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| humus | |||
| humus The more or less decomposed organic matter in the soil. Besides being the source of most of the mineral salts needed by plants, humus improves the texture of the soil and holds water, so reducing the loss of nutrients by leaching | |||
| top soil | |||
| topsoil | |||
| litter | |||
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| humus | |||
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humus : 76 a las frases, 7 temas |
| Agricultura | 6 |
| Ambiente | 6 |
| Ciencia del suelo | 7 |
| Ciencias de la vida | 30 |
| Ciencias naturales | 24 |
| General | 1 |
| Silvicultura | 2 |