Cómo cultivar plantas en botellas / Growing plants in bottles (Willem Van Cotthem)

Tengo el placer de anunciar una nueva versión española de mi video

I have the pleasure to announce a new spanish version of my video

http://youtu.be/HHCThgB2Y8Y

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Published by

Willem Van Cotthem

Honorary Professor of Botany, University of Ghent (Belgium). Scientific Consultant for Desertification and Sustainable Development.