Susan Wakeman wrote:Thank you for this excellent discussion. I'm a little confused though how somebody with high lead soil should proceed. Here's what I gather from this thread. Please correct or comment:
1. Introduce fungi such as oyster or wine cap and their food. Fungi slow the uptake of heavy metals by plants. Are the fruit bodies healthy to eat? What happens if you keep chicken in such a plot, will their eggs and meat have a higher level of heavy metals?
2. Fruit are safe to eat.
3. Phytoremediation by planting brassica and sunflower. Surely you need to dispose of the plants off site?
4. Planting vegetables in raised beds. This supposes that they root only in the brought in soil. However veg root much deeper than we suppose. Up to several metres I've read. Is that not in contradiction to point three?