| 摘要 |
<p>The invention relates to the field of seed germination and growing of plants. A composition comprising a clay, an inert material, optionally a fibrous material, and a fourth component is provided, characterized in that said fourth component comprises a cation selected from the group consisting of Al, Zr and Ti and an anion selected from the group consisting of oxyhydroxide, oxychloride, nitrate, sulfate, chloride, hydroxide and alkoxide.</p> |
