| NP doses (kg∙ha−1) | Varieties | Mean | |
| S-17 | Pr-125 | ||
| No fertilizer (Control) | 59.33 | 51.67 | 55.50 e |
| NP @ 30 - 30 | 91.33 | 89.33 | 90.33 d |
| NP @ 50 - 30 | 96.00 | 94.00 | 95.00 cd |
| NP @ 50 - 50 | 99.00 | 95.00 | 97.00 bc |
| NP @ 70 - 50 | 102.00 | 100.33 | 101.17 ab |
| NP @ 70 - 70 | 103.67 | 101.00 | 102.33 a |
| Mean | 91.89 a | 88.56 b | - |