Water availability to soybean crop as a function of the least limiting water range and evapotranspiration

Detalhes bibliográficos
Autor(a) principal: Rodrigues, Tallyta Ramalho
Data de Publicação: 2017
Outros Autores: Casaroli, Derblai, Pêgo Evangelista, Adão Wagner, Junior, José Alves
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/43746
Resumo: Irrigation management aimed at optimal production has been based only on the water factor. However, in addition to the water potential of the soil, factors such as soil penetration resistance and soil O2 diffusion rate also affect plant growth and interfere with water absorption, even if moisture is within the available water range. This study aimed at quantifying the least limiting water range and demonstrating its potential in soil and water management in irrigated agriculture. In order to determine the least limiting water range, soil water retention curves and soil resistance to penetration were determined from undisturbed soil samples. The sequential water balance and the reference, crop and real evapotranspiration were determined for a soybean crop season. Soil aeration was the least limiting water range upper limit for soils with bulk density greater than 1.33 Mg m-3, whereas soil resistance to penetration was the lower limit for bulk density higher than 1.43 Mg m-3. The bulk density of the soil studied was 1.35 Mg m-3, indicating 0.37 m3 m-3 of water availability, based on the least limiting water range, which is sufficient to supply the crop evapotranspiration. Irrigation management based on the least limiting water range is more efficient and complete than that based only on available water.
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spelling Water availability to soybean crop as a function of the least limiting water range and evapotranspirationDisponibilidade hídrica para a cultura da soja em função do intervalo hídrico ótimo e da evapotranspiraçãoGlycine max L. [Merril]soil water balancewater demand.Glycine max L. [Merril]balanço de água no solodemanda hídrica.Irrigation management aimed at optimal production has been based only on the water factor. However, in addition to the water potential of the soil, factors such as soil penetration resistance and soil O2 diffusion rate also affect plant growth and interfere with water absorption, even if moisture is within the available water range. This study aimed at quantifying the least limiting water range and demonstrating its potential in soil and water management in irrigated agriculture. In order to determine the least limiting water range, soil water retention curves and soil resistance to penetration were determined from undisturbed soil samples. The sequential water balance and the reference, crop and real evapotranspiration were determined for a soybean crop season. Soil aeration was the least limiting water range upper limit for soils with bulk density greater than 1.33 Mg m-3, whereas soil resistance to penetration was the lower limit for bulk density higher than 1.43 Mg m-3. The bulk density of the soil studied was 1.35 Mg m-3, indicating 0.37 m3 m-3 of water availability, based on the least limiting water range, which is sufficient to supply the crop evapotranspiration. Irrigation management based on the least limiting water range is more efficient and complete than that based only on available water.O manejo de irrigação, visando à produção ótima, tem sido baseado apenas no fator água. No entanto, além do potencial de água no solo, fatores como a resistência do solo à penetração e a taxa de difusão de O2 no solo também afetam o crescimento das plantas e interferem na absorção de água, mesmo em umidades dentro do intervalo de água disponível. Objetivou-se quantificar o intervalo hídrico ótimo e demonstrar o seu potencial no manejo do solo e da água, na agricultura irrigada. Para determinação do intervalo hídrico ótimo, foram estabelecidas curvas de retenção de água no solo e de resistência do solo à penetração a partir de amostras do solo indeformadas. O balanço hídrico sequencial e a evapotranspiração de referência, da cultura e real foram determinados para o período de permanência da soja em campo. A aeração do solo foi o limite superior do intervalo hídrico ótimo para densidade do solo superior a 1,33 Mg m-3, enquanto a resistência do solo à penetração foi o limite inferior para densidade do solo superior a 1,43 Mg m-3. A densidade do solo estudado foi de 1,35 Mg m-3, indicando disponibilidade hídrica de 0,37 m3 m-3, com base no intervalo hídrico ótimo, o qual é suficiente para suprir a evapotranspiração da cultura. O manejo da irrigação baseado no intervalo hídrico ótimo é mais eficiente e completo do que o baseado apenas na água disponível.Escola de Agronomia - Universidade Federal de Goiás2017-06-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/43746Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 47, n. 2, Apr./Jun. 2017; 161-167Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 47, n. 2, abr./jun. 2017; 161-167Pesquisa Agropecuária Tropical; v. 47, n. 2, abr./jun. 2017; 161-1671983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/43746/23292Copyright (c) 2017 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessRodrigues, Tallyta RamalhoCasaroli, DerblaiPêgo Evangelista, Adão WagnerJunior, José Alves2020-07-13T18:34:51Zoai:ojs.revistas.ufg.br:article/43746Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:15.781763Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Water availability to soybean crop as a function of the least limiting water range and evapotranspiration
Disponibilidade hídrica para a cultura da soja em função do intervalo hídrico ótimo e da evapotranspiração
title Water availability to soybean crop as a function of the least limiting water range and evapotranspiration
spellingShingle Water availability to soybean crop as a function of the least limiting water range and evapotranspiration
Rodrigues, Tallyta Ramalho
Glycine max L. [Merril]
soil water balance
water demand.
Glycine max L. [Merril]
balanço de água no solo
demanda hídrica.
title_short Water availability to soybean crop as a function of the least limiting water range and evapotranspiration
title_full Water availability to soybean crop as a function of the least limiting water range and evapotranspiration
title_fullStr Water availability to soybean crop as a function of the least limiting water range and evapotranspiration
title_full_unstemmed Water availability to soybean crop as a function of the least limiting water range and evapotranspiration
title_sort Water availability to soybean crop as a function of the least limiting water range and evapotranspiration
author Rodrigues, Tallyta Ramalho
author_facet Rodrigues, Tallyta Ramalho
Casaroli, Derblai
Pêgo Evangelista, Adão Wagner
Junior, José Alves
author_role author
author2 Casaroli, Derblai
Pêgo Evangelista, Adão Wagner
Junior, José Alves
author2_role author
author
author
dc.contributor.author.fl_str_mv Rodrigues, Tallyta Ramalho
Casaroli, Derblai
Pêgo Evangelista, Adão Wagner
Junior, José Alves
dc.subject.por.fl_str_mv Glycine max L. [Merril]
soil water balance
water demand.
Glycine max L. [Merril]
balanço de água no solo
demanda hídrica.
topic Glycine max L. [Merril]
soil water balance
water demand.
Glycine max L. [Merril]
balanço de água no solo
demanda hídrica.
description Irrigation management aimed at optimal production has been based only on the water factor. However, in addition to the water potential of the soil, factors such as soil penetration resistance and soil O2 diffusion rate also affect plant growth and interfere with water absorption, even if moisture is within the available water range. This study aimed at quantifying the least limiting water range and demonstrating its potential in soil and water management in irrigated agriculture. In order to determine the least limiting water range, soil water retention curves and soil resistance to penetration were determined from undisturbed soil samples. The sequential water balance and the reference, crop and real evapotranspiration were determined for a soybean crop season. Soil aeration was the least limiting water range upper limit for soils with bulk density greater than 1.33 Mg m-3, whereas soil resistance to penetration was the lower limit for bulk density higher than 1.43 Mg m-3. The bulk density of the soil studied was 1.35 Mg m-3, indicating 0.37 m3 m-3 of water availability, based on the least limiting water range, which is sufficient to supply the crop evapotranspiration. Irrigation management based on the least limiting water range is more efficient and complete than that based only on available water.
publishDate 2017
dc.date.none.fl_str_mv 2017-06-27
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/43746
url https://revistas.ufg.br/pat/article/view/43746
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/43746/23292
dc.rights.driver.fl_str_mv Copyright (c) 2017 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2017 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 47, n. 2, Apr./Jun. 2017; 161-167
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 47, n. 2, abr./jun. 2017; 161-167
Pesquisa Agropecuária Tropical; v. 47, n. 2, abr./jun. 2017; 161-167
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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