Table 4.
Effect of different slow-release N fertilizers and N increments on cotton quality attributes under arid environment
| Treatments | Fiber length (cm) | Fiber strength (cm) | Ginning out turn (%) | Fiber index (g) | Seed index (g) |
|---|---|---|---|---|---|
| N100=160 kg ha-1 | 27.4 A | 27.0 A | 42.4 A | 5.62 A | 7.61 A |
| N75=120 kg ha-1 | 26.8 B | 26.4 B | 41.8 B | 5.36 B | 7.44 B |
| N50=80 kg ha-1 | 25.9 C | 25.5 C | 40.8 C | 4.97 C | 7.17 C |
| SRF | NS | NS | NS | NS | NS |
| NI | ** | ** | ** | ** | ** |
| SRF × NI | NS | NS | NS | NS | NS |
N100, 100% of recommended N; N75, 75% of recommended N; N50, 50% of recommended N; SRF, slow-release N fertilizers; NI, N increments; **, significant at p≤0.01; NS, nonsignificant at p≤0.05