eh...
if your growing in soil... staying organic might be a good choice
http://www.rollitup.org/view.php?pg=...article&id=577
or if you are going to go with a chemical fertilizer, make sure its complete with micro nutrients... and start at 1/3 or half strength as it recommends... chemicals can burn plants if overused
those organics though, like blood meal and worm casts etc. etc. won't burn really