Water availability to soybean crop as a function of the least limiting water range and evapotranspiration
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2017 |
| Outros Autores: | , , |
| 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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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:2020-07-13T18:34:51Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)false |
| 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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1789440242321719296 |