Pat,
I can see were my post could confuss some readers. Seasol is not a fertilizer so to speak. It contains very little NKP but is very rich in most trace elements. It acts as a stimulant to plant growth, especially root development. I find it very benefical to my trees to given them a dose of a weak solution immediately after repotting.
here is an extract from the Seasol site:
http://www.seasol.com.au
"Seasol is a dynamic growth stimulant and plant tonic, it is not by definition a fertiliser. Seasol contains plant growth regulators (auxins and cytokinins) which have a profound effect on the vegetative and reproductive capacity of the plant. In other words, Seasol promotes growth by stimulating the plant on a hormonal level, rather than by providing nutrients as a fertiliser does."