BENEFITS OF BIOCHAR TO MITIGATION OF CLIMATE CHANGE

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Biochar may sequester carbon in the soil for centuries or even millennium, it may provide nutrients as promoters of plant growth, it may reduce soil GHGs emissions and nitrate migration towards groundwater, it may improve the physical and chemical characteristics of soil, thereby supporting soil biology, and it may immobilize soil pollutants, thereby protecting plants from mobile contaminants.
Biochar, due to its aromatic structure and long mean residence time in the soil has the potential for long-term carbon sequestration in the soil. Biochar decomposition rate is slow in the soil, which indicates that it could be the possible answer to mitigation of elevated atmospheric CO2. Application of biochar along with chemical fertilizers increases the crop yield to the tune of 45--250%. Soil water retention properties, saturated HC and nutrients availability increased with the application of biochar. Biochar application reduced CO2 respiration, nitrous oxide and methane production, and decreased dissipation rate of herbicide in the soil.
Application of corn stover biochar @10 t/ha along with recommended dose of fertilizer (RDF) increased dry matter and crude protein yields as well as chlorophyll content and plant height (at 30 and 60 DAS ) as compared to CB and PJ biochars and FYM.
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