Topdressed nitrogen fertilization on second-crop corn in soil with improved fertility
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Publication Date: | 2017 |
Other Authors: | , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Institucional da UFLA |
Download full: | http://repositorio.ufla.br/jspui/handle/1/32537 |
Summary: | The aim of this study was to evaluate the performance of sources and application rates of topdressed nitrogen (N) on second-crop corn following soybean in an improved fertility Latossolo in the region of Campos das Vertentes, MG. Brazil. A randomized block experimental design was used in a 4 x 5 +1 factorial arrangement, with four replications. The treatments consisted of the combination of four N sources via forms of urea: conventional urea (common urea), urea coated with 16% elemental sulfur (Urea+S), urea treated with base compound urease inhibitor with a 0.4% boron and 0.15% copper (Ureia+B+Cu), urea treated with 1.060 mg kg-1 of the urease inhibitor N-(n-butyl) thiophosphoric triamide (Urea+NBPT), and five application rates of N through urea: 30, 45, 60, 90, and 120 kg ha-1, plus an additional treatment without N supplied in topdressing. The N concentrations in the leaves and grain, the exported N, the mineral N in the soil (nitrate and ammonium), grain yield, and profitability were evaluated. The N sources increased the N concentrations in the leaves, in the grain, and the exported N. However, the grain yield and the N concentration in the soil did not vary in accordance with the sources of urea. Increasing application rates of N increase N concentration in the leaves and in the grain, exported N, grain yield, and the mineral N concentration in the soil up to a depth of 10 cm. Application of N in topdressing is not economically beneficial considering the final yield of the second-crop corn following soybean in a soil with improved fertility. |
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Topdressed nitrogen fertilization on second-crop corn in soil with improved fertilityNo-tillage systemSoil fertilityTopdressed nitrogenPlantio diretoFertilidade do soloAdubação nitrogenadaThe aim of this study was to evaluate the performance of sources and application rates of topdressed nitrogen (N) on second-crop corn following soybean in an improved fertility Latossolo in the region of Campos das Vertentes, MG. Brazil. A randomized block experimental design was used in a 4 x 5 +1 factorial arrangement, with four replications. The treatments consisted of the combination of four N sources via forms of urea: conventional urea (common urea), urea coated with 16% elemental sulfur (Urea+S), urea treated with base compound urease inhibitor with a 0.4% boron and 0.15% copper (Ureia+B+Cu), urea treated with 1.060 mg kg-1 of the urease inhibitor N-(n-butyl) thiophosphoric triamide (Urea+NBPT), and five application rates of N through urea: 30, 45, 60, 90, and 120 kg ha-1, plus an additional treatment without N supplied in topdressing. The N concentrations in the leaves and grain, the exported N, the mineral N in the soil (nitrate and ammonium), grain yield, and profitability were evaluated. The N sources increased the N concentrations in the leaves, in the grain, and the exported N. However, the grain yield and the N concentration in the soil did not vary in accordance with the sources of urea. Increasing application rates of N increase N concentration in the leaves and in the grain, exported N, grain yield, and the mineral N concentration in the soil up to a depth of 10 cm. Application of N in topdressing is not economically beneficial considering the final yield of the second-crop corn following soybean in a soil with improved fertility.Academic Journals2019-01-25T11:20:39Z2019-01-25T11:20:39Z2017-06-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfHICKMANN, C. et al. Topdressed nitrogen fertilization on second-crop corn in soil with improved fertility. African Journal of Agricultural Research, [S. l.], v. 12, n. 24, p. 2116-2124, 15 June 2017.http://repositorio.ufla.br/jspui/handle/1/32537African Journal of Agricultural Researchreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessHickmann, ClérioResende, Álvaro Vilela deLacerda, Julian Junio de JesusMoreira, Silvino GuimarãesAraújo, Breno Henriqueeng2019-01-25T11:20:39Zoai:localhost:1/32537Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-01-25T11:20:39Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Topdressed nitrogen fertilization on second-crop corn in soil with improved fertility |
title |
Topdressed nitrogen fertilization on second-crop corn in soil with improved fertility |
spellingShingle |
Topdressed nitrogen fertilization on second-crop corn in soil with improved fertility Hickmann, Clério No-tillage system Soil fertility Topdressed nitrogen Plantio direto Fertilidade do solo Adubação nitrogenada |
title_short |
Topdressed nitrogen fertilization on second-crop corn in soil with improved fertility |
title_full |
Topdressed nitrogen fertilization on second-crop corn in soil with improved fertility |
title_fullStr |
Topdressed nitrogen fertilization on second-crop corn in soil with improved fertility |
title_full_unstemmed |
Topdressed nitrogen fertilization on second-crop corn in soil with improved fertility |
title_sort |
Topdressed nitrogen fertilization on second-crop corn in soil with improved fertility |
author |
Hickmann, Clério |
author_facet |
Hickmann, Clério Resende, Álvaro Vilela de Lacerda, Julian Junio de Jesus Moreira, Silvino Guimarães Araújo, Breno Henrique |
author_role |
author |
author2 |
Resende, Álvaro Vilela de Lacerda, Julian Junio de Jesus Moreira, Silvino Guimarães Araújo, Breno Henrique |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Hickmann, Clério Resende, Álvaro Vilela de Lacerda, Julian Junio de Jesus Moreira, Silvino Guimarães Araújo, Breno Henrique |
dc.subject.por.fl_str_mv |
No-tillage system Soil fertility Topdressed nitrogen Plantio direto Fertilidade do solo Adubação nitrogenada |
topic |
No-tillage system Soil fertility Topdressed nitrogen Plantio direto Fertilidade do solo Adubação nitrogenada |
description |
The aim of this study was to evaluate the performance of sources and application rates of topdressed nitrogen (N) on second-crop corn following soybean in an improved fertility Latossolo in the region of Campos das Vertentes, MG. Brazil. A randomized block experimental design was used in a 4 x 5 +1 factorial arrangement, with four replications. The treatments consisted of the combination of four N sources via forms of urea: conventional urea (common urea), urea coated with 16% elemental sulfur (Urea+S), urea treated with base compound urease inhibitor with a 0.4% boron and 0.15% copper (Ureia+B+Cu), urea treated with 1.060 mg kg-1 of the urease inhibitor N-(n-butyl) thiophosphoric triamide (Urea+NBPT), and five application rates of N through urea: 30, 45, 60, 90, and 120 kg ha-1, plus an additional treatment without N supplied in topdressing. The N concentrations in the leaves and grain, the exported N, the mineral N in the soil (nitrate and ammonium), grain yield, and profitability were evaluated. The N sources increased the N concentrations in the leaves, in the grain, and the exported N. However, the grain yield and the N concentration in the soil did not vary in accordance with the sources of urea. Increasing application rates of N increase N concentration in the leaves and in the grain, exported N, grain yield, and the mineral N concentration in the soil up to a depth of 10 cm. Application of N in topdressing is not economically beneficial considering the final yield of the second-crop corn following soybean in a soil with improved fertility. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-15 2019-01-25T11:20:39Z 2019-01-25T11:20:39Z |
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 |
HICKMANN, C. et al. Topdressed nitrogen fertilization on second-crop corn in soil with improved fertility. African Journal of Agricultural Research, [S. l.], v. 12, n. 24, p. 2116-2124, 15 June 2017. http://repositorio.ufla.br/jspui/handle/1/32537 |
identifier_str_mv |
HICKMANN, C. et al. Topdressed nitrogen fertilization on second-crop corn in soil with improved fertility. African Journal of Agricultural Research, [S. l.], v. 12, n. 24, p. 2116-2124, 15 June 2017. |
url |
http://repositorio.ufla.br/jspui/handle/1/32537 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Academic Journals |
publisher.none.fl_str_mv |
Academic Journals |
dc.source.none.fl_str_mv |
African Journal of Agricultural Research reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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1784550037452226560 |