| ASW deficit levels (%) | PH (cm) | LA (cm2) | RSR | DMA (g∙plant−1) |
| 0 | 98.0a | 221.3a | 0.0026c | 8.46a |
| 25 | 90.0b | 203.8b | 0.0026c | 8.36a |
| 50 | 75.0c | 153.0c | 0.0075b | 4.39b |
| 75 | 55.0d | 82.6d | 0.0168a | 2.66c |
| P rates (kg∙ha−1) | ||||
| 0 | 79.2 | 170.4 | 0.008 | 6.07 |
| 10 | 79.3 | 163.3 | 0.008 | 6.00 |
| 20 | 79.9 | 163.4 | 0.007 | 5.91 |
| 30 | 79.6 | 163.6 | 0.007 | 5.89 |
| Ns | Ns | Ns | Ns | |
| CV (%) LSD (0.05) SE± | 8.77 6.56 0.31 | 8.16 12.68 0.91 | 12.37 0.0009 0.26 | 6.67 0.375 0.11 |