[Actually posted this once, but no-one answered so I decided to try again]
When growing plants (esp. vegetables and teas), which are the
best sources for following nutrients: Ca, Mg, P, K, and Potash (especially in
Eggshells contain at least Ca - is it in useful form? Any other
nutrients in them?
What about wood ash?
- I am quite new to this sort of thing, but catching up quickly, so please