[Jewelry making - Article 00152] - Re: [Orchid] Recycling investment

[John Donivan]

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>     There is not much else in investment maybe some wetting agents. 

    Much has been said about this, and it's mostly all true, as far as
    it goes. Used investment may or may not help your soil chemically -
    it may alter the Ph which is good or bad, it will add a sandy
    component which is good or bad - we have some clay spots where it
    might help fluff up. What hasn't been said that's significant is
    that it is sterile. It always was sterile, but when you burned it
    out you made sure of it. Most soil amendments are "live" - compost,
    potting soil, etc. all have living organisms in them that contribute
    to the whole soil environment thing. That doesn't mean investment is
    bad, just that it's only good as a sandy substance that may alter
    your ph, and no more. 

http://www.donivanandmaggiora.com


 
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