| Planned mean comparisons | Mean | P value |
Control | Control vs. rest | 14.8 | 0.0016 |
Rest | 13.9 | ||
FYM | FYM vs. urea | 12.9 | 0.0921 |
Urea | 13.5 | ||
Sole | Sole vs. mixed | 13.2 | 0.0000 |
Mixed | 15.2 |