| 摘要 |
<p>The invention relates to a substrate for soil-less culture.
<??>The substrate is formed by a felt made of inorganic fibres which, if necessary, contains a wetting agent and which has been obtained by continuous longitudinal compression at a rate of between 1.5 and 15 of a sheet of inorganic fibres in which the fibres tend at the beginning to arrange themselves in layers or strata which are parallel to the bottom and top faces of this sheet, and compression takes place before the sheet is treated thermally so as to set the structure.
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