| Particulars | Ammonium concentration (mg∙kg−1) × dose of glufosinate (g a.i. ha−1) | Injury level (%)× dose of glufosinate (g a.i. ha−1) | Injury level (%) × ammonium level (mg∙kg−1) | |
| Regression parameters | a | - | 100.000 | 100.000 |
| b | - | 0.296 | 0.296 | |
| c | - | 0.006 | 0.006 | |
|
| a' | 798.900 | - | 798.900 |
|
| b' | 7.783 | - | 7.784 |
|
| c' | 0.004 | - | 0.004 |
| R2 | 0.939 | 0.999 | 0.980 | |
| F regression | 57.260 | 9785.030 | 269.310 | |