Soil microbial biomass after two years of the consecutive application of composted tannery sludge - doi: 10.4025/actasciagron.v36i1.17160

Autores

  • Iuna Carmo Ribeiro Gonçalves Universidade Federal do Piauí Autor
  • Ademir Sérgio Ferreira de Araújo Universidade Federal do Piauí Autor
  • Luis Alfredo Pinheiro Leal Universidade Federal do Piauí Autor
  • Wanderley José de Melo Universidade Estadual Paulista “Júlio de Mesquita Filho" Autor

DOI:

https://doi.org/10.4025/actasciagron.v36i1.17160

Palavras-chave:

composting, industrial waste, soil microorganisms

Resumo

Because the agricultural use of tannery sludge may cause increased risks to soils, composting is recognized as one of the most suitable alternative for tannery sludge recycling. Experiments were conducted under field conditions to evaluate the effects of composted tannery sludge (CTS) on the soil microbial biomass and trace elements after two years of consecutive applications. The following five treatments were used: 0 (without CTS application), 5, 10, 20 and 40 ton ha-1 of CTS (dry basis). Soil samples were collected at 60 days after the CTS application at 0-20 cm depth. The CTS application promoted changes in the soil microbial biomass C (SMB-C) and N (SMB-N). In the first year, significant increases in the SMB-C and SMB-N were observed with the application of 10 ton ha-1. Furthermore, CTS application increased the Cr content in the soil after two years of application.

 

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Biografia do Autor

  • Iuna Carmo Ribeiro Gonçalves, Universidade Federal do Piauí
    Mestre em Agronomia.
  • Ademir Sérgio Ferreira de Araújo, Universidade Federal do Piauí
    Area: Microbiologia do Solo, Pesquisador do CNPq
  • Luis Alfredo Pinheiro Leal, Universidade Federal do Piauí
    Mestre em Agronomia.
  • Wanderley José de Melo, Universidade Estadual Paulista “Júlio de Mesquita Filho"
    Eng. Agr., Doutor. Pesquisador do CNPq.

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Publicado

2014-01-07

Edição

Seção

Microbiologia Agrícola

Como Citar

Gonçalves, I. C. R., Araújo, A. S. F. de, Leal, L. A. P., & Melo, W. J. de. (2014). Soil microbial biomass after two years of the consecutive application of composted tannery sludge - doi: 10.4025/actasciagron.v36i1.17160. Acta Scientiarum. Agronomy, 36(1), 35-41. https://doi.org/10.4025/actasciagron.v36i1.17160

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