Biochar is charred organic matter intended for use as a soil amendment. Biochar is produced by a thermochemical decomposition process called pyrolysis, which consists of heating biomass at a high temperature (» 400-8000 °C) in a limited oxygen environment. Biochar can be an important tool to increase food security and cropland diversity in areas with severely depleted soils, scarce organic resources, and inadequate water and chemical fertilizer supplies. Biochar also improves water quality and quantity by increasing soil retention of nutrients and agrochemicals for plant and crop utilization. Biochar helps to reclaim degraded soils. The water retention capacity of the biochar compost makes it ideal for conservation and the use of the scarce water. Biochar helps to prevent fertilizer runoff and leaching, allowing the use of less fertilizer and diminishing agricultural pollution to the surrounding environment.
P. Christy Nirmala Mary*
Dept. of Soils and Environment, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai, Tamil Nadu (625 104), India
R. Murugaragavan
R. Shanmugasundaram
S. Karpagam
J. Ramachandran
Dept. of Agricultural Engineering, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai, Tamil Nadu (625 104), India
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Murugaragavan Ramasamy, Saravanakumar Subbaiya and Rakesh Subramanian Srirangarayan, 2020. Biochar from crop residues and its impact on soil quality and carbon sequestration. LAP LAMBERT Academic Publishing, Mauritius. Pp:1-80.