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PPT-Käymälästä peltoon Eeva-Liisa Viskari

PPT-Käymälästä peltoon Eeva-Liisa Viskari

Author : spottletoefacebook | Published Date : 2020-08-05

Yliopettaja Degree Programme in Energy and Environmental Engineering Hieman historiaa 1800luvulla ja vielä 1900luvun peltoviljely perustui lannoittamiseen karjanlannalla

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Käymälästä peltoon Eeva-Liisa Viskari: Transcript

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