Water productivity in maize, at different levels of deficit irrigation in humid climate

Productividad del agua en maíz, con diferentes niveles de riego deficitario en clima húmedo

Produtividade da água no milho, com diferentes níveis de irrigação deficitária, em clima úmido

Hayashi, Raquel Mayumi - Dogliotti, Santiago

Editor(es): Terra

Resumen:

In regions with temperate and humid climate such as Uruguay, irrigation stabilizes and increases the yields of summer crops by supplementing rainfall. Irrigation on demand generates higher water consumption, it affects production system sustainability due to inefficient use of resources and it is environmentally negative (excessive fresh water use and energy for its extraction). It is necessary to evaluate deficit irrigation alternatives that increase the productivity of irrigation water. Therefore, three maximum irrigation depths were evaluated: (T2) 3 mm day-1, (T3) 6 mm day-1, (T4) 9 mm day-1, and (T1) control without irrigation (only receives rainfall), on corn production, in order to define more efficient irrigation strategies. Results indicate responses to different levels of deficit irrigation. When rainfall was higher than average, its poor distribution during the crop cycle generated water deficit at specific times, affecting yield. T1 and T2 did not cover etc during the Critical Period and grain filling, which caused lower yields. The yields in T3 and T4 were higher and on the three-year average they were significantly different. T3 did not always cover etc, but the soil reserve and rainfall contributed to cover it, saving almost 20% of irrigation water compared to T4. However, the water productivity indicators (wue, iwue) show that T4 is the best irrigation strategy, although it uses less rainfall and soil water reserve.


En regiones de clima templado y húmedo como Uruguay el riego estabiliza y aumenta los rendimientos de los cultivos estivales, suplementando las precipitaciones. El riego a demanda tiene mayor consumo de agua, afectando la sostenibilidad del sistema de producción por el uso ineficiente de los recursos, y es ambientalmente negativo (uso excesivo de agua dulce y energía para su extracción). Es necesario evaluar alternativas de riego deficitario que aumenten la productividad del agua riego. Para ello se evaluaron tres láminas máximas de reposición: (T2) 3 mm día-1, (T3) 6 mm día-1, (T4) 9 mm día-1, y (T1) testigo sin riego, (solo agua de lluvia), sobre la producción de maíz, para definir estrategias de riego más eficientes. Los resultados indican que existe respuesta a diferentes niveles de riego deficitario. Cuando las precipitaciones fueron superiores al promedio, su mala distribución durante el ciclo del cultivo generó déficit hídrico en momentos puntuales, afectando el rendimiento. El T1 y T2 no cubrieron la etc durante el Periodo Crítico y llenado de grano, causando menores rendimientos. El T3 y T4 dieron rendimientos mayores y en el promedio de tres años fueron diferentes significativamente. El T3 no siempre cubrió la etc, pero la reserva del suelo y las precipitaciones contribuyeron para cubrirlo, ahorrando casi 20 % de agua de riego respecto a T4. Sin embargo, los indicadores de productividad del agua (eua, euar) muestran que T4 es mejor estrategia de riego, aunque realice menor aprovechamiento de las precipitaciones y del agua del suelo.


Em regiões climáticas temperadas e úmidas, como o Uruguai, a irrigação estabiliza e aumenta a produtividade nas culturas de verão, suplementando as chuvas. A irrigação sob demanda gera maior consumo de água, afeta a sustentabilidade dos sistemas de produção devido ao uso ineficiente dos recursos e é ambientalmente negativa (uso excessivo de água doce e energia para sua extração). É necessário avaliar alternativas de irrigação deficitária que aumentem a produtividade da água utilizada na irrigação. Para isso, três lâminas de irrigação máximas foram avaliadas: (T2) 3 mm dia-1, (T3) 6 mm dia-1, (T4) 9 mm dia-1 e (T1) controle sem irrigação, (apenas água da chuva), na produção de milho, para definir estratégias de irrigação mais eficientes. Os resultados indicam que há uma resposta a diferentes níveis de déficit de irrigação. Quando as chuvas eram superiores à média, sua má distribuição durante o ciclo da cultura gerava déficit hídrico em momentos específicos, afetando a produtividade. T1 e T2 não cobriram a ETc durante o período crítico e enchimento de grãos, causando menores rendimentos. T3 e T4 deram rendimentos mais elevados e na média de três anos foram significativamente diferentes. Nem sempre o T3 cobriu a ETc, mas a reserva de solo e a chuva contribuíram para cobri-la, economizando quase 20% da água de irrigação em relação ao T4. No entanto, os indicadores de produtividade da água (EUA, EUAR) mostram que o T4 é a melhor estratégia de irrigação, embora faça menos uso da chuva e da água do solo.


Detalles Bibliográficos
2021
Clima Temperado
Clima Templado
Deficit Irrigation
Eficiência Uso de Água
Eficiencia Uso del Agua
Irrigação Deficitária
Riego Deficitario
Temperate Climate
Water Use Efficiency
Zea Mays
Inglés
Universidad de la República
COLIBRI
https://hdl.handle.net/20.500.12008/43779
Acceso abierto
Licencia Creative Commons Atribución (CC - By 4.0)
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author Hayashi, Raquel Mayumi
author2 Dogliotti, Santiago
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author_facet Hayashi, Raquel Mayumi
Dogliotti, Santiago
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dc.contributor.filiacion.none.fl_str_mv Hayashi Raquel Mayumi, Universidad de la Republica, Facultad de Agronomía, Departamento de Suelos y Aguas, Montevideo, Uruguay https://orcid.org/0000-0002-6662-716X
Dogliotti Santiago, Universidad de la República, Facultad de Agronomía, Departamento de Producción Vegetal, Montevideo, Uruguay https://orcid.org/0000-0001-9421-6109
dc.creator.editor.none.fl_str_mv Terra
dc.creator.none.fl_str_mv Hayashi, Raquel Mayumi
Dogliotti, Santiago
dc.date.accessioned.none.fl_str_mv 2024-05-08T17:41:03Z
dc.date.available.none.fl_str_mv 2024-05-08T17:41:03Z
dc.date.issued.none.fl_str_mv 2021
dc.description.abstract.none.fl_txt_mv In regions with temperate and humid climate such as Uruguay, irrigation stabilizes and increases the yields of summer crops by supplementing rainfall. Irrigation on demand generates higher water consumption, it affects production system sustainability due to inefficient use of resources and it is environmentally negative (excessive fresh water use and energy for its extraction). It is necessary to evaluate deficit irrigation alternatives that increase the productivity of irrigation water. Therefore, three maximum irrigation depths were evaluated: (T2) 3 mm day-1, (T3) 6 mm day-1, (T4) 9 mm day-1, and (T1) control without irrigation (only receives rainfall), on corn production, in order to define more efficient irrigation strategies. Results indicate responses to different levels of deficit irrigation. When rainfall was higher than average, its poor distribution during the crop cycle generated water deficit at specific times, affecting yield. T1 and T2 did not cover etc during the Critical Period and grain filling, which caused lower yields. The yields in T3 and T4 were higher and on the three-year average they were significantly different. T3 did not always cover etc, but the soil reserve and rainfall contributed to cover it, saving almost 20% of irrigation water compared to T4. However, the water productivity indicators (wue, iwue) show that T4 is the best irrigation strategy, although it uses less rainfall and soil water reserve.
En regiones de clima templado y húmedo como Uruguay el riego estabiliza y aumenta los rendimientos de los cultivos estivales, suplementando las precipitaciones. El riego a demanda tiene mayor consumo de agua, afectando la sostenibilidad del sistema de producción por el uso ineficiente de los recursos, y es ambientalmente negativo (uso excesivo de agua dulce y energía para su extracción). Es necesario evaluar alternativas de riego deficitario que aumenten la productividad del agua riego. Para ello se evaluaron tres láminas máximas de reposición: (T2) 3 mm día-1, (T3) 6 mm día-1, (T4) 9 mm día-1, y (T1) testigo sin riego, (solo agua de lluvia), sobre la producción de maíz, para definir estrategias de riego más eficientes. Los resultados indican que existe respuesta a diferentes niveles de riego deficitario. Cuando las precipitaciones fueron superiores al promedio, su mala distribución durante el ciclo del cultivo generó déficit hídrico en momentos puntuales, afectando el rendimiento. El T1 y T2 no cubrieron la etc durante el Periodo Crítico y llenado de grano, causando menores rendimientos. El T3 y T4 dieron rendimientos mayores y en el promedio de tres años fueron diferentes significativamente. El T3 no siempre cubrió la etc, pero la reserva del suelo y las precipitaciones contribuyeron para cubrirlo, ahorrando casi 20 % de agua de riego respecto a T4. Sin embargo, los indicadores de productividad del agua (eua, euar) muestran que T4 es mejor estrategia de riego, aunque realice menor aprovechamiento de las precipitaciones y del agua del suelo.
Em regiões climáticas temperadas e úmidas, como o Uruguai, a irrigação estabiliza e aumenta a produtividade nas culturas de verão, suplementando as chuvas. A irrigação sob demanda gera maior consumo de água, afeta a sustentabilidade dos sistemas de produção devido ao uso ineficiente dos recursos e é ambientalmente negativa (uso excessivo de água doce e energia para sua extração). É necessário avaliar alternativas de irrigação deficitária que aumentem a produtividade da água utilizada na irrigação. Para isso, três lâminas de irrigação máximas foram avaliadas: (T2) 3 mm dia-1, (T3) 6 mm dia-1, (T4) 9 mm dia-1 e (T1) controle sem irrigação, (apenas água da chuva), na produção de milho, para definir estratégias de irrigação mais eficientes. Os resultados indicam que há uma resposta a diferentes níveis de déficit de irrigação. Quando as chuvas eram superiores à média, sua má distribuição durante o ciclo da cultura gerava déficit hídrico em momentos específicos, afetando a produtividade. T1 e T2 não cobriram a ETc durante o período crítico e enchimento de grãos, causando menores rendimentos. T3 e T4 deram rendimentos mais elevados e na média de três anos foram significativamente diferentes. Nem sempre o T3 cobriu a ETc, mas a reserva de solo e a chuva contribuíram para cobri-la, economizando quase 20% da água de irrigação em relação ao T4. No entanto, os indicadores de produtividade da água (EUA, EUAR) mostram que o T4 é a melhor estratégia de irrigação, embora faça menos uso da chuva e da água do solo.
dc.format.extent.es.fl_str_mv e390
dc.format.mimetype.es.fl_str_mv application/pdf
dc.identifier.citation.es.fl_str_mv Hayashi, R. M., y Dogliotti, S. "Water productivity in maize, at different levels of deficit irrigation in humid climate". Agrociencia Uruguay [en línea]. 2021, 25(1), e390. Doi: 10.31285/AGRO.25.390.
dc.identifier.doi.none.fl_str_mv 10.31285/AGRO.25.390
dc.identifier.issn.none.fl_str_mv 2730-5066
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/20.500.12008/43779
dc.language.iso.none.fl_str_mv en
eng
dc.publisher.es.fl_str_mv Facultad de Agronomía, Universidad de la República - INIA
dc.relation.ispartof.es.fl_str_mv Agrociencia Uruguay, 2021 25(1):e390
dc.rights.license.none.fl_str_mv Licencia Creative Commons Atribución (CC - By 4.0)
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
dc.source.none.fl_str_mv reponame:COLIBRI
instname:Universidad de la República
instacron:Universidad de la República
dc.subject.es.fl_str_mv Clima Temperado
Clima Templado
Deficit Irrigation
Eficiência Uso de Água
Eficiencia Uso del Agua
Irrigação Deficitária
Riego Deficitario
Temperate Climate
Water Use Efficiency
Zea Mays
dc.title.none.fl_str_mv Water productivity in maize, at different levels of deficit irrigation in humid climate
Productividad del agua en maíz, con diferentes niveles de riego deficitario en clima húmedo
Produtividade da água no milho, com diferentes níveis de irrigação deficitária, em clima úmido
dc.type.es.fl_str_mv Artículo
dc.type.none.fl_str_mv info:eu-repo/semantics/article
dc.type.version.none.fl_str_mv info:eu-repo/semantics/publishedVersion
description In regions with temperate and humid climate such as Uruguay, irrigation stabilizes and increases the yields of summer crops by supplementing rainfall. Irrigation on demand generates higher water consumption, it affects production system sustainability due to inefficient use of resources and it is environmentally negative (excessive fresh water use and energy for its extraction). It is necessary to evaluate deficit irrigation alternatives that increase the productivity of irrigation water. Therefore, three maximum irrigation depths were evaluated: (T2) 3 mm day-1, (T3) 6 mm day-1, (T4) 9 mm day-1, and (T1) control without irrigation (only receives rainfall), on corn production, in order to define more efficient irrigation strategies. Results indicate responses to different levels of deficit irrigation. When rainfall was higher than average, its poor distribution during the crop cycle generated water deficit at specific times, affecting yield. T1 and T2 did not cover etc during the Critical Period and grain filling, which caused lower yields. The yields in T3 and T4 were higher and on the three-year average they were significantly different. T3 did not always cover etc, but the soil reserve and rainfall contributed to cover it, saving almost 20% of irrigation water compared to T4. However, the water productivity indicators (wue, iwue) show that T4 is the best irrigation strategy, although it uses less rainfall and soil water reserve.
eu_rights_str_mv openAccess
format article
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identifier_str_mv Hayashi, R. M., y Dogliotti, S. "Water productivity in maize, at different levels of deficit irrigation in humid climate". Agrociencia Uruguay [en línea]. 2021, 25(1), e390. Doi: 10.31285/AGRO.25.390.
2730-5066
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repository.mail.fl_str_mv mabel.seroubian@seciu.edu.uy
repository.name.fl_str_mv COLIBRI - Universidad de la República
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rights_invalid_str_mv Licencia Creative Commons Atribución (CC - By 4.0)
spelling Hayashi Raquel Mayumi, Universidad de la Republica, Facultad de Agronomía, Departamento de Suelos y Aguas, Montevideo, Uruguay https://orcid.org/0000-0002-6662-716XDogliotti Santiago, Universidad de la República, Facultad de Agronomía, Departamento de Producción Vegetal, Montevideo, Uruguay https://orcid.org/0000-0001-9421-61092024-05-08T17:41:03Z2024-05-08T17:41:03Z2021Hayashi, R. M., y Dogliotti, S. "Water productivity in maize, at different levels of deficit irrigation in humid climate". Agrociencia Uruguay [en línea]. 2021, 25(1), e390. Doi: 10.31285/AGRO.25.390.2730-5066https://hdl.handle.net/20.500.12008/4377910.31285/AGRO.25.390In regions with temperate and humid climate such as Uruguay, irrigation stabilizes and increases the yields of summer crops by supplementing rainfall. Irrigation on demand generates higher water consumption, it affects production system sustainability due to inefficient use of resources and it is environmentally negative (excessive fresh water use and energy for its extraction). It is necessary to evaluate deficit irrigation alternatives that increase the productivity of irrigation water. Therefore, three maximum irrigation depths were evaluated: (T2) 3 mm day-1, (T3) 6 mm day-1, (T4) 9 mm day-1, and (T1) control without irrigation (only receives rainfall), on corn production, in order to define more efficient irrigation strategies. Results indicate responses to different levels of deficit irrigation. When rainfall was higher than average, its poor distribution during the crop cycle generated water deficit at specific times, affecting yield. T1 and T2 did not cover etc during the Critical Period and grain filling, which caused lower yields. The yields in T3 and T4 were higher and on the three-year average they were significantly different. T3 did not always cover etc, but the soil reserve and rainfall contributed to cover it, saving almost 20% of irrigation water compared to T4. However, the water productivity indicators (wue, iwue) show that T4 is the best irrigation strategy, although it uses less rainfall and soil water reserve.En regiones de clima templado y húmedo como Uruguay el riego estabiliza y aumenta los rendimientos de los cultivos estivales, suplementando las precipitaciones. El riego a demanda tiene mayor consumo de agua, afectando la sostenibilidad del sistema de producción por el uso ineficiente de los recursos, y es ambientalmente negativo (uso excesivo de agua dulce y energía para su extracción). Es necesario evaluar alternativas de riego deficitario que aumenten la productividad del agua riego. Para ello se evaluaron tres láminas máximas de reposición: (T2) 3 mm día-1, (T3) 6 mm día-1, (T4) 9 mm día-1, y (T1) testigo sin riego, (solo agua de lluvia), sobre la producción de maíz, para definir estrategias de riego más eficientes. Los resultados indican que existe respuesta a diferentes niveles de riego deficitario. Cuando las precipitaciones fueron superiores al promedio, su mala distribución durante el ciclo del cultivo generó déficit hídrico en momentos puntuales, afectando el rendimiento. El T1 y T2 no cubrieron la etc durante el Periodo Crítico y llenado de grano, causando menores rendimientos. El T3 y T4 dieron rendimientos mayores y en el promedio de tres años fueron diferentes significativamente. El T3 no siempre cubrió la etc, pero la reserva del suelo y las precipitaciones contribuyeron para cubrirlo, ahorrando casi 20 % de agua de riego respecto a T4. Sin embargo, los indicadores de productividad del agua (eua, euar) muestran que T4 es mejor estrategia de riego, aunque realice menor aprovechamiento de las precipitaciones y del agua del suelo.Em regiões climáticas temperadas e úmidas, como o Uruguai, a irrigação estabiliza e aumenta a produtividade nas culturas de verão, suplementando as chuvas. A irrigação sob demanda gera maior consumo de água, afeta a sustentabilidade dos sistemas de produção devido ao uso ineficiente dos recursos e é ambientalmente negativa (uso excessivo de água doce e energia para sua extração). É necessário avaliar alternativas de irrigação deficitária que aumentem a produtividade da água utilizada na irrigação. Para isso, três lâminas de irrigação máximas foram avaliadas: (T2) 3 mm dia-1, (T3) 6 mm dia-1, (T4) 9 mm dia-1 e (T1) controle sem irrigação, (apenas água da chuva), na produção de milho, para definir estratégias de irrigação mais eficientes. Os resultados indicam que há uma resposta a diferentes níveis de déficit de irrigação. Quando as chuvas eram superiores à média, sua má distribuição durante o ciclo da cultura gerava déficit hídrico em momentos específicos, afetando a produtividade. T1 e T2 não cobriram a ETc durante o período crítico e enchimento de grãos, causando menores rendimentos. T3 e T4 deram rendimentos mais elevados e na média de três anos foram significativamente diferentes. Nem sempre o T3 cobriu a ETc, mas a reserva de solo e a chuva contribuíram para cobri-la, economizando quase 20% da água de irrigação em relação ao T4. No entanto, os indicadores de produtividade da água (EUA, EUAR) mostram que o T4 é a melhor estratégia de irrigação, embora faça menos uso da chuva e da água do solo.Submitted by Colombo Cabanas Stephanie (colombo@fagro.edu.uy) on 2024-05-08T14:24:12Z No. of bitstreams: 2 license_rdf: 24251 bytes, checksum: 71ed42ef0a0b648670f707320be37b90 (MD5) 2730-5066-390.pdf: 655563 bytes, checksum: bf0131e9eb3d715cdeef5a4efb6ac9fa (MD5)Approved for entry into archive by Muniz Andrea (rosmeri8@hotmail.com) on 2024-05-08T17:00:58Z (GMT) No. of bitstreams: 2 license_rdf: 24251 bytes, checksum: 71ed42ef0a0b648670f707320be37b90 (MD5) 2730-5066-390.pdf: 655563 bytes, checksum: bf0131e9eb3d715cdeef5a4efb6ac9fa (MD5)Made available in DSpace by Luna Fabiana (fabiana.luna@seciu.edu.uy) on 2024-05-08T17:41:03Z (GMT). No. of bitstreams: 2 license_rdf: 24251 bytes, checksum: 71ed42ef0a0b648670f707320be37b90 (MD5) 2730-5066-390.pdf: 655563 bytes, checksum: bf0131e9eb3d715cdeef5a4efb6ac9fa (MD5) Previous issue date: 2021e390application/pdfenengFacultad de Agronomía, Universidad de la República - INIAAgrociencia Uruguay, 2021 25(1):e390Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)info:eu-repo/semantics/openAccessLicencia Creative Commons Atribución (CC - By 4.0)Clima TemperadoClima TempladoDeficit IrrigationEficiência Uso de ÁguaEficiencia Uso del AguaIrrigação DeficitáriaRiego DeficitarioTemperate ClimateWater Use EfficiencyZea MaysWater productivity in maize, at different levels of deficit irrigation in humid climateProductividad del agua en maíz, con diferentes niveles de riego deficitario en clima húmedoProdutividade da água no milho, com diferentes níveis de irrigação deficitária, em clima úmidoArtículoinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionreponame:COLIBRIinstname:Universidad de la Repúblicainstacron:Universidad de la RepúblicaHayashi, Raquel MayumiDogliotti, SantiagoTerraLICENSElicense.txtlicense.txttext/plain; charset=utf-84267http://localhost:8080/xmlui/bitstream/20.500.12008/43779/5/license.txt6429389a7df7277b72b7924fdc7d47a9MD55CC-LICENSElicense_urllicense_urltext/plain; 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- Universidad de la Repúblicafalse
spellingShingle Water productivity in maize, at different levels of deficit irrigation in humid climate
Hayashi, Raquel Mayumi
Clima Temperado
Clima Templado
Deficit Irrigation
Eficiência Uso de Água
Eficiencia Uso del Agua
Irrigação Deficitária
Riego Deficitario
Temperate Climate
Water Use Efficiency
Zea Mays
status_str publishedVersion
title Water productivity in maize, at different levels of deficit irrigation in humid climate
title_full Water productivity in maize, at different levels of deficit irrigation in humid climate
title_fullStr Water productivity in maize, at different levels of deficit irrigation in humid climate
title_full_unstemmed Water productivity in maize, at different levels of deficit irrigation in humid climate
title_short Water productivity in maize, at different levels of deficit irrigation in humid climate
title_sort Water productivity in maize, at different levels of deficit irrigation in humid climate
topic Clima Temperado
Clima Templado
Deficit Irrigation
Eficiência Uso de Água
Eficiencia Uso del Agua
Irrigação Deficitária
Riego Deficitario
Temperate Climate
Water Use Efficiency
Zea Mays
url https://hdl.handle.net/20.500.12008/43779