| S. no | Growth stage | No of pumping hours | No of irrigations | Water req. in m3∙ha−1 | Cumulative water req. in m3∙ha−1 | ||||
| SRI | Conventional | SRI | Conventional | SRI | Conventional | SRI | Conventional | ||
| 1 | Land preparation | 108 | 106 | 9 | 9 | 1166.4 | 1144.8 | 1166.4 | 1144.8 |
| 2
| Nursery (period of 24 days) | 18 | 21 | 29 | 33 | 194.4 | 226.8 | 1360.8 | 1371.6 |
| 3
| Active tillering to Panicle initiation (period of 60 days) | 364 | 540 | 33 | 45 | 3931.2 | 5832 | 5292 | 7203.6 |
| 4 | Booting to flowering (30 days) | 360 | 480 | 12 | 16 | 3888 | 5184 | 9180 | 12,387.6 |
| 5
| Maturity & Harvesting (30 days) | 191 | 216 | 16 | 18 | 2062.8 | 2332.8 | 11,242.8 | 14,720.4 |
|
| Total | 1041 | 1363 | 99 | 121 | 11,242.8 | 14,720.4 | 28,242 | 36,828 |