[Scpg] Chemical nitrogen vs nitrogen fixing plants

[Sierra Permaculture Design]

Nitrogen is easy. It's the lack of replaceable phosphorous that we really
need to be worried about.

Paul


On Mon, Jun 9, 2008 at 7:52 AM, Cory Brennan <cory8570 at yahoo.com> wrote:

> I would be interested in hearing people's reaction to this article. His
> premise is that we cannot replace our "Green Revolution" food growing
> methods with purely organic methods because those don't produce enough
> nitrogen.  He omits the concept of polycropping as a potential solution.
> I'm especially interested in any case studies or documented examples that
> would refute his premise.
>
>
> http://facultystaff.richmond.edu/~cstevens/ES201/local/Smil%20-%20Global%20Population%20and%20the%20Nitrogen%20Cycle.pdf<http://facultystaff.richmond.edu/%7Ecstevens/ES201/local/Smil%20-%20Global%20Population%20and%20the%20Nitrogen%20Cycle.pdf>
>


-- 
Sierra Permaculture Design
SierraPermaculture.com
---
Permaculture: Care of Earth, Care of People, Share the Surplus
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