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| humus; top soil | |||
| leaf moulds | |||
| 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 | |||
| topsoil | |||
| mould | |||
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| hotbed muck-soil; humous soil | |||
| duff | |||
| mor | |||
| decomposed organic matter; soil ulmin | |||
| vegetable soil | |||
| |||
| humic; humous | |||
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Humus : 27 a las frases, 5 temas |
| Agricultura | 6 |
| Ciencia del suelo | 4 |
| Ciencias de la vida | 12 |
| Ciencias naturales | 3 |
| Recursos naturales y conservación de la vida silvestre. | 2 |