Productivity and efficiency of nitrogen fertilization in maize under different levels of urea and NBPT-treated urea
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Publication Date: | 2011 |
Other Authors: | , , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Institucional da UFLA |
Download full: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000300012 http://repositorio.ufla.br/jspui/handle/1/7408 |
Summary: | The management of nitrogen fertilization is complex due to the various transformations of the nitrogen that occur in the soil-plant-atmosphere system, reducing the efficiency of the fertilization, productivity and the profit margin of the maize production areas. This study aimed to evaluate the effect of different levels of common urea and urea treat with NBPT [N-(n-butyl) thiophosphoric triamide] on the productivity and efficiency of the nitrogen fertilization in maize, correlated with simple economic analysis. The design of the field experiment was in randomized complete blocks with six repetitions, in a 2 x 4 factorial outline, made up of by two sources of nitrogen (urea and NBPT-treated urea) and four levels of nitrogen as top dressing (60, 120, 180 and 240 kg ha-1). The sources and applied nitrogen levels influenced the productivity and the leaf and grain nitrogen contents, while the production components (size and diameter of the ear, and percentage of straw and cob) were not altered. The agronomic efficiency of the nitrogen fertilization decreased with the increase of the applied nitrogen levels. The highest gross profit margin in the maize culture is obtained with 180 kg ha-1 of nitrogen supplied in the NBPT-treated urea. |
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Productivity and efficiency of nitrogen fertilization in maize under different levels of urea and NBPT-treated ureaZea maysNitrogenUrease inhibitorAgronomic efficiencyGross profit marginThe management of nitrogen fertilization is complex due to the various transformations of the nitrogen that occur in the soil-plant-atmosphere system, reducing the efficiency of the fertilization, productivity and the profit margin of the maize production areas. This study aimed to evaluate the effect of different levels of common urea and urea treat with NBPT [N-(n-butyl) thiophosphoric triamide] on the productivity and efficiency of the nitrogen fertilization in maize, correlated with simple economic analysis. The design of the field experiment was in randomized complete blocks with six repetitions, in a 2 x 4 factorial outline, made up of by two sources of nitrogen (urea and NBPT-treated urea) and four levels of nitrogen as top dressing (60, 120, 180 and 240 kg ha-1). The sources and applied nitrogen levels influenced the productivity and the leaf and grain nitrogen contents, while the production components (size and diameter of the ear, and percentage of straw and cob) were not altered. The agronomic efficiency of the nitrogen fertilization decreased with the increase of the applied nitrogen levels. The highest gross profit margin in the maize culture is obtained with 180 kg ha-1 of nitrogen supplied in the NBPT-treated urea.Editora da Universidade Federal de Lavras2011-06-012015-04-30T13:36:10Z2015-04-30T13:36:10Z2015-04-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000300012SILVA, D. R. G. et al. Productivity and efficiency of nitrogen fertilization in maize under different levels of urea and NBPT-treated urea. Ciência e Agrotecnologia, Lavras, v. 35, n. 3, p. 516-523, maio 2011.http://repositorio.ufla.br/jspui/handle/1/7408Ciência e Agrotecnologia v.35 n.3 2011reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLASilva, Douglas Ramos GuelfiPereira, André FerreiraDourado, Ronaldo LiberatoSilva, Frederico Pinto daÁvila, Fabrício WilliamFaquin, Valdemarenginfo:eu-repo/semantics/openAccess2016-10-03T16:51:38Zoai:localhost:1/7408Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2016-10-03T16:51:38Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Productivity and efficiency of nitrogen fertilization in maize under different levels of urea and NBPT-treated urea |
title |
Productivity and efficiency of nitrogen fertilization in maize under different levels of urea and NBPT-treated urea |
spellingShingle |
Productivity and efficiency of nitrogen fertilization in maize under different levels of urea and NBPT-treated urea Silva, Douglas Ramos Guelfi Zea mays Nitrogen Urease inhibitor Agronomic efficiency Gross profit margin |
title_short |
Productivity and efficiency of nitrogen fertilization in maize under different levels of urea and NBPT-treated urea |
title_full |
Productivity and efficiency of nitrogen fertilization in maize under different levels of urea and NBPT-treated urea |
title_fullStr |
Productivity and efficiency of nitrogen fertilization in maize under different levels of urea and NBPT-treated urea |
title_full_unstemmed |
Productivity and efficiency of nitrogen fertilization in maize under different levels of urea and NBPT-treated urea |
title_sort |
Productivity and efficiency of nitrogen fertilization in maize under different levels of urea and NBPT-treated urea |
author |
Silva, Douglas Ramos Guelfi |
author_facet |
Silva, Douglas Ramos Guelfi Pereira, André Ferreira Dourado, Ronaldo Liberato Silva, Frederico Pinto da Ávila, Fabrício William Faquin, Valdemar |
author_role |
author |
author2 |
Pereira, André Ferreira Dourado, Ronaldo Liberato Silva, Frederico Pinto da Ávila, Fabrício William Faquin, Valdemar |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Silva, Douglas Ramos Guelfi Pereira, André Ferreira Dourado, Ronaldo Liberato Silva, Frederico Pinto da Ávila, Fabrício William Faquin, Valdemar |
dc.subject.por.fl_str_mv |
Zea mays Nitrogen Urease inhibitor Agronomic efficiency Gross profit margin |
topic |
Zea mays Nitrogen Urease inhibitor Agronomic efficiency Gross profit margin |
description |
The management of nitrogen fertilization is complex due to the various transformations of the nitrogen that occur in the soil-plant-atmosphere system, reducing the efficiency of the fertilization, productivity and the profit margin of the maize production areas. This study aimed to evaluate the effect of different levels of common urea and urea treat with NBPT [N-(n-butyl) thiophosphoric triamide] on the productivity and efficiency of the nitrogen fertilization in maize, correlated with simple economic analysis. The design of the field experiment was in randomized complete blocks with six repetitions, in a 2 x 4 factorial outline, made up of by two sources of nitrogen (urea and NBPT-treated urea) and four levels of nitrogen as top dressing (60, 120, 180 and 240 kg ha-1). The sources and applied nitrogen levels influenced the productivity and the leaf and grain nitrogen contents, while the production components (size and diameter of the ear, and percentage of straw and cob) were not altered. The agronomic efficiency of the nitrogen fertilization decreased with the increase of the applied nitrogen levels. The highest gross profit margin in the maize culture is obtained with 180 kg ha-1 of nitrogen supplied in the NBPT-treated urea. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-06-01 2015-04-30T13:36:10Z 2015-04-30T13:36:10Z 2015-04-30 |
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://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000300012 SILVA, D. R. G. et al. Productivity and efficiency of nitrogen fertilization in maize under different levels of urea and NBPT-treated urea. Ciência e Agrotecnologia, Lavras, v. 35, n. 3, p. 516-523, maio 2011. http://repositorio.ufla.br/jspui/handle/1/7408 |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000300012 http://repositorio.ufla.br/jspui/handle/1/7408 |
identifier_str_mv |
SILVA, D. R. G. et al. Productivity and efficiency of nitrogen fertilization in maize under different levels of urea and NBPT-treated urea. Ciência e Agrotecnologia, Lavras, v. 35, n. 3, p. 516-523, maio 2011. |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Editora da Universidade Federal de Lavras |
publisher.none.fl_str_mv |
Editora da Universidade Federal de Lavras |
dc.source.none.fl_str_mv |
Ciência e Agrotecnologia v.35 n.3 2011 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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1784550000864264192 |