| 摘要 |
This invention includes a coherent growth substrate product (1) formed of mineral wool, the product having two opposed top (2) and bottom (3) surfaces and a seed hole (4) extending from the top surface (2) towards the bottom surface (3), the base of the seed hole defining a seed bed (B), wherein the volume of the growth substrate product is not more than 150 cm, and wherein the seed bed (B) has a width of at least 5 mm. |
