African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6578

Full Length Research Paper

Potential hydrogen ion of Quartzarenic Neosol with joint application of lime and gypsum

Vitor Marques Vidal
  • Vitor Marques Vidal
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO, Brazil
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Carlos Ribeiro Rodrigues
  • Carlos Ribeiro Rodrigues
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO, Brazil
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Suzete Fernandes Lima
  • Suzete Fernandes Lima
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO, Brazil
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Andréia Mendes da Costa
  • Andréia Mendes da Costa
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO, Brazil
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Tatiana Michlovská Rodrigues
  • Tatiana Michlovská Rodrigues
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO, Brazil
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Fernando Nobre Cunha
  • Fernando Nobre Cunha
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO, Brazil
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Marconi Batista Teixeira
  • Marconi Batista Teixeira
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO, Brazil
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Cicero Teixeira Silva Costa
  • Cicero Teixeira Silva Costa
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO, Brazil
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Wilker Alves Morais
  • Wilker Alves Morais
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO, Brazil
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Eduardo Sousa Cunha
  • Eduardo Sousa Cunha
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO, Brazil
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Giovani Santos Moraes
  • Giovani Santos Moraes
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO, Brazil
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Gustavo da Silva Vieira
  • Gustavo da Silva Vieira
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO, Brazil
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Igor Olacir Fernandes Silva
  • Igor Olacir Fernandes Silva
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO, Brazil
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  •  Received: 05 October 2016
  •  Accepted: 08 November 2016
  •  Published: 20 April 2017

Abstract

The objective of the study is to investigate the interaction of lime and gypsum during incubation of soil samples in response to pH and also check the possibility of using more than one treatment for a single model by model identity method. The analysis of the potential hydrogen ion (pH) was performed in the Laboratory of Agricultural Chemistry, Federal Institute Goiano, Campus Rio Verde - GO, Brazil. The soil used is classified as Quartzarenic Neosol loam sandy and its corresponding soil taxonomy is Quartzipsamment. The experiment was  completely randomized  with four replications in a factorial 5 × 3 design, five doses of lime (CaCO3) - DL (0, 1, 2, 3 and 4 t ha-1) and three doses of gypsum (CaSO4) - DG ( 0, 0.7 and 5 t ha-1). The sources of CaCO3 and CaSO4, dolomitic lime and gypsum were used, respectively. Incubation was done in plastic containers with 20 ml of soil, and pH analysis was done every two days for 10 days. In general, it was frequently observed that reducing the pH of the reaction in the soil was attributed to higher DG applied together with CaCO3. Due to the difference in all models tested by identity models, it is explained that the range of CaSO4 doses and incubation periods promoted major change in the model either by interception, angulation or both. The reduction of pH in the soil is attributed to higher rates of gypsum used together with lime.

 

Key words: Active acidity, identity models, incubation period.