[Scpg] Chemical nitrogen vs nitrogen fixing plants

[Patrick Carroll]

I agree with Paul. K and P are more challenging. 

 

From: scpg-bounces at arashi.com [mailto:scpg-bounces at arashi.com] On Behalf Of
Sierra Permaculture Design
Sent: Tuesday, June 10, 2008 1:18 PM
To: cory8570 at yahoo.com
Cc: lapg at arashi.com; scpg at arashi.com
Subject: Re: [Scpg] Chemical nitrogen vs nitrogen fixing plants

 

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%20P
opulation%20and%20the%20Nitrogen%20Cycle.pdf
<http://facultystaff.richmond.edu/%7Ecstevens/ES201/local/Smil%20-%20Global%
20Population%20and%20the%20Nitrogen%20Cycle.pdf> 



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