If it's for plants its part of thier domain. The stupid thing is products
can contain humic acid. The label just cant SAY it contains them. Even if
the product is called Humic black thats OK, but the same bottle can't say
'contains Humic acid'. It is actually a very very weak acid only. pH 5.5
ish even at full strength. Anything that isn't NPK they don't like. Humic
acid is naturally present in all surface water, so you know the G need to
regulate it.

"K Barrett" wrote in message
. ..
Duncan, what doesn't the Canadian AG like about humic acid? The word
'acid'? Weird.

K Barrett

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