In article U%IAb.9552$5g.2817@okepread04,
OneHotBtch4U32 wrote:
Is anyone familiar with the amount of time it takes the iron in most
fertilizers to breakdown to a point where getting some of the soil on
concrete no longer poses a rust problem?

What I'm working with it about 2% iron, and it has been watered thoroughly
and deep.

Huh? What exactly are you talking about?

Short of proton decay, or other form of nuclear destruction, as an
_element_ (not a compound) iron does not decay. Depending on soil type,
watering, etc., you might flush it out of your area, but it will only go
somewhere else.

What is this "rust problem"? Are you trying to prevent or avoid corrosion?

Please clarify your question.

-frank
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