three-yearly crop rotation
| system
| three-yearly crop rotation | |
| econ. agric. | Dreifelderwirtschaft |
| system | |
| gen. | Methode; System; Anlage |
| refrig. | System |
| tech. | Anlage; Anordnung; Bauart; Netz; Netzverbund; Bezugssystem datum |
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| Dreifelderwirtschaft f | |||
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three-yearly crop rotation : 2 phrases in 1 subject |
| Economics | 2 |