Biochar and soil nitrous oxide emissions

Autores

  • Carlos Francisco Brazão Vieira Alho Universidade Federal Rural do Rio de Janeiro
  • Abmael da Silva Cardoso Universidade Federal Rural do Rio de Janeiro
  • Bruno José Rodrigues Alves Embrapa Agrobiologia
  • Etelvino Henrique Novotny Embrapa Solos

DOI:

https://doi.org/10.1590/S1678-3921.pab2012.v47.10030

Palavras-chave:

resíduos lignocelulósicos, gases de efeito estufa, pirólise

Resumo

The objective of this work was to evaluate the effect of biochar application on soil nitrous oxide emissions. The experiment was carried out in pots under greenhouse conditions. Four levels of ground commercial charcoal of 2 mm (biochar) were evaluated in a sandy Albaqualf (90% of sand): 0, 3, 6, and Mg ha-1. All treatments received 100 kg ha-1 of N as urea. A cubic effect of biochar levels was observed on the N 2O. Biochar doses above 5 Mg ha-1 started to mitigate the emissions in the evaluated soil. However, lower doses promote the emissions.

Biografia do Autor

Carlos Francisco Brazão Vieira Alho, Universidade Federal Rural do Rio de Janeiro

Abmael da Silva Cardoso, Universidade Federal Rural do Rio de Janeiro

Bruno José Rodrigues Alves, Embrapa Agrobiologia

Etelvino Henrique Novotny, Embrapa Solos

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Publicado

2012-06-15

Como Citar

Alho, C. F. B. V., Cardoso, A. da S., Alves, B. J. R., & Novotny, E. H. (2012). Biochar and soil nitrous oxide emissions. Pesquisa Agropecuária Brasileira, 47(5), 722–725. https://doi.org/10.1590/S1678-3921.pab2012.v47.10030

Edição

v.47, n.5, maio 2012: 3rd International Biochar Conference

Seção

NOTAS CIENTÍFICAS