| Site | Ameliorant | V9 | R1 | ||||
| Year 1 | Year 2 | Year 3 | Year 1 | Year 2 | Year 3 | ||
| Bothaville | Biozone | + | 0 | 0 | 0 | 0 | − |
|
| Gliogrow1 | 0 | 0 | + | 0 | + | − |
|
| Growmax1 | − | 0 | + | + | 0 | − |
|
| K-humate1 | + | 0 | + | 0 | 0 | − |
|
| Lanbac1 | − | 0 | + | 0 | 0 | − |
|
| Crop care2 | + | 0 | 0 | 0 | 0 | − |
|
| Montys2 | + | 0 | 0 | 0 | 0 | − |
|
| Growmor3 | − | 0 | 0 | 0 | 0 | − |
|
| Promis3 | 0 | 0 | + | 0 | 0 | − |
| Ottosdal | Biozone1 | − | 0 | 0 | + | 0 | 0 |
|
| Gliogrow1 | − | + | − | 0 | + | 0 |
|
| Growmax1 | − | + | 0 | 0 | 0 | 0 |
|
| K-humate1 | − | + | 0 | + | 0 | + |
|
| Lanbac1 | − | 0 | − | 0 | 0 | 0 |
|
| Crop care2 | − | + | 0 | 0 | 0 | 0 |
|
| Montys2 | − | + | − | 0 | 0 | 0 |
|
| Growmor3 | − | + | − | 0 | 0 | 0 |
|
| Promis3 | − | 0 | 0 | 0 | 0 | 0 |
| Potchefstroom | Biozone | 0 | 0 | 0 | 0 | 0 | − |
|
| Gliogrow1 | 0 | 0 | 0 | + | 0 | − |
|
| Growmax1 | − | 0 | 0 | 0 | 0 | − |
|
| K-humate1 | − | 0 | 0 | 0 | 0 | − |
|
| Lanbac1 | 0 | 0 | 0 | 0 | 0 | − |
|
| Crop care2 | 0 | 0 | 0 | 0 | 0 | − |
|
| Montys2 | − | 0 | 0 | 0 | 0 | − |
|
| Growmor3 | 0 | 0 | + | 0 | 0 | − |
|
| Promis3 | + | 0 | 0 | 0 | 0 | − |