Re: CULT: Sources of Phosphate


> Ground phosphate rock is a much cheaper and more effective source of phosphate.

Is this the same as colloidal phosphate (sold here as rock phosphate)?

-- 
Amy Moseley Rupp
amyr@austx.tandem.com, Austin, TX, zone 8b
*or* amyr@mpd.tandem.com
Jill O. *Trades, Mistress O. {}



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