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American Chemical Society's Weekly PressPac -- Oct. 3, 2007
Date:10/8/2007

cultural and Food Chemistry, a bi-weekly publication.

Despite the 'yuk!' factor, urine from healthy individuals is virtually sterile, free of bacteria or viruses. Naturally rich in nitrogen and other nutrients, urine has been used as fertilizer since ancient times. Urine fertilization is rare today. However, it has gained attention in some areas as farmers embrace organic production methods and try to reduce use of synthetic fertilizers.

In the new study, Surendra K. Pradhan and colleagues collected human urine from private homes and used it to fertilize cabbage crops. Then they compared the urine-fertilized crops with those grown with conventional industrial fertilizer and no fertilizer. The analysis showed that growth and biomass were slightly higher with urine than with conventional fertilizer. There was no difference in nutritional value of the cabbage. "Our results show that human urine could be used as a fertilizer for cabbage and does not pose any significant hygienic threats or leave any distinctive flavor in food products," the report concludes.

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CONTACT:
Surendra K. Pradhan, MSc, MPH
University of Kuopio
Kuopio, Finland
Phone: 358-17-163169
E-mail: surendra.pradhan@uku.fi

Helvi Heinonen-Tanski, Ph.D.
Department of Environmental Science
University of Kuopio
Kuopio, Finland
Phone: 358-17-163152
Fax 358-17-163191 or 358-17-163230
E-mail: helvi.heinonentanski@uku.fi

ARTICLE #4 FOR IMMEDIATE RELEASE'/>"/>

Contact: Michael Woods
m_woods@acs.org
202-872-4400
American Chemical Society
Source:Eurekalert

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