Spatial variability of an Alfisol cultivated with sugarcane

Soil variability occurs due to natural and anthropogenic factors acting at various spatial and temporal scales. The purpose of this study was to evaluate the spatial variability as well as the relation of some chemical attributes using different statistical techniques. The study was conducted in the...

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Autores principales: Silva Cruz,Joedna, de Assis Júnior,Raimundo Nonato, Rocha Matias,Sammy Sidney, Camacho-Tamayo,Jesús Hernán
Lenguaje:English
Publicado: Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2011
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202011000100015
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spelling oai:scielo:S0718-162020110001000152011-08-18Spatial variability of an Alfisol cultivated with sugarcaneSilva Cruz,Joednade Assis Júnior,Raimundo NonatoRocha Matias,Sammy SidneyCamacho-Tamayo,Jesús Hernán Geostatistics principal components cluster analysis Soil variability occurs due to natural and anthropogenic factors acting at various spatial and temporal scales. The purpose of this study was to evaluate the spatial variability as well as the relation of some chemical attributes using different statistical techniques. The study was conducted in the municipality of Maracanaú (CE, Brazil) in the commercial area of sugar cane in a typic Hapludalf. Soils were sampled in a 100 x 100 m grid every 10 m and at a depth between 0 and 20 cm for determination of exchangeable acidity, pH (KCl), Ca, Na, K, Mg, P, N, sum of bases, cationic exchange capacity, base saturation and organic matter. Data were subjected to analysis of descriptive statistics, multivariate analysis and geostatistics. Attributes showed low and medium variability, except for pH that did not show spatial dependence. Different statistical tools helped to identify the soil spatial variability and to get a better understanding of relationships among different attributes. Techniques also allowed to better plan and control agricultural production, especially in carrying out site specific management of agricultural inputs.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.38 n.1 20112011-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202011000100015en10.4067/S0718-16202011000100015
institution Scielo Chile
collection Scielo Chile
language English
topic Geostatistics
principal components
cluster analysis
spellingShingle Geostatistics
principal components
cluster analysis
Silva Cruz,Joedna
de Assis Júnior,Raimundo Nonato
Rocha Matias,Sammy Sidney
Camacho-Tamayo,Jesús Hernán
Spatial variability of an Alfisol cultivated with sugarcane
description Soil variability occurs due to natural and anthropogenic factors acting at various spatial and temporal scales. The purpose of this study was to evaluate the spatial variability as well as the relation of some chemical attributes using different statistical techniques. The study was conducted in the municipality of Maracanaú (CE, Brazil) in the commercial area of sugar cane in a typic Hapludalf. Soils were sampled in a 100 x 100 m grid every 10 m and at a depth between 0 and 20 cm for determination of exchangeable acidity, pH (KCl), Ca, Na, K, Mg, P, N, sum of bases, cationic exchange capacity, base saturation and organic matter. Data were subjected to analysis of descriptive statistics, multivariate analysis and geostatistics. Attributes showed low and medium variability, except for pH that did not show spatial dependence. Different statistical tools helped to identify the soil spatial variability and to get a better understanding of relationships among different attributes. Techniques also allowed to better plan and control agricultural production, especially in carrying out site specific management of agricultural inputs.
author Silva Cruz,Joedna
de Assis Júnior,Raimundo Nonato
Rocha Matias,Sammy Sidney
Camacho-Tamayo,Jesús Hernán
author_facet Silva Cruz,Joedna
de Assis Júnior,Raimundo Nonato
Rocha Matias,Sammy Sidney
Camacho-Tamayo,Jesús Hernán
author_sort Silva Cruz,Joedna
title Spatial variability of an Alfisol cultivated with sugarcane
title_short Spatial variability of an Alfisol cultivated with sugarcane
title_full Spatial variability of an Alfisol cultivated with sugarcane
title_fullStr Spatial variability of an Alfisol cultivated with sugarcane
title_full_unstemmed Spatial variability of an Alfisol cultivated with sugarcane
title_sort spatial variability of an alfisol cultivated with sugarcane
publisher Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate 2011
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202011000100015
work_keys_str_mv AT silvacruzjoedna spatialvariabilityofanalfisolcultivatedwithsugarcane
AT deassisjuniorraimundononato spatialvariabilityofanalfisolcultivatedwithsugarcane
AT rochamatiassammysidney spatialvariabilityofanalfisolcultivatedwithsugarcane
AT camachotamayojesushernan spatialvariabilityofanalfisolcultivatedwithsugarcane
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