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Pure human urine is a good fertiliser for cucumbers.
Heinonen-Tanski H, Sjöblom A, Fabritius H, Karinen P. Heinonen-Tanski H, et al. Among authors: karinen p. Bioresour Technol. 2007 Jan;98(1):214-7. doi: 10.1016/j.biortech.2005.11.024. Epub 2006 Jan 18. Bioresour Technol. 2007. PMID: 16413181
Microbial contamination of groundwater at small community water supplies in Finland.
Pitkänen T, Karinen P, Miettinen IT, Lettojärvi H, Heikkilä A, Maunula R, Aula V, Kuronen H, Vepsäläinen A, Nousiainen LL, Pelkonen S, Heinonen-Tanski H. Pitkänen T, et al. Among authors: karinen p. Ambio. 2011 Jun;40(4):377-90. doi: 10.1007/s13280-010-0102-8. Ambio. 2011. PMID: 21809781 Free PMC article.