12:27 am

March 10, 2011

Hi .
Just posting this so others using these media, are alerted to the existence of undesirable grades of these materials
I've not yet used any of these materials but am planning to use perlite a soon as the nursery guy gets it
Quote : Vermiculite available
locally is for industrial use and often
contaminated by oil residue etc…
Perlite: Several reasons why we don't
like this material: the grade available
is industrial, being imported it is too
expensive; it can lead to fluoride toxicity
for sensitive plants and is one cause
of leaf chlorosis.
http://www.hoscoindia.com/article2.htm
-
1 Guest(s)
