Spatial and temporal characterization of water and solute distribution patterns

Detalhes bibliográficos
Autor(a) principal: Souza,Claudinei Fonseca
Data de Publicação: 2010
Outros Autores: Folegatti,Marcos Vinícius
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000100002
Resumo: The use of drip irrigation and marginal water is growing rapidly in some areas, highlighting the need to develop sound fertigation practices that combine environmental and crop production concerns. In this study the spatial and temporal water and solute distribution patterns are characterized to underpin fertirrigation design and management systems. Time domain reflectometry (TDR) probes were used to monitor the distributions of potassium nitrate (KNO3) and water from drippers discharging at a constant flow rate of 4 L h-1 in soil-filled containers. In the interactions between the different profiles, a gradient distribution of the solution in the soil was observed, with greater storage of solution close to the dripper, which decreased gradually as it approached the wetting front. To reduce leaching of fertigated ions, the frequent application of small amounts of solution during irrigation is recommended.
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spelling Spatial and temporal characterization of water and solute distribution patternsTDRdrip irrigationwetted soil volumeThe use of drip irrigation and marginal water is growing rapidly in some areas, highlighting the need to develop sound fertigation practices that combine environmental and crop production concerns. In this study the spatial and temporal water and solute distribution patterns are characterized to underpin fertirrigation design and management systems. Time domain reflectometry (TDR) probes were used to monitor the distributions of potassium nitrate (KNO3) and water from drippers discharging at a constant flow rate of 4 L h-1 in soil-filled containers. In the interactions between the different profiles, a gradient distribution of the solution in the soil was observed, with greater storage of solution close to the dripper, which decreased gradually as it approached the wetting front. To reduce leaching of fertigated ions, the frequent application of small amounts of solution during irrigation is recommended.Escola Superior de Agricultura "Luiz de Queiroz"2010-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000100002Scientia Agricola v.67 n.1 2010reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162010000100002info:eu-repo/semantics/openAccessSouza,Claudinei FonsecaFolegatti,Marcos Viníciuseng2010-03-16T00:00:00Zoai:scielo:S0103-90162010000100002Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2010-03-16T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Spatial and temporal characterization of water and solute distribution patterns
title Spatial and temporal characterization of water and solute distribution patterns
spellingShingle Spatial and temporal characterization of water and solute distribution patterns
Souza,Claudinei Fonseca
TDR
drip irrigation
wetted soil volume
title_short Spatial and temporal characterization of water and solute distribution patterns
title_full Spatial and temporal characterization of water and solute distribution patterns
title_fullStr Spatial and temporal characterization of water and solute distribution patterns
title_full_unstemmed Spatial and temporal characterization of water and solute distribution patterns
title_sort Spatial and temporal characterization of water and solute distribution patterns
author Souza,Claudinei Fonseca
author_facet Souza,Claudinei Fonseca
Folegatti,Marcos Vinícius
author_role author
author2 Folegatti,Marcos Vinícius
author2_role author
dc.contributor.author.fl_str_mv Souza,Claudinei Fonseca
Folegatti,Marcos Vinícius
dc.subject.por.fl_str_mv TDR
drip irrigation
wetted soil volume
topic TDR
drip irrigation
wetted soil volume
description The use of drip irrigation and marginal water is growing rapidly in some areas, highlighting the need to develop sound fertigation practices that combine environmental and crop production concerns. In this study the spatial and temporal water and solute distribution patterns are characterized to underpin fertirrigation design and management systems. Time domain reflectometry (TDR) probes were used to monitor the distributions of potassium nitrate (KNO3) and water from drippers discharging at a constant flow rate of 4 L h-1 in soil-filled containers. In the interactions between the different profiles, a gradient distribution of the solution in the soil was observed, with greater storage of solution close to the dripper, which decreased gradually as it approached the wetting front. To reduce leaching of fertigated ions, the frequent application of small amounts of solution during irrigation is recommended.
publishDate 2010
dc.date.none.fl_str_mv 2010-02-01
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=S0103-90162010000100002
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000100002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90162010000100002
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 Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.67 n.1 2010
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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