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Effect of Mixed Wood Biochar
on Physico-chemical Properties of Sandy Soil,
Haryana Region, India
Varinder
Kaur and Praveen Sharma*
Department of
Environmental Science and Engineering,
Guru Jambheshwar
University of Science & Technology, Hisar, Haryana, India
*Email-ps.enbt@gmail.com
Biochar;
Soil health;
Poly-aromatic hydrocarbons;
Crop yield;
Soil fertility
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Abstract
Biochar is a carbon-rich source which significantly affects the soil
properties. In this study, we investigated the effect of different
concentrations of mixed wood biochar synthesized from Sal, Cheed and Teak with
poly-aromatic hydrocarbons (50 mg/kg naphthalene and 100 mg/kg
phenanthrene) and observed its effect on various physico-chemical
parameters of sandy soil. The significant results were found with
increasing biochar application rate. Soil amended with1%, 5% and 10% biochar
effectively help in the reduction of bulk density 8.18%, 12.58% and17.61%
respectively, as compared to control. Soil porosity (40 to 50%) and water
holding capacity (113.2 to 219.6%) was also increased with biochar
concentration. The non-significant (P≤0.05) results were observed in case
of increase in pH and EC values in biochar amended and non-biochar amended
soil samples. CEC and SOC value were significantly increased from 24.13 to
32.94% and 37.68 to 50.82% respectively, in 10% biochar-amended soil as
compared to biochar non-amended soil samples. However, biochar helps in conditioning of
soil by increasing the surface negative charge, nutrient retention
capacity, soil porosity, organic carbon content and cation exchange
capacity. It could be safely applied in agriculture for improvement of soil
health and crop yield.
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