File:Reuse of urine demonstration - fertilised and not fertilised tomato plant experiment (3617543234).jpg
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current | 08:22, 1 November 2014 | 1,110 × 350 (242 KB) | Fæ | == {{int:filedesc}} == {{information |description={{en|1=The tomato plants on the left were fertilised with urine, collected at an office building in Germany. The right tomato plants were not fertilised. The difference between both is clear: the fertil... |
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