Nitrogen availability, water-filled pore space, and N 2 O-N fluxes after biochar application and nitrogen fertilization

Authors

  • Marcia Thais De Melo Carvalho Embrapa Arroz e Feijão, Rodovia GO-462, Km 12, Fazenda Capivara, Zona Rural, Caixa Postal 179, CEP 75375-000 Santo Antônio de Goiás, GO.
  • Beata Emoke Madari Embrapa Arroz e Feijão, Rodovia GO-462, Km 12, Fazenda Capivara, Zona Rural, Caixa Postal 179, CEP 75375-000 Santo Antônio de Goiás, GO.
  • Lammert Bastiaans Wageningen University, Centre for Crop Systems Analysis, Postal Box 430, 6700 AK Wageningen.
  • Pepijn Adrianus Johannes van Oort Africa Rice Benin Station, 01 B.P. 2031, Cotonou.
  • Wesley Gabriel de Oliveira Leal Embrapa Arroz e Feijão, Rodovia GO-462, Km 12, Fazenda Capivara, Zona Rural, Caixa Postal 179, CEP 75375-000 Santo Antônio de Goiás, GO.
  • Diego Mendes de Souza Embrapa Arroz e Feijão, Rodovia GO-462, Km 12, Fazenda Capivara, Zona Rural, Caixa Postal 179, CEP 75375-000 Santo Antônio de Goiás, GO.
  • Roberto Carlos Gomes dos Santos Embrapa Arroz e Feijão, Rodovia GO-462, Km 12, Fazenda Capivara, Zona Rural, Caixa Postal 179, CEP 75375-000 Santo Antônio de Goiás, GO.
  • Iva Matsushigue Embrapa Arroz e Feijão, Rodovia GO-462, Km 12, Fazenda Capivara, Zona Rural, Caixa Postal 179, CEP 75375-000 Santo Antônio de Goiás, GO.
  • Aline de Holanda Nunes Maia Embrapa Meio Ambiente, Rodovia SP-340, Km 127,5, Tanquinho Velho, Caixa Postal 69, CEP 13820-000 Jaguariúna, SP.
  • Alexandre Bryan Heinemann Embrapa Arroz e Feijão, Rodovia GO-462, Km 12, Fazenda Capivara, Zona Rural, Caixa Postal 179, CEP 75375-000 Santo Antônio de Goiás, GO.
  • Holger Meinke University of Tasmania, Tasmanian Institute of Agriculture, Private Bag 98, Hobart TAS 7001, Tasmania.

DOI:

https://doi.org/10.1590/S1678-3921.pab2016.v51.22508

Keywords:

cropping systems, gas fluxes, greenhouse gases, nitrate and ammonium, soil amendment, soil porosity

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) andafter 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.

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Published

2016-10-17

How to Cite

Carvalho, M. T. D. M., Madari, B. E., Bastiaans, L., van Oort, P. A. J., Leal, W. G. de O., Souza, D. M. de, … Meinke, H. (2016). Nitrogen availability, water-filled pore space, and N 2 O-N fluxes after biochar application and nitrogen fertilization. Pesquisa Agropecuaria Brasileira, 51(9), 1203–1212. https://doi.org/10.1590/S1678-3921.pab2016.v51.22508

Issue

v.51, n.9, set. 2016: Número Temático O solo como fator de integração entre os componentes ambientais e a produção agropecuária

Section

SOLO E AMBIENTE (TEMÁTICO)