humus, humic acid and natural organic chelation agents

• To: Aquatic-Plants at actwin_com
• Subject: humus, humic acid and natural organic chelation agents
• From: Stephen.Pushak at saudan_HAC.COM
• Date: Fri, 31 May 1996 15:03:07 PDT
• In-Reply-To: <199605311939.PAA32188 at looney_actwin.com>; from "Aquatic-Plants-Owner at ActWin_com" at May 31, 96 3:39 pm

What's in humic acid? Is it actually a mixture of several organic
acids? Does it contain EDTA or other chelation agents? Are there
other organic chelation agents in humus?

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