Many moons ago, when I was experimenting with developing my own,
better-but-much-cheaper SuperThrive (abandoned, due to EPA regs), I began
using humic acid as an additive to the formulation.

I am quite certain of its benefit in soils, as it helps release
otherwise-sequestered nutrients, but I questioned its applicability to
orchid-growing.

I know this is quite unscientific, but about 4 months ago - just before the
time I had to start mostly "ignoring" my collection due to the various
surgeries I endured - I added a liquid humic acid concentrate to my
fertilizer feed tank, so have been feeding with it (it ends up being about a
teaspoon per gallon), and it "looks" like it may be a "plus" after all, as I
am seeing more growth and blooms than I had been (again I'll state - it's
quite an unscientific assessment).

Anyone else have any thoughts or experience?

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
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