Effect of soil-water tension on herbaceous cotton yield
Autor(a) principal: | |
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Data de Publicação: | 1999 |
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/5523 |
Resumo: | A field experiment was conducted during two years, 1990/91, in an alluvial soil, in the State of Paraíba, Brazil, to study the effect of the levels of soil-water tension, 50, 100, 200, 300, 400 and 600 kPa, at 20 cm depth, on upland cotton (Gossypium hirsutum L.r. latifolium Hutch, cv. CNPA-6H) yield. The experimental design was a complete randomized block with six treatments and four repetitions. There was an effect of the treatments on plant height, leaf area index and cotton yield, but the precocity index was not modified. Water should be applied when the soil-water tension, measured at 20 cm depth, reaches values around 200 kPa. There was a quadratic (R2 = 0.893**) response of cotton yields to soil water tension, with the maximum when water was applied at 52% of soil water depletion. |
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Effect of soil-water tension on herbaceous cotton yieldEfeito de tensões de água no solo sobre o rendimento do algodoeiro herbáceoGossypium hirsutum; available water; irrigationGossypium hirsurtum; água disponível; irrigaçãoA field experiment was conducted during two years, 1990/91, in an alluvial soil, in the State of Paraíba, Brazil, to study the effect of the levels of soil-water tension, 50, 100, 200, 300, 400 and 600 kPa, at 20 cm depth, on upland cotton (Gossypium hirsutum L.r. latifolium Hutch, cv. CNPA-6H) yield. The experimental design was a complete randomized block with six treatments and four repetitions. There was an effect of the treatments on plant height, leaf area index and cotton yield, but the precocity index was not modified. Water should be applied when the soil-water tension, measured at 20 cm depth, reaches values around 200 kPa. There was a quadratic (R2 = 0.893**) response of cotton yields to soil water tension, with the maximum when water was applied at 52% of soil water depletion.Durante dois anos, 1990/91, em solo aluvial, no município de Sousa, PB, estudou-se, em condições de irrigação por sulco, o efeito das tensões de água no solo a 50, 100, 200, 300, 400 e 600 kPa, na profundidade de 20 cm, sobre o rendimento do algodoeiro herbáceo (Gossypium hirsutum L.r. latifolium Hutch), cv. CNPA-6H. Adotou-se o delineamento experimental de blocos ao acaso com quatro repetições. Os resultados mostraram que houve efeito significativo dos tratamentos sobre a altura da planta, índice de área foliar e rendimento de algodão em rama, mas não houve efeito sobre os dados de precocidade. A tensão de 200 kPa mostrou-se como o melhor nível de água no solo para se efetuar as irrigações, uma vez que para as tensões superiores o rendimento foi significativamente reduzido.O efeito sobre o rendimento foi de natureza quadrática (R2 = 0,893**), o que indica que o rendimento máximo seria atingido irrigando-se a cultura com 52% de esgotamento da água disponível no solo.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraOliveira, Francisco Assis deCampos, Tarcísio Gomes da SilvaOliveira, Bernadete Campos1999-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/5523Pesquisa Agropecuaria Brasileira; v.34, n.10, out. 1999; 1905-1911Pesquisa Agropecuária Brasileira; v.34, n.10, out. 1999; 1905-19111678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/5523/2714info:eu-repo/semantics/openAccess2012-02-13T11:38:31Zoai:ojs.seer.sct.embrapa.br:article/5523Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2012-02-13T11:38:31Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Effect of soil-water tension on herbaceous cotton yield Efeito de tensões de água no solo sobre o rendimento do algodoeiro herbáceo |
title |
Effect of soil-water tension on herbaceous cotton yield |
spellingShingle |
Effect of soil-water tension on herbaceous cotton yield Oliveira, Francisco Assis de Gossypium hirsutum; available water; irrigation Gossypium hirsurtum; água disponível; irrigação |
title_short |
Effect of soil-water tension on herbaceous cotton yield |
title_full |
Effect of soil-water tension on herbaceous cotton yield |
title_fullStr |
Effect of soil-water tension on herbaceous cotton yield |
title_full_unstemmed |
Effect of soil-water tension on herbaceous cotton yield |
title_sort |
Effect of soil-water tension on herbaceous cotton yield |
author |
Oliveira, Francisco Assis de |
author_facet |
Oliveira, Francisco Assis de Campos, Tarcísio Gomes da Silva Oliveira, Bernadete Campos |
author_role |
author |
author2 |
Campos, Tarcísio Gomes da Silva Oliveira, Bernadete Campos |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Oliveira, Francisco Assis de Campos, Tarcísio Gomes da Silva Oliveira, Bernadete Campos |
dc.subject.por.fl_str_mv |
Gossypium hirsutum; available water; irrigation Gossypium hirsurtum; água disponível; irrigação |
topic |
Gossypium hirsutum; available water; irrigation Gossypium hirsurtum; água disponível; irrigação |
description |
A field experiment was conducted during two years, 1990/91, in an alluvial soil, in the State of Paraíba, Brazil, to study the effect of the levels of soil-water tension, 50, 100, 200, 300, 400 and 600 kPa, at 20 cm depth, on upland cotton (Gossypium hirsutum L.r. latifolium Hutch, cv. CNPA-6H) yield. The experimental design was a complete randomized block with six treatments and four repetitions. There was an effect of the treatments on plant height, leaf area index and cotton yield, but the precocity index was not modified. Water should be applied when the soil-water tension, measured at 20 cm depth, reaches values around 200 kPa. There was a quadratic (R2 = 0.893**) response of cotton yields to soil water tension, with the maximum when water was applied at 52% of soil water depletion. |
publishDate |
1999 |
dc.date.none.fl_str_mv |
1999-10-01 |
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/5523 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/5523 |
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/5523/2714 |
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.34, n.10, out. 1999; 1905-1911 Pesquisa Agropecuária Brasileira; v.34, n.10, out. 1999; 1905-1911 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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1793416688405839872 |