Table 9.
Root characteristics as affected by crop establishment methods and nitrogen levels.
| Treatment | Fresh weight hill −1(g) | Length hill−1 (cm) | Volume hill−1 (ml) | Dry weight hill−1 (g) |
|---|---|---|---|---|
|
Crop management practices (CMP) | ||||
| SRI | 36.2 | 12.6 | 33.8 | 10.4 |
| CF | 29.2 | 11.1 | 27.5 | 6.7 |
| LSD (0.05) | 6.74 | 0.726 | 5.31 | 1.9 |
| F Pr. | 0.043 | <.001 | 0.022 | <.001 |
| SE |
2.3 |
0.248 |
1.81 |
0.648 |
|
Nitrogen levels (N) | ||||
| ABC | 22.7 | 11.5 | 21.6 | 7.2a |
| 0 N | 34.7 | 12.3 | 31.7 | 6.1a |
| 60 N | 33.0 | 11.2 | 33.0 | 7.9a |
| 90 N | 35.5 | 12.4 | 31.2 | 9.5a |
| 120 N | 33.4 | 11.3 | 31.2 | 7.8a |
| 150 N | 36.9 | 12.4 | 35.2 | 13.0b |
| LSD (0.05) | NS | NS | NS | 3.291 |
| F Pr. | 0.193 | 0.174 | 0.086 | 0.004 |
| SE |
3.98 |
0.429 |
3.14 |
1.122 |
|
Interaction (CMP x N) | ||||
| SRIABC | 27.8 | 11.8 | 22.8 | 10.4 |
| SRI0 N | 47.2 | 13.2 | 37.3 | 7.3 |
| SRI60 N | 38.8 | 11.9 | 38.7 | 8.8 |
| SRI 90 N | 31.6 | 13.9 | 35.0 | 11.9 |
| SRI120 N | 32.2 | 11.4 | 32.3 | 9.0 |
| SRI150 N | 39.6 | 13.2 | 36.7 | 15.2 |
| CPABC | 17.7 | 11.1 | 20.3 | 4.0 |
| CP0 N | 22.2 | 11.3 | 26.0 | 4.8 |
| CP60 N | 27.2 | 10.5 | 27.3 | 7.1 |
| CP 90 N | 39.5 | 10.9 | 27.3 | 7.1 |
| CP120 N | 34.4 | 11.2 | 30.1 | 6.5 |
| CP150 N | 34.2 | 11.6 | 33.7 | 10.8 |
| LSD (0.05) | NS | NS | NS | NS |
| F Pr. | 0.102 | 0.285 | 0.785 | 0.679 |
| SE | 5.63 | 0.606 | 4.43 | 1.587 |
Mean values followed by different letters denote significant (P < 0.05) difference between treatments by DMRT; NS: not significant.