The Potential Roles of Biochar in Restoring Heavy-Metal-Polluted Tropical Soils and Plant Growth
| Autor: | Kadir, Salam, Abdul |
|---|---|
| Rok vydání: | 2023 |
| Zdroj: | Biochar-Productive Technologies, Properties and Applications ISBN: 9781803562513 Biochar-Productive Technologies, Properties and Applications |
| DOI: | 10.5772/intechopen.105791 |
| Popis: | Biochar shows interesting and environmentally useful properties, among which is its relatively high cation exchange capacity (CEC). High CEC may lower the easily plant-available heavy metals in soils due to the increase in the soil adsorption capacity resulted from biochar application. Quite a lot of current researches reveal that the extracted heavy metals in tropical soils particularly Cu and Zn were significantly lowered in the presence of biochar at 5−10 Mg ha−1. Heavy metal–contaminated tropical soils planted with corn plants (Zea mays L.) show significant decreases in Cu and Zn concentrations at moderate- and high-level addition of heavy metal–containing waste. The growth and dry masses of roots and shoot of corn plant improved immediately as a result of biochar amendment. Planting heavy metal–polluted soils treated with biochar with thorny amaranth (Amaranthus spinosus) also demonstrated a similar phenomenon. |
| Databáze: | OpenAIRE |
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