Effects of row spacing and nitrogen topdressing fertilization on the yield of upland rice in a no-tillage system.
Autor(a) principal: | |
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Data de Publicação: | 2016 |
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/1052365 |
Resumo: | This study aimed to evaluate the effect of row spacing and nitrogen topdressing fertilization of two materials (genotype 07SEQCL441 CL and cultivar BRS Esmeralda) on the plant height, yield components, grain yield, and quality of an upland rice crop grown in a no-tillage system. Trials were conducted for two growing seasons under field conditions in a 3 x 4 factorial, randomized, complete block design, with four replications. For each material, treatments consisted of the combination of row spacing (0.225, 0.35, and 0.45 m) with nitrogen (N) applied as topdressing (0, 50, 100, and 150 kg ha-1). The lowest row spacing (0.225 m) for genotypes 07SEQCL441 CL and BRS Esmeralda provided a higher number of tillers, number of panicles m-2, and grain yield of rice. Increasing rates of N in the topdressing improved the rice grain yield for both cultivars, but for 07SEQCL441 CL, the grain yield was positively affected only to applications up to 50 kg N ha-1. Row spacing and N rates did not affect the rice grain quality. Therefore, these results indicate that the narrowest row spacing used (0.225 m) with N fertilization as topdressing increased the rice grain yield most in the no-tillage system. |
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Effects of row spacing and nitrogen topdressing fertilization on the yield of upland rice in a no-tillage system.ArrozOryza sativaPlantio diretoCerradoNitrogênioPopulação de plantaThis study aimed to evaluate the effect of row spacing and nitrogen topdressing fertilization of two materials (genotype 07SEQCL441 CL and cultivar BRS Esmeralda) on the plant height, yield components, grain yield, and quality of an upland rice crop grown in a no-tillage system. Trials were conducted for two growing seasons under field conditions in a 3 x 4 factorial, randomized, complete block design, with four replications. For each material, treatments consisted of the combination of row spacing (0.225, 0.35, and 0.45 m) with nitrogen (N) applied as topdressing (0, 50, 100, and 150 kg ha-1). The lowest row spacing (0.225 m) for genotypes 07SEQCL441 CL and BRS Esmeralda provided a higher number of tillers, number of panicles m-2, and grain yield of rice. Increasing rates of N in the topdressing improved the rice grain yield for both cultivars, but for 07SEQCL441 CL, the grain yield was positively affected only to applications up to 50 kg N ha-1. Row spacing and N rates did not affect the rice grain quality. Therefore, these results indicate that the narrowest row spacing used (0.225 m) with N fertilization as topdressing increased the rice grain yield most in the no-tillage system.MABIO CHRISLEY LACERDA, CNPAF; ADRIANO STEPHAN NASCENTE, CNPAF.LACERDA, M. C.NASCENTE, A. S.2016-09-05T11:11:11Z2016-09-05T11:11:11Z2016-09-0520162016-09-28T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleActa Scientiarum. Agronomy, Maringá, v. 38, n. 4, p. 493-502, oct./dec. 2016.1807-8621http://www.alice.cnptia.embrapa.br/alice/handle/doc/105236510.4025/actasciagron.v38i4.30855enginfo: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:EMBRAPA2017-08-16T02:36:28Zoai:www.alice.cnptia.embrapa.br:doc/1052365Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T02:36:28falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T02:36:28Repositório 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 |
Effects of row spacing and nitrogen topdressing fertilization on the yield of upland rice in a no-tillage system. |
title |
Effects of row spacing and nitrogen topdressing fertilization on the yield of upland rice in a no-tillage system. |
spellingShingle |
Effects of row spacing and nitrogen topdressing fertilization on the yield of upland rice in a no-tillage system. LACERDA, M. C. Arroz Oryza sativa Plantio direto Cerrado Nitrogênio População de planta |
title_short |
Effects of row spacing and nitrogen topdressing fertilization on the yield of upland rice in a no-tillage system. |
title_full |
Effects of row spacing and nitrogen topdressing fertilization on the yield of upland rice in a no-tillage system. |
title_fullStr |
Effects of row spacing and nitrogen topdressing fertilization on the yield of upland rice in a no-tillage system. |
title_full_unstemmed |
Effects of row spacing and nitrogen topdressing fertilization on the yield of upland rice in a no-tillage system. |
title_sort |
Effects of row spacing and nitrogen topdressing fertilization on the yield of upland rice in a no-tillage system. |
author |
LACERDA, M. C. |
author_facet |
LACERDA, M. C. NASCENTE, A. S. |
author_role |
author |
author2 |
NASCENTE, A. S. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
MABIO CHRISLEY LACERDA, CNPAF; ADRIANO STEPHAN NASCENTE, CNPAF. |
dc.contributor.author.fl_str_mv |
LACERDA, M. C. NASCENTE, A. S. |
dc.subject.por.fl_str_mv |
Arroz Oryza sativa Plantio direto Cerrado Nitrogênio População de planta |
topic |
Arroz Oryza sativa Plantio direto Cerrado Nitrogênio População de planta |
description |
This study aimed to evaluate the effect of row spacing and nitrogen topdressing fertilization of two materials (genotype 07SEQCL441 CL and cultivar BRS Esmeralda) on the plant height, yield components, grain yield, and quality of an upland rice crop grown in a no-tillage system. Trials were conducted for two growing seasons under field conditions in a 3 x 4 factorial, randomized, complete block design, with four replications. For each material, treatments consisted of the combination of row spacing (0.225, 0.35, and 0.45 m) with nitrogen (N) applied as topdressing (0, 50, 100, and 150 kg ha-1). The lowest row spacing (0.225 m) for genotypes 07SEQCL441 CL and BRS Esmeralda provided a higher number of tillers, number of panicles m-2, and grain yield of rice. Increasing rates of N in the topdressing improved the rice grain yield for both cultivars, but for 07SEQCL441 CL, the grain yield was positively affected only to applications up to 50 kg N ha-1. Row spacing and N rates did not affect the rice grain quality. Therefore, these results indicate that the narrowest row spacing used (0.225 m) with N fertilization as topdressing increased the rice grain yield most in the no-tillage system. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-09-05T11:11:11Z 2016-09-05T11:11:11Z 2016-09-05 2016 2016-09-28T11:11:11Z |
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 |
Acta Scientiarum. Agronomy, Maringá, v. 38, n. 4, p. 493-502, oct./dec. 2016. 1807-8621 http://www.alice.cnptia.embrapa.br/alice/handle/doc/1052365 10.4025/actasciagron.v38i4.30855 |
identifier_str_mv |
Acta Scientiarum. Agronomy, Maringá, v. 38, n. 4, p. 493-502, oct./dec. 2016. 1807-8621 10.4025/actasciagron.v38i4.30855 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1052365 |
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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1794503424864157696 |