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| mulch A layer of organic material applied to the surface of the ground to retain moisture; mulching is the spreading of leaves, straw or other loose material on the ground to prevent erosion, evaporation or freezing of plant roots | |||
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mulch : 6 phrases, 4 sujets |
| Ressources naturelles et conservation de la faune | 1 |
| Science du sol | 1 |
| Sciences de la vie | 1 |
| Sciences naturelles | 3 |