Miguel Angel Uribe-Opazo

Prof. Dr. Miguel Angel Uribe-Opazo

CCET, Western Paraná State University, Cascavel, Paraná, Brazil
orcid

Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 June 2018 in Chemometrics and Intelligent Laboratory Systems
Verified
Journal Article
Open access
FGFabiana Garcia-Papani
Fabiana Garcia-Papani
Victor LeivaVictor Leiva
Victor Leiva
Miguel Angel Uribe-OpazoMiguel Angel Uribe-Opazo
Miguel Angel Uribe-Opazo
RARobert G. Aykroyd
Robert G. Aykroyd

2 February 2016 in Stochastic Environmental Research and Risk Assessment
Verified
Journal Article
Closed access
PDF file
FGFabiana Garcia-Papani
Fabiana Garcia-Papani
Miguel Angel Uribe-OpazoMiguel Angel Uribe-Opazo
Miguel Angel Uribe-Opazo
Victor LeivaVictor Leiva
Victor Leiva
RARobert Aykroyd
Robert Aykroyd

22 October 2014 in TEST
Verified
Journal Article
Closed access
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Fernanda De BastianiFernanda De Bastiani
Fernanda De Bastiani
ACAudrey Helen Mariz de Aquino Cysneiros
Audrey Helen Mariz de Aquino Cysneiros
Miguel Angel Uribe-OpazoMiguel Angel Uribe-Opazo
Miguel Angel Uribe-Opazo
MGManuel Galea
Manuel Galea

1 October 2013 in Engenharia Agrícola
Verified
Journal Article
Open access
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CBClaudio Leones Bazzi
Claudio Leones Bazzi
ESEduardo Souza
Eduardo Souza
Miguel Angel Uribe-OpazoMiguel Angel Uribe-Opazo
Miguel Angel Uribe-Opazo
LNLúcia H. P. Nóbrega
Lúcia H. P. Nóbrega
DRDavi Rocha
Davi Rocha
Several equipments and methodologies have been developed to make available precision agriculture, especially considering the high cost of its implantation and sampling. An interesting possibility is to define management zones aim at dividing producing areas in smaller management zones that could be treated differently, serving as a source of recommendation and analysis. Thus, this trial used physical and chemical properties of soil and yield aiming at the generation of management zones in order to identify whether they can be used as recommendation and analysis. Management zones were generated by the Fuzzy C-Means algorithm and their evaluation was performed by calculating the reduction of variance and performing means tests. The division of the area into two management zones was considered appropriate for the present distinct averages of most soil properties and yield. The used methodology allowed the generation of management zones that can serve as source of recommendation and soil analysis; despite the relative efficiency has shown a reduced variance for all attributes in divisions in the three sub-regions, the ANOVA did not show significative differences among the management zones.

1 June 2013 in Engenharia Agrícola
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Journal Article
Open access
PDF file
GDGustavo H. Dalposso
Gustavo H. Dalposso
Miguel Angel Uribe-OpazoMiguel Angel Uribe-Opazo
Miguel Angel Uribe-Opazo
EMErivelto Mercante
Erivelto Mercante
RLRubens Lamparelli
Rubens Lamparelli
This research aims at studying spatial autocorrelation of Landsat/TM based on normalized difference vegetation index (NDVI) and green vegetation index (GVI) of soybean of the western region of the State of Paraná. The images were collected during the 2004/2005 crop season. The data were grouped into five vegetation index classes of equal amplitude, to create a temporal map of soybean within the crop cycle. Moran I and Local Indicators of Spatial Autocorrelation (LISA) indices were applied to study the spatial correlation at the global and local levels, respectively. According to these indices, it was possible to understand the municipality-based profiles of tillage as well as to identify different sowing periods, providing important information to producers who use soybean yield data in their planning.

1 February 2010 in Engenharia Agrícola
Verified
Journal Article
Open access
PDF file
SSSilvio C. Sampaio
Silvio C. Sampaio
FCFrancielle A. Caovilla
Francielle A. Caovilla
Miguel Angel Uribe-OpazoMiguel Angel Uribe-Opazo
Miguel Angel Uribe-Opazo
LNLúcia H. P. Nóbrega
Lúcia H. P. Nóbrega
MSMorgana Suszek
Morgana Suszek
ASAdriana Smanhotto
Adriana Smanhotto
Neste trabalho, foi avaliada a dinâmica da lixiviação de íons em colunas de solo deformado e indeformado. O solo utilizado era proveniente de área fertirrigada com água residuária da suinocultura diluída em 0%, 25%, 50%, 75% e cultivada com soja. Foram construídas curvas de eluição para nitrato, potássio e condutividade elétrica. De acordo com os resultados obtidos nas colunas de solo deformado, e proporcionalmente aos tratamentos, o nitrato apresentou maior mobilidade, seguido pela concentração de sais totais e do potássio. A metodologia de colunas de solo indeformado não se mostrou adequada, devido, possivelmente, à compactação do solo durante a amostragem e à dificuldade no bloqueio de caminhos preferenciais ao longo de toda a coluna.