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Reducing Greenhouse Gas Emissions from Livestock and Soils |
The study was conducted at the experimental farm of Nong Lam University of Ho Chi Minh City from October 2010 to May 2011. Green mustard was grown on an acid or fertile soil amended with 0, 2, 4 or 6% biochar, with or without biodigester effluent. There were a total of 16 treatments with 4 repetitions arranged in a completely randomized block design.
Plant height and biomass yield (stems, leaves, roots) increased with increasing the level of biochar. The yield of the green mustard increased from 6 tonnes/ha on the unamended soils to 16.6 tonnes/ha with 6% biochar and effluent. There were improvements in pH, structure and minerals in the soil after addition of biochar and effluent.
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