Yield and yield components of upland rice as influenced by nitrogen sources.
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/910734 |
Resumo: | Ammonium sulfate and urea are main sources of nitrogen (N) for annual crop production in developing countries. Two greenhouse experiments were conducted using ammonium sulfate and urea as N sources for upland rice grown on a Brazilian Oxisol. The N rates used were 0, 50, 100, 150, 3000, and 400 kg N kg?1 of soil. Yield and yield components were significantly increased in a quadratic fashion with increasing N rate. Ammonium sulfate X urea interaction was significant for grain yield, shoot dry matter yield, panicle number, plant height and root dry weight, indicating a different response magnitude of these plant parameters to two sources of N. Based on regression equation, maximum grain yield was achieved with the application of 380 mg N kg?1 by ammonium sulfate and 271 mg N kg?1 by urea. Grain yield and yield components were reduced at higher rates of urea (>300 mg kg N) but these plant parameters? responses to ammonium sulfate at higher rates was constant. In the intermediate N rate range (125 to 275 mg kg?1), urea was slightly better compared to ammonium sulfate for grain yield. Grain yield was significantly related with plant height, shoot dry weight, panicle number, grain harvest index and root dry weight. Hence, improving these plant characteristics by using appropriate soil and plant management practices can improve upland rice yield. |
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Yield and yield components of upland rice as influenced by nitrogen sources.ArrozAmmonium sulfate and urea are main sources of nitrogen (N) for annual crop production in developing countries. Two greenhouse experiments were conducted using ammonium sulfate and urea as N sources for upland rice grown on a Brazilian Oxisol. The N rates used were 0, 50, 100, 150, 3000, and 400 kg N kg?1 of soil. Yield and yield components were significantly increased in a quadratic fashion with increasing N rate. Ammonium sulfate X urea interaction was significant for grain yield, shoot dry matter yield, panicle number, plant height and root dry weight, indicating a different response magnitude of these plant parameters to two sources of N. Based on regression equation, maximum grain yield was achieved with the application of 380 mg N kg?1 by ammonium sulfate and 271 mg N kg?1 by urea. Grain yield and yield components were reduced at higher rates of urea (>300 mg kg N) but these plant parameters? responses to ammonium sulfate at higher rates was constant. In the intermediate N rate range (125 to 275 mg kg?1), urea was slightly better compared to ammonium sulfate for grain yield. Grain yield was significantly related with plant height, shoot dry weight, panicle number, grain harvest index and root dry weight. Hence, improving these plant characteristics by using appropriate soil and plant management practices can improve upland rice yield.NAND KUMAR FAGERIA, CNPAF; ADONIS MOREIRA, CNPSO; ANTÔNIO MARCOS COELHO, CNPMS.FAGERIA, N. K.MOREIRA, A.COELHO, A. M.2011-12-22T11:11:11Z2011-12-22T11:11:11Z2011-12-2220112014-01-13T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleJournal of Plant Nutrition, London, v. 34, n. 3, p. 361-370, 2011.0190-4167http://www.alice.cnptia.embrapa.br/alice/handle/doc/91073410.1080/01904167.2011.536878enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T00:46:40Zoai:www.alice.cnptia.embrapa.br:doc/910734Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T00:46:40falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T00:46:40Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Yield and yield components of upland rice as influenced by nitrogen sources. |
title |
Yield and yield components of upland rice as influenced by nitrogen sources. |
spellingShingle |
Yield and yield components of upland rice as influenced by nitrogen sources. FAGERIA, N. K. Arroz |
title_short |
Yield and yield components of upland rice as influenced by nitrogen sources. |
title_full |
Yield and yield components of upland rice as influenced by nitrogen sources. |
title_fullStr |
Yield and yield components of upland rice as influenced by nitrogen sources. |
title_full_unstemmed |
Yield and yield components of upland rice as influenced by nitrogen sources. |
title_sort |
Yield and yield components of upland rice as influenced by nitrogen sources. |
author |
FAGERIA, N. K. |
author_facet |
FAGERIA, N. K. MOREIRA, A. COELHO, A. M. |
author_role |
author |
author2 |
MOREIRA, A. COELHO, A. M. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
NAND KUMAR FAGERIA, CNPAF; ADONIS MOREIRA, CNPSO; ANTÔNIO MARCOS COELHO, CNPMS. |
dc.contributor.author.fl_str_mv |
FAGERIA, N. K. MOREIRA, A. COELHO, A. M. |
dc.subject.por.fl_str_mv |
Arroz |
topic |
Arroz |
description |
Ammonium sulfate and urea are main sources of nitrogen (N) for annual crop production in developing countries. Two greenhouse experiments were conducted using ammonium sulfate and urea as N sources for upland rice grown on a Brazilian Oxisol. The N rates used were 0, 50, 100, 150, 3000, and 400 kg N kg?1 of soil. Yield and yield components were significantly increased in a quadratic fashion with increasing N rate. Ammonium sulfate X urea interaction was significant for grain yield, shoot dry matter yield, panicle number, plant height and root dry weight, indicating a different response magnitude of these plant parameters to two sources of N. Based on regression equation, maximum grain yield was achieved with the application of 380 mg N kg?1 by ammonium sulfate and 271 mg N kg?1 by urea. Grain yield and yield components were reduced at higher rates of urea (>300 mg kg N) but these plant parameters? responses to ammonium sulfate at higher rates was constant. In the intermediate N rate range (125 to 275 mg kg?1), urea was slightly better compared to ammonium sulfate for grain yield. Grain yield was significantly related with plant height, shoot dry weight, panicle number, grain harvest index and root dry weight. Hence, improving these plant characteristics by using appropriate soil and plant management practices can improve upland rice yield. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-12-22T11:11:11Z 2011-12-22T11:11:11Z 2011-12-22 2011 2014-01-13T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Journal of Plant Nutrition, London, v. 34, n. 3, p. 361-370, 2011. 0190-4167 http://www.alice.cnptia.embrapa.br/alice/handle/doc/910734 10.1080/01904167.2011.536878 |
identifier_str_mv |
Journal of Plant Nutrition, London, v. 34, n. 3, p. 361-370, 2011. 0190-4167 10.1080/01904167.2011.536878 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/910734 |
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.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503384938577920 |