 |
| |||
| nitrogen-phosphorus ratio; N/P ratio | |||
|
phosphore relation azote : 3 Phrasen in 1 Thematik |
| Natürliche Ressourcen und Artenschutz | 3 |
|
| |||
| nitrogen-phosphorus ratio; N/P ratio | |||
|
phosphore relation azote : 3 Phrasen in 1 Thematik |
| Natürliche Ressourcen und Artenschutz | 3 |