Methodology for adequating parameters of the furrow irrigation method for use by irrigation extensionists.
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/16777 |
Resumo: | A methodology for analyzing and adequating results of furrow irrigation research is described. Field data on bulk density, water retention curve, infiltration at 50% level of available water, and water advance in furrow with different slopes and flow rates: 0.15% (2.5 - 3.1 - 4 - 5 liters/sec), 0.24% (2 - 2.5 - 3 liters/sec) and 0.37% (1 - 1.5 - 2 - 2.5 liters/sec) were collected in an oxisol of the Bebedouro irrigation Project, Petrolina, PE. Effective rooting depth of crops was defined as a function of the phenological cycle. The maximum non erosive and most efficient flow rates were defined for different slope conditions. The moat efficient combinations of flow rate-slope for this soil were 2.5 liters/sec-0.15%, 2 liters/sec-0.24% and 1.5 liters/sec-037%. Field data were analyzed to answer the question How much to apply? Nomographs were prepared to be used by irrigation extensionists, for advising water application at farmer level. These nomographs, by sequential use define effective rooting depth as a function of time after planting, net water depth as a function of available water level and effective rooting depth, efficient flow rate as a function of furrow slope, application efficiency as a function of furrow length and combination of flow rate-slope, and irrigation time as a function of gross water depth and furrow length. The methodology can be extrapolated, and has to be applied in every soil. |
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Methodology for adequating parameters of the furrow irrigation method for use by irrigation extensionists.Metodologia para adequação de parâmetros do método de irrigação por sulcos para uso pela assistência técnicaapplication efficiency; furrow irrigation; infiltration; irrigation management; irrigation methods; surface irrigationeficiência de aplicação; infiltração; irrigação superficial; manejo da irrigação; métodos de irrigação; sulcosA methodology for analyzing and adequating results of furrow irrigation research is described. Field data on bulk density, water retention curve, infiltration at 50% level of available water, and water advance in furrow with different slopes and flow rates: 0.15% (2.5 - 3.1 - 4 - 5 liters/sec), 0.24% (2 - 2.5 - 3 liters/sec) and 0.37% (1 - 1.5 - 2 - 2.5 liters/sec) were collected in an oxisol of the Bebedouro irrigation Project, Petrolina, PE. Effective rooting depth of crops was defined as a function of the phenological cycle. The maximum non erosive and most efficient flow rates were defined for different slope conditions. The moat efficient combinations of flow rate-slope for this soil were 2.5 liters/sec-0.15%, 2 liters/sec-0.24% and 1.5 liters/sec-037%. Field data were analyzed to answer the question How much to apply? Nomographs were prepared to be used by irrigation extensionists, for advising water application at farmer level. These nomographs, by sequential use define effective rooting depth as a function of time after planting, net water depth as a function of available water level and effective rooting depth, efficient flow rate as a function of furrow slope, application efficiency as a function of furrow length and combination of flow rate-slope, and irrigation time as a function of gross water depth and furrow length. The methodology can be extrapolated, and has to be applied in every soil.Descreve-se urna metodologia de análise a representação de dados de pesquisa sobre parâmetros do método de irrigação por sulcos. Na coleta de dados usou-se um oxissolo (latossolo 37 AB) do Projeto de Irrigação de Bebedouro. Fizeram-se determinações de densidade aparente, curvas de retenção de umidade, infiltração ao nível de 50% de água disponível, e testes de avanço de água em sulcos com diferentes declividades e vazões: 0,15% (2,5 - 3,1 - 4 - 5 litros/seg.), 0,24% (2- 2,5 - 3 litros/seg.) e 0,37% (1 - 1,5 – 2 - 2,5 litros/seg.). A profundidade efetiva do sistema radicular das culturas é definida em função do ciclo fenológico. A vazão máxima não-erosiva e mais eficiente foi definida a partir dos dados dos testes de avanço de água nos sulcos, sendo que se as combinações mais eficientes de vazão-declividade foram: 2,5 litros/seg. -0,15% ,2 litros/seg.- 0,24% e 1,5 litros/seg.-0,37%. Os dados foram analisados para responder à pergunta "quanto irrigar", construindo-se nomogramas para manejo da irrigação, visando seu uso rápido pela assistência técnica. Os nomogramas, usados em forma sequencial, permitem definir: profundidade efetiva das raízes em função do tempo após o plantio, lâmina de reposição em função do nível de água disponível e profundidade do sistema radicular, vazão mais eficiente em função da declividade dos sulcos, eficiência de aplicação em função do comprimento de sulcos e combinação vazão-declividade, e tempo de irrigação em função da lâmina bruta e comprimento de sulcos. A metodologia pode ser extrapolada e deve ser aplicada em cada solo.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraMillar, Agustin A.Azevedo, Hamilton M. dePossídio, Edson L. de2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16777Pesquisa Agropecuaria Brasileira; v.13, n.2, fev. 1978; 75-82Pesquisa Agropecuária Brasileira; v.13, n.2, fev. 1978; 75-821678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/16777/11102info:eu-repo/semantics/openAccess2014-04-15T19:14:29Zoai:ojs.seer.sct.embrapa.br:article/16777Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T19:14:29Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Methodology for adequating parameters of the furrow irrigation method for use by irrigation extensionists. Metodologia para adequação de parâmetros do método de irrigação por sulcos para uso pela assistência técnica |
title |
Methodology for adequating parameters of the furrow irrigation method for use by irrigation extensionists. |
spellingShingle |
Methodology for adequating parameters of the furrow irrigation method for use by irrigation extensionists. Millar, Agustin A. application efficiency; furrow irrigation; infiltration; irrigation management; irrigation methods; surface irrigation eficiência de aplicação; infiltração; irrigação superficial; manejo da irrigação; métodos de irrigação; sulcos |
title_short |
Methodology for adequating parameters of the furrow irrigation method for use by irrigation extensionists. |
title_full |
Methodology for adequating parameters of the furrow irrigation method for use by irrigation extensionists. |
title_fullStr |
Methodology for adequating parameters of the furrow irrigation method for use by irrigation extensionists. |
title_full_unstemmed |
Methodology for adequating parameters of the furrow irrigation method for use by irrigation extensionists. |
title_sort |
Methodology for adequating parameters of the furrow irrigation method for use by irrigation extensionists. |
author |
Millar, Agustin A. |
author_facet |
Millar, Agustin A. Azevedo, Hamilton M. de Possídio, Edson L. de |
author_role |
author |
author2 |
Azevedo, Hamilton M. de Possídio, Edson L. de |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Millar, Agustin A. Azevedo, Hamilton M. de Possídio, Edson L. de |
dc.subject.por.fl_str_mv |
application efficiency; furrow irrigation; infiltration; irrigation management; irrigation methods; surface irrigation eficiência de aplicação; infiltração; irrigação superficial; manejo da irrigação; métodos de irrigação; sulcos |
topic |
application efficiency; furrow irrigation; infiltration; irrigation management; irrigation methods; surface irrigation eficiência de aplicação; infiltração; irrigação superficial; manejo da irrigação; métodos de irrigação; sulcos |
description |
A methodology for analyzing and adequating results of furrow irrigation research is described. Field data on bulk density, water retention curve, infiltration at 50% level of available water, and water advance in furrow with different slopes and flow rates: 0.15% (2.5 - 3.1 - 4 - 5 liters/sec), 0.24% (2 - 2.5 - 3 liters/sec) and 0.37% (1 - 1.5 - 2 - 2.5 liters/sec) were collected in an oxisol of the Bebedouro irrigation Project, Petrolina, PE. Effective rooting depth of crops was defined as a function of the phenological cycle. The maximum non erosive and most efficient flow rates were defined for different slope conditions. The moat efficient combinations of flow rate-slope for this soil were 2.5 liters/sec-0.15%, 2 liters/sec-0.24% and 1.5 liters/sec-037%. Field data were analyzed to answer the question How much to apply? Nomographs were prepared to be used by irrigation extensionists, for advising water application at farmer level. These nomographs, by sequential use define effective rooting depth as a function of time after planting, net water depth as a function of available water level and effective rooting depth, efficient flow rate as a function of furrow slope, application efficiency as a function of furrow length and combination of flow rate-slope, and irrigation time as a function of gross water depth and furrow length. The methodology can be extrapolated, and has to be applied in every soil. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-15 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/16777 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/16777 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/16777/11102 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.13, n.2, fev. 1978; 75-82 Pesquisa Agropecuária Brasileira; v.13, n.2, fev. 1978; 75-82 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416651366989824 |