| FV | DF | SS | MS | F |
| Water slides (W) | 5 | 510.536 | 102.107 | 36.28** |
| Error-W | 18 | 50.663 | 2.814 | |
| Plots | 23 | 516.199 | ||
| Potassium (K) | 5 | 438.586 | 87.717 | 94.35** |
| Int. W x K | 25 | 61.967 | 2.478 | 2.67* |
| Erro-K | 90 | 83.675 | 0.929 | |
| Total | 143 | 1145.428 | ||
| CV of plots (W) = 21.83% | ||||
| CVof split plots (K) = 12.55% | ||||