To: North American Fruit Explorers <nafex@lists.ibiblio.org>
Subject: Re: [NAFEX] Trace elementsr
Date: Thu, 26 Oct 2006 08:52:43 -0400
Quoting Ginda Kaplan Fisher <list@ginda.us>:
> I read some figures on lead uptake in plants several years ago,
> when I
> was shopping for a house and testing soil for lead. Plants take up
>
> lead, but disperse it differentially though their tissues. As a
> rule
> of thumb, dark green leafy vegetables have the most lead, and fruit
> has
> the least lead. (My guess is it moves like calcium.) There's some
>
> kind of kale or something that's grown on purpose in lead-heavy
> soil to
> clean up the soil. (The crop is disposed of as hazardous waste.)
> Root
> veggies vary a lot, but can also have high lead loads, maybe just
> because they are so close to the source?
>
> Ginda
I think about this every time I harvest mustard and turnip greens out
of my garden.