File:EKult021.jpg

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Deutsch: Elektrokultur: Elektroden in Gartenerde mit Kompost, aus Walter Häntzschel: Der Einfluß der Elektrizität auf das Wachstum der Pflanzen
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Source Walter Häntzschel: Der Einfluß der Elektrizität auf das Wachstum der Pflanzen. In: Erfindungen und Experimente. Band II, W. Herlet, Leipzig 1906
Author Walter Häntzschel

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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.


This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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current17:40, 15 February 2021Thumbnail for version as of 17:40, 15 February 20211,181 × 541 (103 KB)ProfessorX (talk | contribs)Uploaded a work by Walter Häntzschel from Walter Häntzschel: Der Einfluß der Elektrizität auf das Wachstum der Pflanzen. In: Erfindungen und Experimente. Band II, W. Herlet, Leipzig 1906 with UploadWizard

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