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| Subject: Sustainable farming project combines aquaculture and hydroponics Tue Jul 09, 2013 3:01 am | |
| Tomatoes and fish are being farmed together in the same environment. Dirty water from the fish tanks is used for providing mineral nutrients that are essential for plant growth.
http://www.dw.de/sustainable-farming-project-combines-aquaculture-and-hydroponics/a-16927582 |
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