Nitrogen availability, water-filled pore space, and N2O-N fluxes after biochar application and nitrogen fertilization

Márcia Thaís De Melo Carvalho, Beáta Emoke Madari, Lammert Bastiaans, Pepijn Adrianus Johannes Van Oort, Wesley Gabriel De Oliveira Leal, Diego Mendes De Souza, Roberto Carlos Dos Santos, Iva Matsushige, Aline De Holanda Nunes Maia, Alexandre Bryan Heinemann, Holger Meinke

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)

Abstract

The objective of this work was to investigate the impact of the application of wood biochar, combined with N fertilizations, on N2O-N fluxes, nitrogen availability, and water-filled pore space (WFPS) of a clayey Oxisol under rice (wet season) and common bean (dry season) succession. Manual static chambers were used to quantify N2O-N fluxes from soil immediately after a single application of wood biochar (32 Mg ha-1) and after four crop seasons with N applications (90 kg ha-1 N). Soil ammonium (N-NH4+) and nitrate (N-NO3-)
availability, as well as WFPS, was measured together with N2O-N fluxes. There was no interaction between biochar and N fertilization regarding N2O-N fluxes in any of the four seasons monitored, although these fluxes were clearly enhanced by N applications. At 1.5 and 2.5 years after biochar application, the WFPS decreased. In addition, in the seasons characterized by low WFPS, N2O-N fluxes and soil N-NO3- and N-NH4+ availability were enhanced after N applications. Long-term experiments in the field are important to quantify the impacts of biochar on N2O-N fluxes and to determine the dynamics of these fluxes on soil-related variables.
Original languageEnglish
Pages (from-to)1203-1212
JournalPesquisa Agropecuaria Brasileira
Volume51
Issue number9
DOIs
Publication statusPublished - 2016

Fingerprint Dive into the research topics of 'Nitrogen availability, water-filled pore space, and N2O-N fluxes after biochar application and nitrogen fertilization'. Together they form a unique fingerprint.

  • Cite this

    Carvalho, M. T. D. M., Madari, B. E., Bastiaans, L., Oort, P. A. J. V., Leal, W. G. D. O., Souza, D. M. D., Santos, R. C. D., Matsushige, I., Maia, A. D. H. N., Heinemann, A. B., & Meinke, H. (2016). Nitrogen availability, water-filled pore space, and N2O-N fluxes after biochar application and nitrogen fertilization. Pesquisa Agropecuaria Brasileira, 51(9), 1203-1212. https://doi.org/10.1590/s0100-204x2016000900020