78-3 Reduction of Greenhouse Emissions through Integration Between Brachiaria and Leguminous in Brazilian Beef Cattle Production.

Poster Number 312

See more from this Division: ASA Section: Climatology & Modeling
See more from this Session: Experimental and Modeling Approaches for Climate Change Impacts, Mitigation and Adaptation in Agriculture: II
Monday, November 3, 2014
Long Beach Convention Center, Exhibit Hall ABC
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Abmael da Silva Cardoso1, Robert Michael Boddey2, Fernando de Oliveira Alari3, Bruno Jose Rodrigues Alves2 and Ana Claudia Ruggieri4, (1)Department of Animal Science, FCAV, UNESP-Jaboticabal, Jaboticabal, SÃO PAULO, BRAZIL
(2)Embrapa Agrobiologia, Seropedica, Brazil
(3)Department of Animal Science, FCAV, UNESP-Jaboticabal, Jaboticabal, Brazil
(4)So Paulo State University, Jaboticabal, Brazil
Brazil adopted biological nitrogen fixation (BNF) as strategy of reduction of greenhouse gas (GHG) emissions. This study aimed to compare two system of beef cattle production in Brachiaria grassland: conventional and integrated with BNF leguminous. We calculated the carbon footprint of both system based in characteristics animal average of Brazil and the GHG emissions using Intergovernmental Panel of Climatic Change (IPCC). The carbon footprint decreased of 40.7 to 37.7 kg CO2eq kg-1 carcass that means a reduction of 8%. When we analyzed each gas N2O contributed with 40% of carbon footprint reductions, enteric CH4 with 20% and the rest due other aspects that had resulted in more meat production. The total N2O emissions decrease due substitution of nitrogen fertilizer by BNF. Already CH4 because BNF forages is rich in protein can contribute in better grassland use by animal. However there are no difference between both system considering emissions per area 1998.8 and 2023.1 kg CO2eq ha-1.  One of contribution of BNF adoption is use less land for the same meat production. This remnant area could be used for reforestation or with other crop. The adoption of this technology could result in a considerable reduction of GHG emissions especially in Brazil that has 200 Mha and can use part of this area for carbon sequestration through reforestation.
See more from this Division: ASA Section: Climatology & Modeling
See more from this Session: Experimental and Modeling Approaches for Climate Change Impacts, Mitigation and Adaptation in Agriculture: II