| Source of variation | Regression models | |||||||||
| Water depths (W) | FMP with ears | = | −0.00005 | W2 | + | 0.07 | W | 42.28 | with R2 = | 0.97 |
| FMP with ears | = | 66.09 | t∙ha−1 | To | W = | 690 | mm | |||
| Potassium (K) | FMP with ears | = | −0.002 | K2 | + | 0.419 | K | 51.73 | with R2 = | 0.99 |
| FMP with ears | = | 73.68 | t∙ha−1 | To | K = | 104.75 | Kg∙ha−1 | |||
| Water depths (W) | FMP without ears | = | −0.00003 | W2 | + | 0.05 | W | 35.66 | with R2 = | 0.96 |
| FMP without ears | = | 53.29 | t∙ha−1 | To | W = | 766.7 | mm | |||
| Potassium (K) | FMP without ears | = | −0.002 | K2 | + | 0.22 | K | 43.03 | with R2 = | 0.89 |
| FMP without ears | = | 48.74 | t∙ha−1 | To | K = | 52.1 | Kg∙ha−1 | |||