Review Article
The Role of Biochar in Ameliorating Disturbed Soils and Sequestering Soil Carbon in Tropical Agricultural Production Systems
Table 1
Effects of biochar sourced from different biomass on soil C.
| Country | Soil type | Treatment | Application rate | Changes in soil C* | Source | Remark |
| Philippines | Gleysols | Rice husk biochar | 41.3 t ha−1 | 12.9 g kg−1 | [54] | After 3 years | Philippines | Nitosols | Rice husk biochar | 41.3 t ha−1 | 12.4 g kg−1 | [54] | After 3 years | Thailand | Acrisols | Rice husk biochar | 41.3 t ha−1 | 0.51 g kg−1 | [54] | After 3 years | Ethiopia | Nitosols | Maize stalk biochar | 5 t ha−1 | 0.71% | [55] | Incubation trial | Ethiopia | Nitosols | Maize stalk | 10 t ha−1 | 0.77% | [55] | Incubation trial | South Africa | Acidic sandy soils | Pinewood sawmill biochar | 10 t ha−1 | 8.11% | [56] | Pot trial | India | Vertic ustropept | Prosopis biochar | 5% of the incubated soil | 4.5 g kg−1 | [57] | After 90 days of incubation | Kenya | Ferrasol | Acacia tree biochar | 50 t ha−1 | 0.7% | [58] | Greenhouse experiment |
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Changes in soil C refers to the increase in C due to addition of biochar against the control plots.
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