期刊
POLYCYCLIC AROMATIC COMPOUNDS
卷 41, 期 7, 页码 1406-1417出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10406638.2019.1678185
关键词
Amendment; biochar; naphthalene; phenanthrene; soil quality
资金
- Maulana Azad National Fellowship for Minority Students
- UGC-SAP
Biochar significantly influences soil properties, improving soil quality by reducing bulk density, increasing porosity, organic carbon content, and cation exchange capacity. It can be safely applied in agriculture to enhance soil health and crop yield.
Soil properties are significantly influenced by the addition of biochar. Biochar improves soil quality as it increases the soil alkalinity, surface negative charge, nutrient retention capacity, porosity, organic carbon content and cation exchange capacity (CEC). The present research based on pot study was carried out in October 2015 to April 2016 with Prosopis juliflora biochar. We investigated the effect of different concentrations of biochar (1%, 5% and 10%) and polyaromatic hydrocarbons (50?mg/kg naphthalene and 100?mg/kg phenanthrene) on various physico-chemical parameters of sandy soil. Biochar application significantly helps to reduce the soil bulk density by 8.40%, 13.95% and 17.61%, respectively, as compared to control. Similarly, percent soil space was effectively decreased with increased biochar application rate from 8.4% to 17%. Porosity and water holding capacity were significantly increased with biochar application rate (0% < 1% <5% <10%). The non-significant (p???0.05) results were observed in case of increase in pH and electrical conductivity values in biochar-amended and non-biochar amended soil samples. CEC and soil organic carbon values were significantly increased from 26.54 to 33.18% and 38.54 to 51.63%, respectively, in 10% biochar-amended soil as compared to biochar non-amended soil. However, biochar nourishes soil that could be safely applied in agriculture for improvement of soil health and crop yield.
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