Table 4.
Effects of different nitrogen and phosphorus combinations on relative growth rate (RGR) of sesbania pea at different growth stages in saline soil in 2020 and 2021.
| Treatment | Relative growth rate(RGR)(kg·ha -1·d -1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 0-47 d | 47-72 d | 72-110 d | 110-141 d | 141-163 d | ||||||
| 2020 | 2021 | 2020 | 2021 | 2020 | 2021 | 2020 | 2021 | 2020 | 2021 | |
| N1P1 | 0.85d | 0.85c | 32.20e | 24.40e | 108.95e | 102.11e | 143.55e | 118.71e | 60.00e | 49.09d |
| N1P2 | 1.06c | 1.06b | 36.40d | 30.40d | 121.05d | 117.11d | 159.35d | 128.39d | 66.82d | 54.09c |
| N2P1 | 1.06c | 1.06b | 39.60c | 35.60c | 131.05c | 106.05c | 172.90c | 158.71bc | 72.27c | 75.27b |
| N2P2 | 1.49a | 1.28a | 50.00a | 46.80a | 165.53a | 135.79a | 218.39a | 234.84a | 91.36a | 85.45a |
| N3P1 | 1.28b | 1.06b | 43.60b | 42.80b | 145.00b | 120.79b | 191.29b | 163.55b | 80.00b | 78.18b |
| N3P2 | 1.28b | 1.06b | 39.20c | 36.00c | 130.79c | 124.21b | 172.26c | 140.00cd | 72.27c | 56.82c |
| N | *** | *** | *** | *** | *** | *** | *** | *** | *** | ns |
| P | *** | * | *** | *** | *** | *** | *** | ** | *** | * |
| N*P | *** | *** | *** | *** | *** | *** | *** | ** | *** | ns |
DAS, day after seeding. Different letters in each column indicate significant differences between different treatments at same growth stage at P<0.05 level. *significant at P<0.05, **significant at P<0.01, ***significant at P<0.001. ns, no significant and P>0.05.