Welcome Ron !

You write :

>We
>collect all the shrimp and crab shells, 32 million lbs last year, and dry
>and grind them and sell the resulting meal for organic fertilizer...

I've used this stuff for two years in my vegetable garden and it's pretty
fantastic.  I've got tomatoes and brocoli coming out of my ears and piles
more waiting to be eaten.

OTC: I use only hand tools in my garden...

Paul Pedersen
Montreal (Quebec)