YIELD AND AGRONOMIC EFFICIENCY OF SUNFLOWER IN RESPONSE TO NITROGEN FERTILIZER APPLICATION AND SOWING SEASON

Detalhes bibliográficos
Autor(a) principal: Martinez, Rafael Delgado
Data de Publicação: 2018
Outros Autores: Poot, Wilberth Alfredo Poot, Nava, Sergio Castro, Martínez, Ma Teresa de Jesús Segura, Ortega, Miguel Emilio Moreno
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Caatinga
Texto Completo: https://periodicos.ufersa.edu.br/caatinga/article/view/7284
Resumo: Agronomic responses to the use of agricultural inputs have been used in agriculture to identify the optimal level of nutrients to be supplied for high yield. This strategy helps to avoid economic losses and excessive application of fertilizers that has caused pollution of aquifers and soil degradation. The aim of the study was to evaluate water use efficiency, agronomic efficiency of nitrogen, heat units and use of evapotranspiration in yield and its components in sunflowers under hot climate conditions in function of nitrogen fertilizer application during two sowing season. The experiment was conducted in the field. The treatments were two sowing seasons and three levels of nitrogen fertilizer application and one control: 0, 60, 80 and 120 kg N ha-1. The nitrogen source was urea. The experimental design was complete random blocks with factorial array and four replications. The occurrence of cv. Cobalto sunflower phenological stages were not modified by the treatments. Urea favored agronomic efficiency and water use efficiency. Yield components were modified positively, with increasing receptacle area, 100-grain weight, and grain yield per receptacle. Application of nitrogen fertilizer favored sunflower development, although environmental conditions are of critical importance as demonstrated by a clear interaction between the yield response to fertilizer application and the environment where the plants grew.
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spelling YIELD AND AGRONOMIC EFFICIENCY OF SUNFLOWER IN RESPONSE TO NITROGEN FERTILIZER APPLICATION AND SOWING SEASONfffPRODUÇÃO E EFICIÊNCIA AGRONOMICO DO GIRASSOL NA RESPOSTA À FERTILIZAÇÃO DE NITRÓGENO E À ÉPOCAS DE CULTIVOWater use efficiency. Agronomy efficiency. Yield. Evapotranspiration.Eficiência no uso do água. Eficiência agronômica. Rendimiento. Evapotranspiração.Agronomic responses to the use of agricultural inputs have been used in agriculture to identify the optimal level of nutrients to be supplied for high yield. This strategy helps to avoid economic losses and excessive application of fertilizers that has caused pollution of aquifers and soil degradation. The aim of the study was to evaluate water use efficiency, agronomic efficiency of nitrogen, heat units and use of evapotranspiration in yield and its components in sunflowers under hot climate conditions in function of nitrogen fertilizer application during two sowing season. The experiment was conducted in the field. The treatments were two sowing seasons and three levels of nitrogen fertilizer application and one control: 0, 60, 80 and 120 kg N ha-1. The nitrogen source was urea. The experimental design was complete random blocks with factorial array and four replications. The occurrence of cv. Cobalto sunflower phenological stages were not modified by the treatments. Urea favored agronomic efficiency and water use efficiency. Yield components were modified positively, with increasing receptacle area, 100-grain weight, and grain yield per receptacle. Application of nitrogen fertilizer favored sunflower development, although environmental conditions are of critical importance as demonstrated by a clear interaction between the yield response to fertilizer application and the environment where the plants grew.jjjjAs respostas agronómicas ao uso dos insumos agrícolas, têm sido usados na agricultura para identificar o nível óptimo de fornecimento de nutrimentos para um alto rendimento, estratégia que ajuda a evitar perdas económicas, e a evitar o excessivo aplicativo de fertilizantes que têm provocado contaminação de mantos acuíferos e degradação do solos. O objetivo do estudo foi avaliar a eficiência no uso da água, eficiência agronômica do nitrogênio, unidades calor e uso da evapotranspiração no rendimento e componentes do rendimento de girassol em condições quentes em duas épocas de cultivo em função da fertilização de nitrógeno. Foi realizada no campo em condições experimentais. Os tratamentos consistiram em duas épocas e três níveis de aplicação de fertilização nitrogenada e um controle de 0, 60 80 e 120 kg N ha-1, sendo usado como fonte de nitrogênio uréia. O delineamento experimental foi blocos completos randomizados, com arranjo fatorial e quatro repetições. A ocorrência de estádios fenológicos em cv de girassol. O cobalto não foi modificado pela aplicação de tratamentos. A aplicação de uréia, favoreceu a eficiência agronômica e eficiência no uso da água, modificou positivamente os componentes do rendimento aumentando a área do capítulo, o peso de 100 grãos e o rendimento de grãos por capítulo. A adubação nitrogenada se manifestou em favor do girassol, embora as condições ambientais sejam de importância crítica, como demonstrado em uma clara interação entre a resposta ao rendimento e a fertilização e o ambiente onde foi desenvolvido.Universidade Federal Rural do Semi-Árido2018-10-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/728410.1590/1983-21252018v31n409rcREVISTA CAATINGA; Vol. 31 No. 4 (2018); 871-881Revista Caatinga; v. 31 n. 4 (2018); 871-8811983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/7284/9856Copyright (c) 2018 Revista Caatingainfo:eu-repo/semantics/openAccessMartinez, Rafael DelgadoPoot, Wilberth Alfredo PootNava, Sergio CastroMartínez, Ma Teresa de Jesús SeguraOrtega, Miguel Emilio Moreno2023-07-20T13:52:23Zoai:ojs.periodicos.ufersa.edu.br:article/7284Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:34.451959Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true
dc.title.none.fl_str_mv YIELD AND AGRONOMIC EFFICIENCY OF SUNFLOWER IN RESPONSE TO NITROGEN FERTILIZER APPLICATION AND SOWING SEASON
fff
PRODUÇÃO E EFICIÊNCIA AGRONOMICO DO GIRASSOL NA RESPOSTA À FERTILIZAÇÃO DE NITRÓGENO E À ÉPOCAS DE CULTIVO
title YIELD AND AGRONOMIC EFFICIENCY OF SUNFLOWER IN RESPONSE TO NITROGEN FERTILIZER APPLICATION AND SOWING SEASON
spellingShingle YIELD AND AGRONOMIC EFFICIENCY OF SUNFLOWER IN RESPONSE TO NITROGEN FERTILIZER APPLICATION AND SOWING SEASON
Martinez, Rafael Delgado
Water use efficiency. Agronomy efficiency. Yield. Evapotranspiration.
Eficiência no uso do água. Eficiência agronômica. Rendimiento. Evapotranspiração.
title_short YIELD AND AGRONOMIC EFFICIENCY OF SUNFLOWER IN RESPONSE TO NITROGEN FERTILIZER APPLICATION AND SOWING SEASON
title_full YIELD AND AGRONOMIC EFFICIENCY OF SUNFLOWER IN RESPONSE TO NITROGEN FERTILIZER APPLICATION AND SOWING SEASON
title_fullStr YIELD AND AGRONOMIC EFFICIENCY OF SUNFLOWER IN RESPONSE TO NITROGEN FERTILIZER APPLICATION AND SOWING SEASON
title_full_unstemmed YIELD AND AGRONOMIC EFFICIENCY OF SUNFLOWER IN RESPONSE TO NITROGEN FERTILIZER APPLICATION AND SOWING SEASON
title_sort YIELD AND AGRONOMIC EFFICIENCY OF SUNFLOWER IN RESPONSE TO NITROGEN FERTILIZER APPLICATION AND SOWING SEASON
author Martinez, Rafael Delgado
author_facet Martinez, Rafael Delgado
Poot, Wilberth Alfredo Poot
Nava, Sergio Castro
Martínez, Ma Teresa de Jesús Segura
Ortega, Miguel Emilio Moreno
author_role author
author2 Poot, Wilberth Alfredo Poot
Nava, Sergio Castro
Martínez, Ma Teresa de Jesús Segura
Ortega, Miguel Emilio Moreno
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Martinez, Rafael Delgado
Poot, Wilberth Alfredo Poot
Nava, Sergio Castro
Martínez, Ma Teresa de Jesús Segura
Ortega, Miguel Emilio Moreno
dc.subject.por.fl_str_mv Water use efficiency. Agronomy efficiency. Yield. Evapotranspiration.
Eficiência no uso do água. Eficiência agronômica. Rendimiento. Evapotranspiração.
topic Water use efficiency. Agronomy efficiency. Yield. Evapotranspiration.
Eficiência no uso do água. Eficiência agronômica. Rendimiento. Evapotranspiração.
description Agronomic responses to the use of agricultural inputs have been used in agriculture to identify the optimal level of nutrients to be supplied for high yield. This strategy helps to avoid economic losses and excessive application of fertilizers that has caused pollution of aquifers and soil degradation. The aim of the study was to evaluate water use efficiency, agronomic efficiency of nitrogen, heat units and use of evapotranspiration in yield and its components in sunflowers under hot climate conditions in function of nitrogen fertilizer application during two sowing season. The experiment was conducted in the field. The treatments were two sowing seasons and three levels of nitrogen fertilizer application and one control: 0, 60, 80 and 120 kg N ha-1. The nitrogen source was urea. The experimental design was complete random blocks with factorial array and four replications. The occurrence of cv. Cobalto sunflower phenological stages were not modified by the treatments. Urea favored agronomic efficiency and water use efficiency. Yield components were modified positively, with increasing receptacle area, 100-grain weight, and grain yield per receptacle. Application of nitrogen fertilizer favored sunflower development, although environmental conditions are of critical importance as demonstrated by a clear interaction between the yield response to fertilizer application and the environment where the plants grew.
publishDate 2018
dc.date.none.fl_str_mv 2018-10-17
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://periodicos.ufersa.edu.br/caatinga/article/view/7284
10.1590/1983-21252018v31n409rc
url https://periodicos.ufersa.edu.br/caatinga/article/view/7284
identifier_str_mv 10.1590/1983-21252018v31n409rc
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/7284/9856
dc.rights.driver.fl_str_mv Copyright (c) 2018 Revista Caatinga
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Revista Caatinga
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
dc.source.none.fl_str_mv REVISTA CAATINGA; Vol. 31 No. 4 (2018); 871-881
Revista Caatinga; v. 31 n. 4 (2018); 871-881
1983-2125
0100-316X
reponame:Revista Caatinga
instname:Universidade Federal Rural do Semi-Árido (UFERSA)
instacron:UFERSA
instname_str Universidade Federal Rural do Semi-Árido (UFERSA)
instacron_str UFERSA
institution UFERSA
reponame_str Revista Caatinga
collection Revista Caatinga
repository.name.fl_str_mv Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)
repository.mail.fl_str_mv patricio@ufersa.edu.br|| caatinga@ufersa.edu.br
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