In this video, we briefly explain biodynamic farming using aquaponic techniques and tour a classroom with various systems in place for hydroponic and aquaponic farming - both forms of sustainable and predominately organic biotechnologies.
Related tags:
![Aspetti della Sardegna N° 1 - La Costa Nord / 1955 [Istituto LUCE]](http://i4.ytimg.com/vi/-NpYImxOfeU/0.jpg)
