Phalaenopsis fertiliser

[OzPhal]

Hi everybody,

I'm currently getting my head around all of these different fertilisers etc that are needed at various stages of growth of Phalaenopsis species. I've got some seedlings that I deflasked of P. lobbii they're currently in a compot with sphagnum moss as the potting medium along with some other species that are more advanced (9-10cm leaf span) - they're similarly planted in sphagnum moss. All compots/seedlings are in a heated proagation tray with temperatures in the range of 23 - 28oC and high humidity (there's also a computer fan to aid in air circulation to discourage mould). Anyway, I'm in Australia so I don't know how that impacts on the presentation of the data but I have a fertiliser that has the figures:

N 17.7%
P 7.9%
K 16.0%

plus trace elements of:

S 2.8%
Mg 0.06%
Fe 0.05%
Mn 0.24%
Zn 0.03%
Cu 0.02%
B 0.02%
Mo 0.0014%

I'm wanting to encourage vegetative growth to get the seedlings/compot established... would this fertiliser be suitable for the old 'weakly weekly' approach? I was going to apply 1/4 strength to the deflasked seedlings and 1/2 to the 9 - 10cm leaf span seedlings