EFFECTIVE OF BIOCHAR PREPARED FROM RICE HUSK TO GREENHOUSE GAS EMISSIONS

Abstract

This study aims to evaluate the efficiency of biochar prepared from rice husks (O. Sativa L., OM5451) to greenhouse gas (CH₄ and N₂O) emissions. Rice husk biochar was produced by pyrolysis method (700^oC) by a kiln - VMF 165. The treatments were randomly assigned and 4 replicates for each treatment. This study showed that rice husk biochar at 20 tons ha^-1 reduced CH₄ and N₂O emissions were 15.99%, 48.47% better than of 10 tons ha^-1 and 5 tons ha^-1 were 13.01%, 5.58% and 37.70%, 33.00%, respectively. In conclusion, the addition of rice husk biochar into the paddy soil can reduce greenhouse gas emissions. The effectiveness of reducing total greenhouse gas emissions of the treatment with 20 tons ha^-1 was highest.