| Value | Category | Cases | |
|---|---|---|---|
| 1 | fertilizer (unspecified) | 1 |
0.6%
|
| 2 | NPK 15:15:15 | 22 |
13.3%
|
| 3 | NPK 20:20:20 | 7 |
4.2%
|
| 4 | NPK (not specific) | 15 |
9.1%
|
| 5 | Urea | 116 |
70.3%
|
| 6 | other | 4 |
2.4%
|
| Sysmiss | 7286 |