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

Published by

Willem Van Cotthem

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