| 摘要 |
A planting medium is disclosed which comprises from 40-90 % by weight of a first component and from 10-60 % by weight of a second component, the first component comprising particles of cork and the second component comprising expanded vermiculite. A preferred medium contains, by weight, about 40 % cork particles; about 25 % dried solid matter derived from seaweed or other marine or littoral plant source; about 20 % expanded vermiculite; and about 15 % expanded pearlite. Nutrients may be included in the medium. The planting medium may be used in particulate form or in compacted form, e.g. as seed blocks. In a preferred embodiment, the planting medium is encapsulated together with a pre-germinated seed in a water-permeable envelope, e.g. one formed of tea bag paper. |
