Table 4.
Payback time (years) for the comparative economic analysis of our experimental system compared to a conventional system.
| Increase of Investment Payments (€) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||||
| 10,200 | 12,750 | |||||||||||
|
| ||||||||||||
| Farm size (ha) | ||||||||||||
|
| ||||||||||||
| r✠(%) † | 5 | 10 | 15 | 20 | 50 | 100 | 5 | 10 | 15 | 20 | 50 | 100 |
| 4 | † | >10 | 7 | 5 | 2 | 1 | † | >10 | 10 | 6 | 2 | 1 |
| 5 | † | >10 | 8 | 5 | 2 | 1 | † | >10 | 10 | 6 | 2 | 1 |
| 6 | † | >10 | 8 | 5 | 2 | 1 | † | >10 | >10 | 6 | 2 | 1 |
| 7 | † | >10 | 9 | 5 | 2 | 1 | † | >10 | >10 | 7 | 2 | 1 |
| 8 | † | >10 | 9 | 5 | 2 | 1 | † | >10 | >10 | 7 | 2 | 1 |
| 9 | † | >10 | 10 | 5 | 2 | 1 | † | >10 | >10 | 7 | 2 | 1 |
| 10 | † | >10 | 10 | 6 | 2 | 1 | † | >10 | >10 | 7 | 2 | 1 |
†
Never recovers due to continuous negative cash flow;
✠
Annual updating rate.