| Value | Category | Cases | |
|---|---|---|---|
| 1 | don’t know/ no answer | 14 |
70%
|
| 2 | from conventional tillage to no tillage | 2 |
10%
|
| 3 | from no tillage to conventional tillage | 1 |
5%
|
| 4 | from reduced to conventional tillage | 3 |
15%
|
| Sysmiss | 169 |