Physical attributes of Humic Cambisol subjected to nitrogen sources in an apple orchard

Authors

  • Daniela Schmitz UFSC
  • Arcângelo Loss UFSC
  • Cledimar Rogério Lourenzi UFSC
  • Vilmar Müller Júnior UFSC
  • Milton da Veiga
  • Gustavo Brunetto UFSM
  • Jucinei José Comin

DOI:

https://doi.org/10.14295/cs.v8i2.1757

Keywords:

bulk density, penetration resistance, geometric mean diameter, pelleted urea, pig deep-litter

Abstract

The application of nitrogen sources in soil under apple orchards can change the soil physical attributes and soil-plant relationship. The objective was to evaluate the physical attributes of Humic Cambisol (Inceptisol) in an apple orchard, under nitrogen sources in Urubici county, Santa Carina State, Brazil. The treatments were: control (without fertilization), common urea, pelleted urea and organic fertilizer (pig deep-litter), at rates of 33 kg N ha-1 yr-1. After two years of implementation of the N sources, soil undisturbed samples were collected at layers of 0.0-0.05, 0.05-0.10, 0.10-0.15 and 0.15-0.20 m depth, and these were evaluated the bulk density (BD); penetration resistance (PR); total porosity, macro, meso, and micropores; the geometric mean diameter of air-dried aggregates (GMDad) and water-stable aggregates (GMDws) and water content. The organic fertilizer increased the total porosity, microporosity, the water content and decreased BD, compared to other treatments, at the layer of 0.0-0.05 m depth. The organic fertilization and the common urea did not change the macroporosity and PR, but provided lower macroporosity, compared to the control, and RP in relation to pelleted urea. The N sources increased GMDws compared with the control in the topsoil.

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Author Biographies

Daniela Schmitz, UFSC

Mestre em Agroecossistemas da UFSC.

Arcângelo Loss, UFSC

Professor Adjunto, Centro de Ciências Agrárias, Departamento de Engenharia Rural, Universidade Federal de Santa Catarina, Florianópolis, SC, 88034-000.

Cledimar Rogério Lourenzi, UFSC

Professor Adjunto, Centro de Ciências Agrárias, Departamento de Engenharia Rural, Universidade Federal de Santa Catarina, Florianópolis, SC, 88034-000

Vilmar Müller Júnior, UFSC

Mestrando em Agroecossistemas da UFSC.

Milton da Veiga

Professor da UNOESC, Campos Novos, SC.

Gustavo Brunetto, UFSM

Professor Adjunto, UFSM, Santa Maria, RS.

Jucinei José Comin

Professor Titulat, Centro de Ciências Agrárias, Departamento de Engenharia Rural, Universidade Federal de Santa Catarina, Florianópolis, SC, 88034-000

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Published

2018-02-01

How to Cite

Schmitz, D., Loss, A., Lourenzi, C. R., Müller Júnior, V., Veiga, M. da, Brunetto, G., & Comin, J. J. (2018). Physical attributes of Humic Cambisol subjected to nitrogen sources in an apple orchard. Comunicata Scientiae, 8(2), 316–325. https://doi.org/10.14295/cs.v8i2.1757

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Section

Original Article