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Environment & Energy

(21,733 posts)

6. Actually, there’s a pretty good source of potassium and phosphorus available without mining

Tue Feb 23, 2016, 04:56 PM

Feb 2016

It’s called urine.
https://duckduckgo.com/?q=Phosphorus+Potassium+urine+fertilizer

Of course many people are squeamish about any thought of using human waste in an agricultural setting.

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The Nitrogen Problem [View all] progressoid Feb 2016 OP

The problem I see... NeoGreen Feb 2016 #3

Can I ask where that quote is from? nt NickB79 Feb 2016 #5

From the character... NeoGreen Feb 2016 #10

Fixing Nitrogen is late 1800 technology happyslug Feb 2016 #4

That used to be a good idea but now? Not so much ... Nihil Feb 2016 #11

Oh, I don’t know OKIsItJustMe Feb 2016 #14

Spark fixation of nitrogen was never a viable process. NNadir Feb 2016 #16

The title of your post borders on an oxymoron. NNadir Feb 2016 #18

Please better define "an evidence based approach". kristopher Feb 2016 #8

Ask the author. progressoid Feb 2016 #9

Screw that load of GMO apologia and address the real problem. Nihil Feb 2016 #12

Good luck with that. progressoid Feb 2016 #15