Research Article
Influence of Rice Husk Biochar and Its Application Methods on Silicon Dynamics and Rice Yield in Sandy-Loam Soil
Table 1
Physico-chemical properties of the soil and biochar used in the experiment.
| Properties | Soil | RH biochar |
| Soil texture (%) | Clay | 19 | — | Sand | 75 | — | Silt | 6 | — | pH (H2O) | 6.20 ± 0.06 | 10.60 ± 0.04 | EC (dS m−1) | 0.08 ± 0.03 | 0.14 ± 0.14 | Total C (g kg−1) | 29.78 ± 0.21 | 498.91 ± 2.69 | Total N (g kg−1) | 2.49 ± 0.16 | 4.71 ± 0.11 | C/N Ratio | 11.96 ± 0.23 | 106.15 ± 2.40 | Available P (g kg−1) | 0.12 ± 0.01 | 0.11 ± 0.02 |
| Exchangeable/extractable base cations (cmol ckg−1) | | Ca | 10.22 ± 0.13 | 1.89 ± 0.04 | K | 4.02 ± 0.02 | 19.91 ± 1.16 | Mg | 0.26 ± 0.06 | 1.48 ± 0.06 | Na | 0.37 ± 0.07 | 0.98 ± 0.07 |
| Available Si (g kg −1) | Ac. buffer-extracted | 0.48 ± 0.12 | 0.15 ± 0.06 | CaCl2-extracted | 0.10 ± 0.01 | 1.92 ± 0.15 |
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(Reported values are means ± standard deviations).
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