Nitrogen top-dressing fertilization of maize cultivated in single and twin-row systems1
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/0034-737X202168010003 http://hdl.handle.net/11449/212523 |
Resumo: | The aim of this study was to evaluate the effects of cropping systems (single and twin-rows) and N fertilizer rates in the second top-dressing on the agronomic performance and relative economic returns of maize. The experiment was conducted in a randomized block design, with subplots and three repetitions. The plots were composed of two cropping systems: single and twin-rows. The subplots consisted of six rates of N fertilizer, applied in the second top-dressing fertilization in the V8 phenological stage (eight fully developed leaves) of maize: 0, 14, 28, 56, and 70 kg ha-1 of N. The first application of N top-dressing fertilization (rate of 140 kg ha-1 N) was during the V4 phenological stage (four fully developed leaves) in all treatments. The cropping system of twin-rows provides a higher grain yield and relative economic return of maize. The agronomic efficiency of the twin-row cropping system decreases with increasing N rates, but remains higher than that obtained in the single-row system, independent of the N fertilizer top-dressing rate.. The application of the second N top-dressing fertilization in the V8 phenological stage increases linearly with the grain yield and relative economic return of maize, independent of the cropping system. |
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Repositório Institucional da UNESP |
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Nitrogen top-dressing fertilization of maize cultivated in single and twin-row systems1Zea mays L.nitrogen ratestwin-rowsagronomic efficiency.The aim of this study was to evaluate the effects of cropping systems (single and twin-rows) and N fertilizer rates in the second top-dressing on the agronomic performance and relative economic returns of maize. The experiment was conducted in a randomized block design, with subplots and three repetitions. The plots were composed of two cropping systems: single and twin-rows. The subplots consisted of six rates of N fertilizer, applied in the second top-dressing fertilization in the V8 phenological stage (eight fully developed leaves) of maize: 0, 14, 28, 56, and 70 kg ha-1 of N. The first application of N top-dressing fertilization (rate of 140 kg ha-1 N) was during the V4 phenological stage (four fully developed leaves) in all treatments. The cropping system of twin-rows provides a higher grain yield and relative economic return of maize. The agronomic efficiency of the twin-row cropping system decreases with increasing N rates, but remains higher than that obtained in the single-row system, independent of the N fertilizer top-dressing rate.. The application of the second N top-dressing fertilization in the V8 phenological stage increases linearly with the grain yield and relative economic return of maize, independent of the cropping system.Universidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e VeterináriasUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e VeterináriasUniversidade Federal de ViçosaUniversidade Estadual Paulista (Unesp)Brame, Lucas José [UNESP]Coelho, Anderson Prates [UNESP]Leal, Fábio Tiraboschi [UNESP]Salvador, Almir [UNESP]Mingotte, Fábio Luiz Checchio [UNESP]Lemos, Leandro Borges [UNESP]2021-07-14T10:41:21Z2021-07-14T10:41:21Z2021-02-26info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article23-30application/pdfhttp://dx.doi.org/10.1590/0034-737X202168010003Revista Ceres. Universidade Federal de Viçosa, v. 68, n. 1, p. 23-30, 2021.0034-737Xhttp://hdl.handle.net/11449/21252310.1590/0034-737X202168010003S0034-737X2021000100023S0034-737X2021000100023.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Ceresinfo:eu-repo/semantics/openAccess2024-06-07T13:57:55Zoai:repositorio.unesp.br:11449/212523Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:42:25.908465Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Nitrogen top-dressing fertilization of maize cultivated in single and twin-row systems1 |
title |
Nitrogen top-dressing fertilization of maize cultivated in single and twin-row systems1 |
spellingShingle |
Nitrogen top-dressing fertilization of maize cultivated in single and twin-row systems1 Brame, Lucas José [UNESP] Zea mays L. nitrogen rates twin-rows agronomic efficiency. |
title_short |
Nitrogen top-dressing fertilization of maize cultivated in single and twin-row systems1 |
title_full |
Nitrogen top-dressing fertilization of maize cultivated in single and twin-row systems1 |
title_fullStr |
Nitrogen top-dressing fertilization of maize cultivated in single and twin-row systems1 |
title_full_unstemmed |
Nitrogen top-dressing fertilization of maize cultivated in single and twin-row systems1 |
title_sort |
Nitrogen top-dressing fertilization of maize cultivated in single and twin-row systems1 |
author |
Brame, Lucas José [UNESP] |
author_facet |
Brame, Lucas José [UNESP] Coelho, Anderson Prates [UNESP] Leal, Fábio Tiraboschi [UNESP] Salvador, Almir [UNESP] Mingotte, Fábio Luiz Checchio [UNESP] Lemos, Leandro Borges [UNESP] |
author_role |
author |
author2 |
Coelho, Anderson Prates [UNESP] Leal, Fábio Tiraboschi [UNESP] Salvador, Almir [UNESP] Mingotte, Fábio Luiz Checchio [UNESP] Lemos, Leandro Borges [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Brame, Lucas José [UNESP] Coelho, Anderson Prates [UNESP] Leal, Fábio Tiraboschi [UNESP] Salvador, Almir [UNESP] Mingotte, Fábio Luiz Checchio [UNESP] Lemos, Leandro Borges [UNESP] |
dc.subject.por.fl_str_mv |
Zea mays L. nitrogen rates twin-rows agronomic efficiency. |
topic |
Zea mays L. nitrogen rates twin-rows agronomic efficiency. |
description |
The aim of this study was to evaluate the effects of cropping systems (single and twin-rows) and N fertilizer rates in the second top-dressing on the agronomic performance and relative economic returns of maize. The experiment was conducted in a randomized block design, with subplots and three repetitions. The plots were composed of two cropping systems: single and twin-rows. The subplots consisted of six rates of N fertilizer, applied in the second top-dressing fertilization in the V8 phenological stage (eight fully developed leaves) of maize: 0, 14, 28, 56, and 70 kg ha-1 of N. The first application of N top-dressing fertilization (rate of 140 kg ha-1 N) was during the V4 phenological stage (four fully developed leaves) in all treatments. The cropping system of twin-rows provides a higher grain yield and relative economic return of maize. The agronomic efficiency of the twin-row cropping system decreases with increasing N rates, but remains higher than that obtained in the single-row system, independent of the N fertilizer top-dressing rate.. The application of the second N top-dressing fertilization in the V8 phenological stage increases linearly with the grain yield and relative economic return of maize, independent of the cropping system. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-07-14T10:41:21Z 2021-07-14T10:41:21Z 2021-02-26 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/0034-737X202168010003 Revista Ceres. Universidade Federal de Viçosa, v. 68, n. 1, p. 23-30, 2021. 0034-737X http://hdl.handle.net/11449/212523 10.1590/0034-737X202168010003 S0034-737X2021000100023 S0034-737X2021000100023.pdf |
url |
http://dx.doi.org/10.1590/0034-737X202168010003 http://hdl.handle.net/11449/212523 |
identifier_str_mv |
Revista Ceres. Universidade Federal de Viçosa, v. 68, n. 1, p. 23-30, 2021. 0034-737X 10.1590/0034-737X202168010003 S0034-737X2021000100023 S0034-737X2021000100023.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Ceres |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
23-30 application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Viçosa |
publisher.none.fl_str_mv |
Universidade Federal de Viçosa |
dc.source.none.fl_str_mv |
SciELO reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128240893558784 |