Water fluxes in maize, millet and soybean plant-residue mulches used in direct seeding

Detalhes bibliográficos
Autor(a) principal: Silva, Fernando Antônio Macena da
Data de Publicação: 2006
Outros Autores: Pinto, Hilton Silveira, Scopel, Eric, Corbeels, Marc, Affholder, François
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/7198
Resumo: The objective of this work was to evaluate the effects of crop residue mulches from maize, millet and soybean on water storage capacity, water evaporation, soil cover, solar radiation interception and surface water run-off as well as to incorporate these effects in a crop growth model. The mulch of millet and maize presented higher capacity for water storage than soybean mulch: 3.26, 3.24 and 2.62 g of water per gram of dry matter, respectively. Water losses from wet mulches were related to the potential evapotranspiration. The soil cover levels were similar among the three types of material. The three types of mulch intercepted similar quantities of photosynthetically active radiation and infrared radiation. The mulch of maize straw was slightly more efficient in intercepting radiation than that from millet or soybean. Mulching with millet residues was efficient in the control of surface water run-off: only 45.5 mm of water (out of 843.5 mm rainfall) was lost through runoff under the no-till system with millet as cover crop, whereas 222.5 mm of water was lost in the conventional system with tillage. Most of the relations derived in this work could be described by exponential models.
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spelling Water fluxes in maize, millet and soybean plant-residue mulches used in direct seedingDinâmica da água nas palhadas de milho, milheto e soja utilizadas em plantio diretowater flow; water balance; modeling; Savannafluxos hídricos; balanço hídrico; modelagem; CerradoThe objective of this work was to evaluate the effects of crop residue mulches from maize, millet and soybean on water storage capacity, water evaporation, soil cover, solar radiation interception and surface water run-off as well as to incorporate these effects in a crop growth model. The mulch of millet and maize presented higher capacity for water storage than soybean mulch: 3.26, 3.24 and 2.62 g of water per gram of dry matter, respectively. Water losses from wet mulches were related to the potential evapotranspiration. The soil cover levels were similar among the three types of material. The three types of mulch intercepted similar quantities of photosynthetically active radiation and infrared radiation. The mulch of maize straw was slightly more efficient in intercepting radiation than that from millet or soybean. Mulching with millet residues was efficient in the control of surface water run-off: only 45.5 mm of water (out of 843.5 mm rainfall) was lost through runoff under the no-till system with millet as cover crop, whereas 222.5 mm of water was lost in the conventional system with tillage. Most of the relations derived in this work could be described by exponential models.O objetivo deste trabalho foi avaliar o efeito das palhadas de milho, milheto e soja na capacidade de interceptação e de armazenamento de água, velocidade de dessecamento, porcentagem de cobertura do solo, interceptação da radiação solar e escoamento superficial, assim como incorporar estes efeitos em um modelo de crescimento de plantas. As palhadas de milheto e de milho apresentaram capacidade maior de armazenar água do que a de soja: 3,26, 3,24 e 2,62 g de água por grama de palhada, respectivamente. A quantidade de água perdida pelos resíduos foi proporcional à evapotranspiração potencial. As taxas de cobertura foram equivalentes nos três tipos de material. Os três tipos de palhada foram similares na interceptação das radiações fotossinteticamente ativa e infravermelha. Os resíduos do milheto foram eficientes no controle do escoamento superficial: do total de 843,5 mm de água precipitada, apenas 45,5 mm foram perdidos pelo escoamento superficial no sistema de plantio direto enquanto no convencional as perdas de água foram de 222,5 mm. Os modelos linear e exponencial expressam de forma significativa a maior parte das relações estudadas.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraSilva, Fernando Antônio Macena daPinto, Hilton SilveiraScopel, EricCorbeels, MarcAffholder, François2006-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7198Pesquisa Agropecuaria Brasileira; v.41, n.5, maio 2006; 717-724Pesquisa Agropecuária Brasileira; v.41, n.5, maio 2006; 717-7241678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7198/4243info:eu-repo/semantics/openAccess2014-06-10T17:59:09Zoai:ojs.seer.sct.embrapa.br:article/7198Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-06-10T17:59:09Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Water fluxes in maize, millet and soybean plant-residue mulches used in direct seeding
Dinâmica da água nas palhadas de milho, milheto e soja utilizadas em plantio direto
title Water fluxes in maize, millet and soybean plant-residue mulches used in direct seeding
spellingShingle Water fluxes in maize, millet and soybean plant-residue mulches used in direct seeding
Silva, Fernando Antônio Macena da
water flow; water balance; modeling; Savanna
fluxos hídricos; balanço hídrico; modelagem; Cerrado
title_short Water fluxes in maize, millet and soybean plant-residue mulches used in direct seeding
title_full Water fluxes in maize, millet and soybean plant-residue mulches used in direct seeding
title_fullStr Water fluxes in maize, millet and soybean plant-residue mulches used in direct seeding
title_full_unstemmed Water fluxes in maize, millet and soybean plant-residue mulches used in direct seeding
title_sort Water fluxes in maize, millet and soybean plant-residue mulches used in direct seeding
author Silva, Fernando Antônio Macena da
author_facet Silva, Fernando Antônio Macena da
Pinto, Hilton Silveira
Scopel, Eric
Corbeels, Marc
Affholder, François
author_role author
author2 Pinto, Hilton Silveira
Scopel, Eric
Corbeels, Marc
Affholder, François
author2_role author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Silva, Fernando Antônio Macena da
Pinto, Hilton Silveira
Scopel, Eric
Corbeels, Marc
Affholder, François
dc.subject.por.fl_str_mv water flow; water balance; modeling; Savanna
fluxos hídricos; balanço hídrico; modelagem; Cerrado
topic water flow; water balance; modeling; Savanna
fluxos hídricos; balanço hídrico; modelagem; Cerrado
description The objective of this work was to evaluate the effects of crop residue mulches from maize, millet and soybean on water storage capacity, water evaporation, soil cover, solar radiation interception and surface water run-off as well as to incorporate these effects in a crop growth model. The mulch of millet and maize presented higher capacity for water storage than soybean mulch: 3.26, 3.24 and 2.62 g of water per gram of dry matter, respectively. Water losses from wet mulches were related to the potential evapotranspiration. The soil cover levels were similar among the three types of material. The three types of mulch intercepted similar quantities of photosynthetically active radiation and infrared radiation. The mulch of maize straw was slightly more efficient in intercepting radiation than that from millet or soybean. Mulching with millet residues was efficient in the control of surface water run-off: only 45.5 mm of water (out of 843.5 mm rainfall) was lost through runoff under the no-till system with millet as cover crop, whereas 222.5 mm of water was lost in the conventional system with tillage. Most of the relations derived in this work could be described by exponential models.
publishDate 2006
dc.date.none.fl_str_mv 2006-05-01
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/7198
url https://seer.sct.embrapa.br/index.php/pab/article/view/7198
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/7198/4243
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.41, n.5, maio 2006; 717-724
Pesquisa Agropecuária Brasileira; v.41, n.5, maio 2006; 717-724
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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