On Wed, 15 Jun 2005 12:54:30 +0000, Chris_Moran
wrote:

snipped interesting description of osmotic growing system

Sounds interesting. What do you use as your osmotic membrane? When I
did chemistry at school (more years ago than I care to mention!),
osmotic membranes were either a difficult-to-prepare membrane of
copper ferrocyanide, or the cellophane wrapper from certain brands of
cigarette packet (not all worked). Presumably the science of such
membranes has moved on a tad!

Is it any better than supplying water via capilliary matting, which I
imagine also allows the plant to take up only the water it requires?
How do you compensate for loss of salts (nutrients) taken up by the
plant?



--
Chris

E-mail: christopher[dot]hogg[at]virgin[dot]net