Table 3 TiO 2 (P25) – Nitrogen transformation: nitrate content and nitrogen transformation rate
From: Influence of application techniques on the ecotoxicological effects of nanomaterials in soil
Test concentration [mg/kg]1 | Mean nitrate concentration ± SD2[mg/kg]1 | Mean nitrate concentration ± SD2[mg/kg]1 | Nitrogen transformation rate ± SD2[mg/(kg * 28 d)]1 |
|---|---|---|---|
Day 0 | Day 28 | Â | |
Control | 27.3 ± 1.1 | 32.6 ± 3.4 | 5.4 ± 2.7 |
Application via powder | |||
9.3 | 27.2 ± 2.8 | 35.9 ± 2.9 | 9.6 ± 2.7 |
21 | 24.7 ± 1.7* | 35.8 ± 2.0 | 11.1 ± 1.5* |
45 | 21.7 ± 2.6* | 36.8 ± 4.0 | 15.1 ± 4.3* |
100 | 21.5 ± 3.4* | 39.3 ± 2.5* | 17.8 ± 5.7* |
Application via dispersion | |||
9.3 | 27.8 ± 2.8 | 36.2 ± 4.9 | 8.3 ± 2.3 |
21 | 26.0 ± 4.1 | 34.1 ± 1.3 | 8.1 ± 3.9 |