Plant food?

I've been using a plant food called nitrosol which is made from blood and bone meal. Its high in Nitrogen. This food has been working great so far.
I am now trying another plant food made from fish. The fish one is even higher in nitrogen.
I'm looking for the best organic plant food.

Anyone have any experience with these foods?

I say fook the fish one!!! I'm going back to the nitrosol.