printGREEN 3d printer from Slovenia

Can you guess with what material is this printGREEN 3d printer from Slovenia printing?



The material is mixture of water, fertile soil and seeds. After some time, seeds sprout and plants start to grow. It is a sort of design art  project but I think this technology could be used in some agricultural or gardening machinery.

The team behind this project:Maja Petek, Tina Zidanšek, Urška Skaza, Danica Rženičnik and Simon Tržan. They worked with assistant professor Dušan Zidar to develop it. The original name in Slovenian is “Tiskaj ZELENO”. 
Project homepage:

http://tiskajzeleno.wix.com/tiskaj-zeleno#!printgreen/c4nw



























On personal note: Slovenians are our dear neighbors and I had several technology, art and DIY workshops with them. They have cool art-tech scene and are pretty chill crowd to hang out with.

Here is another cool project from Slovenia:

http://diy3dprinting.blogspot.com/2013/08/koruza-using-diy-3d-printing-for-laser.html