| Value | Category | Cases | |
|---|---|---|---|
| -999 | Don't know | 0 |
0%
|
| -888 | Refuse to answer | 0 |
0%
|
| 1 | Basal dressing (applied during planting or within the first week of planting) | 6 |
12%
|
| 2 | Top dressing (applied after the fourth week or when crop grows up to knee height | 36 |
72%
|
| 3 | Both | 8 |
16%
|
| 11 | .R | 2 | |
| Sysmiss | 4750 |