Spatial variability of soil fertility and its relation with cocoa yield

Detalhes bibliográficos
Autor(a) principal: Santos,Railton O. dos
Data de Publicação: 2017
Outros Autores: Franco,Laís B., Silva,Samuel A., Sodré,George A., Menezes,Agna A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000200088
Resumo: ABSTRACT The knowledge on the spatial variability of soil properties and crops is important for decision-making on agricultural management. The objective of this study was to evaluate the spatial variability of soil fertility and its relation with cocoa yield. The study was conducted over 14 months in an area cultivated with cocoa. A sampling grid was created to study soil chemical properties and cocoa yield (stratified in season, off-season and annual). The data were analyzed using descriptive and exploratory statistics, and geostatistics. The chemical attributes were classified using fuzzy logic to generate a soil fertility map, which was correlated with maps of crop yield. The soil of the area, except for the western region, showed possibilities ranging from medium to high for cocoa cultivation. Soil fertility showed positive spatial correlation with cocoa yield, and its effect was predominant only for the off-season and annual cocoa.
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spelling Spatial variability of soil fertility and its relation with cocoa yieldprecision agriculturecocoaspatial variabilityfuzzy logicABSTRACT The knowledge on the spatial variability of soil properties and crops is important for decision-making on agricultural management. The objective of this study was to evaluate the spatial variability of soil fertility and its relation with cocoa yield. The study was conducted over 14 months in an area cultivated with cocoa. A sampling grid was created to study soil chemical properties and cocoa yield (stratified in season, off-season and annual). The data were analyzed using descriptive and exploratory statistics, and geostatistics. The chemical attributes were classified using fuzzy logic to generate a soil fertility map, which was correlated with maps of crop yield. The soil of the area, except for the western region, showed possibilities ranging from medium to high for cocoa cultivation. Soil fertility showed positive spatial correlation with cocoa yield, and its effect was predominant only for the off-season and annual cocoa.Departamento de Engenharia Agrícola - UFCG2017-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000200088Revista Brasileira de Engenharia Agrícola e Ambiental v.21 n.2 2017reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCG10.1590/1807-1929/agriambi.v21n2p88-93info:eu-repo/semantics/openAccessSantos,Railton O. dosFranco,Laís B.Silva,Samuel A.Sodré,George A.Menezes,Agna A.eng2017-02-13T00:00:00Zoai:scielo:S1415-43662017000200088Revistahttp://www.scielo.br/rbeaaPUBhttps://old.scielo.br/oai/scielo-oai.php||agriambi@agriambi.com.br1807-19291415-4366opendoar:2017-02-13T00:00Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)false
dc.title.none.fl_str_mv Spatial variability of soil fertility and its relation with cocoa yield
title Spatial variability of soil fertility and its relation with cocoa yield
spellingShingle Spatial variability of soil fertility and its relation with cocoa yield
Santos,Railton O. dos
precision agriculture
cocoa
spatial variability
fuzzy logic
title_short Spatial variability of soil fertility and its relation with cocoa yield
title_full Spatial variability of soil fertility and its relation with cocoa yield
title_fullStr Spatial variability of soil fertility and its relation with cocoa yield
title_full_unstemmed Spatial variability of soil fertility and its relation with cocoa yield
title_sort Spatial variability of soil fertility and its relation with cocoa yield
author Santos,Railton O. dos
author_facet Santos,Railton O. dos
Franco,Laís B.
Silva,Samuel A.
Sodré,George A.
Menezes,Agna A.
author_role author
author2 Franco,Laís B.
Silva,Samuel A.
Sodré,George A.
Menezes,Agna A.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Santos,Railton O. dos
Franco,Laís B.
Silva,Samuel A.
Sodré,George A.
Menezes,Agna A.
dc.subject.por.fl_str_mv precision agriculture
cocoa
spatial variability
fuzzy logic
topic precision agriculture
cocoa
spatial variability
fuzzy logic
description ABSTRACT The knowledge on the spatial variability of soil properties and crops is important for decision-making on agricultural management. The objective of this study was to evaluate the spatial variability of soil fertility and its relation with cocoa yield. The study was conducted over 14 months in an area cultivated with cocoa. A sampling grid was created to study soil chemical properties and cocoa yield (stratified in season, off-season and annual). The data were analyzed using descriptive and exploratory statistics, and geostatistics. The chemical attributes were classified using fuzzy logic to generate a soil fertility map, which was correlated with maps of crop yield. The soil of the area, except for the western region, showed possibilities ranging from medium to high for cocoa cultivation. Soil fertility showed positive spatial correlation with cocoa yield, and its effect was predominant only for the off-season and annual cocoa.
publishDate 2017
dc.date.none.fl_str_mv 2017-02-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000200088
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000200088
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1807-1929/agriambi.v21n2p88-93
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Departamento de Engenharia Agrícola - UFCG
publisher.none.fl_str_mv Departamento de Engenharia Agrícola - UFCG
dc.source.none.fl_str_mv Revista Brasileira de Engenharia Agrícola e Ambiental v.21 n.2 2017
reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
instname:Universidade Federal de Campina Grande (UFCG)
instacron:UFCG
instname_str Universidade Federal de Campina Grande (UFCG)
instacron_str UFCG
institution UFCG
reponame_str Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
collection Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
repository.name.fl_str_mv Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)
repository.mail.fl_str_mv ||agriambi@agriambi.com.br
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