Water retained by various soil ingredients

Shmuel Silinsky gardenbetter@gmail.com
Wed, 24 Oct 2012 06:25:12 PDT

Mike, those numbers are great to see. What size is your perlite?

Here in Israel we have something called tuff which is a volcanic rock with
lots of air holes. It comes in various size; what I usually use for soil
mix is the 8 - 12 mm size.Is this the same as your pumice?

I always thought perlite adds air to a mix?  Is that wrong?



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