Date: Fri, 25 Apr 1997 13:21:57 +-100 From: Nigel Hurneyman <NHurneyman@softwar1.demon.co.uk> To: cp@opus.hpl.hp.com Message-Id: <aabcdefg1660$foo@default> Subject: Re: perlite, vermiculite?
Hi Niels,
Apologies if someone has already answered your question, but I believe leca
are expanded clay granules. They are chemically inert, but absorb water and
nutrients.
NigelH
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