Obstruction of drippers as a result of application of moisturized whitewash in irrigation water
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Engenharia Agrícola |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000500006 |
Resumo: | Plug dynamics of non compensate drip tubes were evaluated, by the precipitation of moisturized whitewash [Ca(OH)2], which is used in the fertigation for the bulb pH control of the trademarks Azud, Amanco, Naandan, Netafim, Petroisa, Queen Gil, with flow rate varying between 0.4 to 3.0 L h-1 usually used in the country. For this matter, increasing doses of Ca(OH)² were applied in the irrigation water, from 0.01 g L-1 to 1.84 g L-1. The flow rate of each drip tube was measured in intervals of time initially of 7 days, later of 15 days of system operation, totaling a time of 100 days of operation, corresponding to nine applications or 432 hours. The coefficient of variation (CV), and relative rate flow (Qr) were evaluated. The results pointed differences among the evaluated emitter regarding the occurrence of the clogging, and the models G2 and G5 presented the smallest levels of flow rate variation comparing to the models G6, G7 and G9. |
id |
SBEA-1_ad2e836a3338d7fd1f8d3f4de863de2e |
---|---|
oai_identifier_str |
oai:scielo:S0100-69162011000500006 |
network_acronym_str |
SBEA-1 |
network_name_str |
Engenharia Agrícola |
repository_id_str |
|
spelling |
Obstruction of drippers as a result of application of moisturized whitewash in irrigation waterdrip tubeclogging evaluationhydrated limePlug dynamics of non compensate drip tubes were evaluated, by the precipitation of moisturized whitewash [Ca(OH)2], which is used in the fertigation for the bulb pH control of the trademarks Azud, Amanco, Naandan, Netafim, Petroisa, Queen Gil, with flow rate varying between 0.4 to 3.0 L h-1 usually used in the country. For this matter, increasing doses of Ca(OH)² were applied in the irrigation water, from 0.01 g L-1 to 1.84 g L-1. The flow rate of each drip tube was measured in intervals of time initially of 7 days, later of 15 days of system operation, totaling a time of 100 days of operation, corresponding to nine applications or 432 hours. The coefficient of variation (CV), and relative rate flow (Qr) were evaluated. The results pointed differences among the evaluated emitter regarding the occurrence of the clogging, and the models G2 and G5 presented the smallest levels of flow rate variation comparing to the models G6, G7 and G9.Associação Brasileira de Engenharia Agrícola2011-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000500006Engenharia Agrícola v.31 n.5 2011reponame:Engenharia Agrícolainstname:Associação Brasileira de Engenharia Agrícola (SBEA)instacron:SBEA10.1590/S0100-69162011000500006info:eu-repo/semantics/openAccessBarboza Júnior,Cícero R. A.Lelis Neto,João A.Hartwig,Marcelo P.Barros,Allan C.Coelho,Rubens D.eng2011-11-17T00:00:00Zoai:scielo:S0100-69162011000500006Revistahttp://www.engenhariaagricola.org.br/ORGhttps://old.scielo.br/oai/scielo-oai.phprevistasbea@sbea.org.br||sbea@sbea.org.br1809-44300100-6916opendoar:2011-11-17T00:00Engenharia Agrícola - Associação Brasileira de Engenharia Agrícola (SBEA)false |
dc.title.none.fl_str_mv |
Obstruction of drippers as a result of application of moisturized whitewash in irrigation water |
title |
Obstruction of drippers as a result of application of moisturized whitewash in irrigation water |
spellingShingle |
Obstruction of drippers as a result of application of moisturized whitewash in irrigation water Barboza Júnior,Cícero R. A. drip tube clogging evaluation hydrated lime |
title_short |
Obstruction of drippers as a result of application of moisturized whitewash in irrigation water |
title_full |
Obstruction of drippers as a result of application of moisturized whitewash in irrigation water |
title_fullStr |
Obstruction of drippers as a result of application of moisturized whitewash in irrigation water |
title_full_unstemmed |
Obstruction of drippers as a result of application of moisturized whitewash in irrigation water |
title_sort |
Obstruction of drippers as a result of application of moisturized whitewash in irrigation water |
author |
Barboza Júnior,Cícero R. A. |
author_facet |
Barboza Júnior,Cícero R. A. Lelis Neto,João A. Hartwig,Marcelo P. Barros,Allan C. Coelho,Rubens D. |
author_role |
author |
author2 |
Lelis Neto,João A. Hartwig,Marcelo P. Barros,Allan C. Coelho,Rubens D. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Barboza Júnior,Cícero R. A. Lelis Neto,João A. Hartwig,Marcelo P. Barros,Allan C. Coelho,Rubens D. |
dc.subject.por.fl_str_mv |
drip tube clogging evaluation hydrated lime |
topic |
drip tube clogging evaluation hydrated lime |
description |
Plug dynamics of non compensate drip tubes were evaluated, by the precipitation of moisturized whitewash [Ca(OH)2], which is used in the fertigation for the bulb pH control of the trademarks Azud, Amanco, Naandan, Netafim, Petroisa, Queen Gil, with flow rate varying between 0.4 to 3.0 L h-1 usually used in the country. For this matter, increasing doses of Ca(OH)² were applied in the irrigation water, from 0.01 g L-1 to 1.84 g L-1. The flow rate of each drip tube was measured in intervals of time initially of 7 days, later of 15 days of system operation, totaling a time of 100 days of operation, corresponding to nine applications or 432 hours. The coefficient of variation (CV), and relative rate flow (Qr) were evaluated. The results pointed differences among the evaluated emitter regarding the occurrence of the clogging, and the models G2 and G5 presented the smallest levels of flow rate variation comparing to the models G6, G7 and G9. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-10-01 |
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=S0100-69162011000500006 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000500006 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0100-69162011000500006 |
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 |
Associação Brasileira de Engenharia Agrícola |
publisher.none.fl_str_mv |
Associação Brasileira de Engenharia Agrícola |
dc.source.none.fl_str_mv |
Engenharia Agrícola v.31 n.5 2011 reponame:Engenharia Agrícola instname:Associação Brasileira de Engenharia Agrícola (SBEA) instacron:SBEA |
instname_str |
Associação Brasileira de Engenharia Agrícola (SBEA) |
instacron_str |
SBEA |
institution |
SBEA |
reponame_str |
Engenharia Agrícola |
collection |
Engenharia Agrícola |
repository.name.fl_str_mv |
Engenharia Agrícola - Associação Brasileira de Engenharia Agrícola (SBEA) |
repository.mail.fl_str_mv |
revistasbea@sbea.org.br||sbea@sbea.org.br |
_version_ |
1752126270618992640 |