Human urine shown to be an effective agricultural fertilizer (scientificamerican.com) 1 points by Ras_ 16y ago ↗ HN
[–] Ras_ 16y ago ↗ Pradhan's dissertation: http://epublications.uef.fi/pub/urn_isbn_978-952-61-0062-3/i...
1 comment
[ 6.0 ms ] story [ 22.2 ms ] thread