Table 13.
Effect of crop management practices and nitrogen levels on agronomic N use efficiency, partial factor productivity and nitrogen contribution rate.
| Parameter |
ANUE (kg grain kg −1N) |
PFPN (kg grain kg−1N) |
FCRN (%) |
|||
|---|---|---|---|---|---|---|
| Season | WS | DS | WS | DS | WS | DS |
|
Crop establishment method (CEM) | ||||||
| SRI | 21.3 | 12.03 | 64.3 | 58.89 | 27 | 17.7 |
| CP | 13.3 | 13.8 | 54.7 | 39.76 | 18 | 27.5 |
| LSD (0.05) | NS | NS | 4.55 | 7.181 | NS | NS |
| SE |
3.9 |
2.688 |
1.53 |
2.417 |
5.22 |
3.38 |
|
Nitrogen levels (N) | ||||||
| 0 N | - | - | - | - | - | - |
| 60 N | 27.2b | 19.3b | 109.4 | 88.89c | 23.3 | 22.7 |
| 90 N | 24.4b | 23.8b | 79.3 | 70.23b | 29.8 | 33.4 |
| 120 N | 19.7b | 10.6a | 60.8 | 47.15a | 31.0 | 25.5 |
| 150 N | 15.1a | 11.1a | 48.0 | 40.36a | 28.3 | 31.5 |
| LSD (0.05) | 18.33b | 12.63 | 7.20 | 11.354 | NS | 15.87 |
| SE |
6.17 |
4.25 |
2.42 |
3.82 |
8.26 |
5.34 |
|
Treatment Interaction (CEM x N) | ||||||
| SRI0 N | - | - | - | - | - | - |
| SRI60 N | 32.8 | 17.08 | 116.7f | 105.8d | 28.3 | 16 |
| SRI 90 N | 33.7 | 25.83 | 89.6d | 85.0c | 37.2 | 28.6 |
| SRI120 N | 19.7 | 7.08 | 61.7bc | 55.1b | 31.5 | 17.8 |
| SRI150 N | 20.2 | 10.17 | 53.8b | 48.6 | 37.7 | 26.2 |
| CP0 N | - | - | - | - | - | - |
| CP60 N | 21.7 | 21.53 | 102.2e | 71.94c | 18.3 | 29.4 |
| CP 90 N | 15.2 | 21.85 | 68.9c | 55.46b | 22.5 | 38.1 |
| CP120 N | 19.7 | 14.03 | 60.0bc | 39.24ab | 30.4 | 33.3 |
| CP150 N | 10.0 | 12.0 | 42.2a | 32.17a | 18.8 | 36.7 |
| LSD (0.05) | NS | NS | 10.18 | 16.057 | NS | NS |
| SE | 8.72 | 6.012 | 3.43 | 5.404 | 11.67 | 7.55 |
Mean values followed by different letters denote significant (P < 0.05) difference between treatments by DMRT.
NS: not significant.