days. The shells will neutralize the acid, and the
liquid will be loaded with of soluble calcium++. Pour it around the
plants. HTH :-)

Bob