In article ,
sam wrote:
Don't like the sound of the cardboard base,I'm afraid, NC.Cardboard is paper
is wood,and as it rots down it depletes the soil of nitrogen.Your 'greens'
and other nitrogen lovers will need a supplement, such as chicken manure
pellets,otherwise they will be stunted.

That is seriously overstated. While the fungi that break down lignin
use (and tie up) nitrogen as they grow, they release it as they die.
In any case, it is a minor effect.

So, don't worry either way.

Pulses make their own nitrogen and you will be able to grow organic
broad beans the envy of kings,Also peas.

Grrk. They fix nitrogen because they need it, and don't thrive in
low-nitrogen soils. Some legumes do, but they tend to be weedy.

When you harvest them cut off the haulms at ground level,since the roots
have
many nodules containing nitrogen.This will give you good soil for the
following year.

I dig them up and add them to the compost heap. That needs nitrogen,
too.


Regards,
Nick Maclaren.