[Community_garden] old tires for growing potatoes

[Diana Liu]

Zinc may not be as big of a problem, but Cadmium definitely is.  However, I've heard that  some of these chemicals/toxins may be locked into the soil (organic?) and not uptaken by the plants.  I wonder if people have researched this method, not to eat the produce at the end, but to measure whether chemicals are absorbed in the plants.  May be to grow plants for a couple of generation/years to see if the soil still lock the toxins (if it indeed can).  If the plants are not taking up these chemicals, that could be very helpful.  A lot of old used tires could be put into good use particularly in communities where resources for building materials may not be that readily available.


  On Fri, Mar 21, 2008 at 11:16 AM, Mike McGrath wrote:

Zinc and cadmium are the big contaminants that leach out in high amounts;
but I just find the whole idea repulsive, period. They're old, dirty and
made with toxic petrochemicals and metals.
Tires can--and should--be recycled professionally and burned for fuel in
clean plants; its the perfect way to dispose of them.

And hey--how about growing potatoes in DIRT?! There's an idea!

---McG

----- Original Message -----
From: "Linda Casto" 

To: 
Sent: Friday, March 21, 2008 11:07 AM
Subject: [Community_garden] growing potatoes in old tires


>A member on a garden website I belong to is recommending growing potatoes
>in old tires.
>
> I know there are contaminants that come from old tires but I don't
> remember what. (This was in a discussion in the last week or so).
>
> I'd like to be able to post something in response to this recommendation
> letting folks know what kind of contaminants they are turning loose in
> their gardens.
>
> Thanks
>
> Linda Casto
> Glenwood UMC community garden
> Columbus, Ohio
>
>
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