I suppose they may have benefits, but I'm not sufficiently knowledgeable to
say one way or another. I do know that back when I was developing my own
version of SuperThrive, I added humic acid - among other ingredients - and
it was better, but I cannot definitively attribute the difference to that
alone.

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Artwork, Books and Lots of Free Info!


"Jack" wrote in message
oups.com...
Ray, what about metabloic enhancers like Humic acid or Fulvic acid, I
know that they increase utilization of nutrients (www.Humates.com has
some good research papers) and are supposed to increase growth, drought
/ heat resistance etc, and hopefully flower size.

Jack