Properties of three different composts
Numéro d’image : 11685029
| A 15cm flower pot containing three different composts To the left is leaf mould. To the top (rust hue) is a commercial peat-based compost. To the bottom right is a commercial loam based compost. The leaf mould contains mostly organic materials,including small animals,bacteria and fungi. It is poor in plant nutrients and not a good growing medium on its own. The peat-based compost is high in organic material (humus),but has a low mineral content and requires artificial fertilisers to sustain good plant growth. The loam based compost is a mixture of mineral and organic material from loam with added fertilisers. It lacks the coarser mineral particles that are characteristic of a natural soil. Commercial products are subjected to a process of sterilisation. This destroys weed seeds and pathogenic micro-organisms,but also removes beneficial micro-organisms | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Burgess, Dr. Jeremy |
| Taille de l’image : | 5212 px × 3468 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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