| Value | Category | Cases | |
|---|---|---|---|
| -999 | Don't know | 0 |
0%
|
| -888 | Refuse to answer | 0 |
0%
|
| 1 | Side placement (placed near the base of the crop at one side) | 43 |
50%
|
| 2 | Ring (placed around the base of the crop) | 17 |
19.8%
|
| 3 | Broadcast (sprinkled on the farm) | 25 |
29.1%
|
| 4 | Burial (buried by the side of the crop) | 1 |
1.2%
|
| Sysmiss | 4716 |