| 摘要 |
The invention relates to a substrate for hydroponic cultivation and to a method for producing said substrate, which includes means of inert support for the rooting and sustenance of plant roots, and is characterized in that said means of inert support include a plurality of granules made of plastic material and obtained by means of an extrusion process, which substantially dispenses with degassing in order to concentrate gases and permit the subsequent swelling of the plastic material at high temperatures. |
