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Registro Completo |
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
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Data corrente: |
20/06/2017 |
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Data da última atualização: |
25/10/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALMEIDA, R. E. M. de; FAVARIN, J. L.; OTTO, R.; PIEROZAN JUNIOR, C.; OLIVEIRA, S. M. de; TEZOTTO, T.; LAGO, B. C. |
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Afiliação: |
RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; JOSE LAERCIO FAVARIN, ESALQ; RAFAEL OTTO, ESALQ; CLOVIS PIEROZAN JUNIOR, ESALQ; SILAS MACIEL DE OLIVEIRA, ESALQ; TIAGO TEZOTTO, ESALQ; BRUNO COCCO LAGO, ESALQ. |
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Título: |
Effects of nitrogen fertilization on yield components in a corn-palisadegrass intercropping system. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Australian Journal of Crop Science, v. 11, n. 3, p. 352-359, 2017. |
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ISSN: |
1835-2707 |
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DOI: |
10.21475/ajcs.17.11.03.pne273 |
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Idioma: |
Inglês |
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Conteúdo: |
Pasture and grain crop intercropping is considered an alternative for increasing biomass production during the winter periods in Brazil for the establishment of no-tillage systems. We studied nitrogen (N) fertilization rates in a corn-palisadegrass intercropping system that would allow both corn and biomass production without a reduction in corn yield. A field trial was carried out in São Desidério, Bahia - Brazil using a complete block experimental design with a 5 x 2 factorial layout with two factors: N rate (control, 50, 100, 150, and 200 kg ha-1 N) and two cropping systems (corn with or without palisadegrass). Both corn and palisadegrass were sown simultaneously with N fertilizer applied at sowing. The measurements included corn biomass, grain yield and N uptake. In addition, palisadegrass biomass was assessed at corn harvest and at three consecutive times during the winter. There was an interaction between N rates and the intercropping system. Grain yield was affected by intercropping when N fertilizer rates were lower than 100 kg ha-1, but above that rate, corn grain yield reached 10,000 kg ha-1 and was similar with or without palisadegrass. Nitrogen fertilizers also positively affected corn N uptake. There was no residual effect of N fertilization on palisadegrass biomass production during the sampling periods. However, the biomass of the palisadegrass increased during the winter period and reached 5,000 kg ha-1 of dry matter by the following season. There was no corn yield reduction when corn was intercropped with palisadegrass using nitrogen rates above 100 kg ha-1. In addition, it is possible to increase biomass production for the establishment of no-tillage systems in Brazil. MenosPasture and grain crop intercropping is considered an alternative for increasing biomass production during the winter periods in Brazil for the establishment of no-tillage systems. We studied nitrogen (N) fertilization rates in a corn-palisadegrass intercropping system that would allow both corn and biomass production without a reduction in corn yield. A field trial was carried out in São Desidério, Bahia - Brazil using a complete block experimental design with a 5 x 2 factorial layout with two factors: N rate (control, 50, 100, 150, and 200 kg ha-1 N) and two cropping systems (corn with or without palisadegrass). Both corn and palisadegrass were sown simultaneously with N fertilizer applied at sowing. The measurements included corn biomass, grain yield and N uptake. In addition, palisadegrass biomass was assessed at corn harvest and at three consecutive times during the winter. There was an interaction between N rates and the intercropping system. Grain yield was affected by intercropping when N fertilizer rates were lower than 100 kg ha-1, but above that rate, corn grain yield reached 10,000 kg ha-1 and was similar with or without palisadegrass. Nitrogen fertilizers also positively affected corn N uptake. There was no residual effect of N fertilization on palisadegrass biomass production during the sampling periods. However, the biomass of the palisadegrass increased during the winter period and reached 5,000 kg ha-1 of dry matter by the following season. There was no corn... Mostrar Tudo |
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Palavras-Chave: |
Pasture establishment. |
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Thesagro: |
Cultivo intercalado; Fertilizante nitrogenado; Milho; Plantio direto. |
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Thesaurus Nal: |
Corn; Intercropping; No-tillage; Urea; Urochloa ruziziensis. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/160861/1/CNPASA-2017-ajcs.pdf
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Marc: |
LEADER 02700naa a2200337 a 4500
001 2071116
005 2017-10-25
008 2017 bl uuuu u00u1 u #d
022 $a1835-2707
024 7 $a10.21475/ajcs.17.11.03.pne273$2DOI
100 1 $aALMEIDA, R. E. M. de
245 $aEffects of nitrogen fertilization on yield components in a corn-palisadegrass intercropping system.$h[electronic resource]
260 $c2017
520 $aPasture and grain crop intercropping is considered an alternative for increasing biomass production during the winter periods in Brazil for the establishment of no-tillage systems. We studied nitrogen (N) fertilization rates in a corn-palisadegrass intercropping system that would allow both corn and biomass production without a reduction in corn yield. A field trial was carried out in São Desidério, Bahia - Brazil using a complete block experimental design with a 5 x 2 factorial layout with two factors: N rate (control, 50, 100, 150, and 200 kg ha-1 N) and two cropping systems (corn with or without palisadegrass). Both corn and palisadegrass were sown simultaneously with N fertilizer applied at sowing. The measurements included corn biomass, grain yield and N uptake. In addition, palisadegrass biomass was assessed at corn harvest and at three consecutive times during the winter. There was an interaction between N rates and the intercropping system. Grain yield was affected by intercropping when N fertilizer rates were lower than 100 kg ha-1, but above that rate, corn grain yield reached 10,000 kg ha-1 and was similar with or without palisadegrass. Nitrogen fertilizers also positively affected corn N uptake. There was no residual effect of N fertilization on palisadegrass biomass production during the sampling periods. However, the biomass of the palisadegrass increased during the winter period and reached 5,000 kg ha-1 of dry matter by the following season. There was no corn yield reduction when corn was intercropped with palisadegrass using nitrogen rates above 100 kg ha-1. In addition, it is possible to increase biomass production for the establishment of no-tillage systems in Brazil.
650 $aCorn
650 $aIntercropping
650 $aNo-tillage
650 $aUrea
650 $aUrochloa ruziziensis
650 $aCultivo intercalado
650 $aFertilizante nitrogenado
650 $aMilho
650 $aPlantio direto
653 $aPasture establishment
700 1 $aFAVARIN, J. L.
700 1 $aOTTO, R.
700 1 $aPIEROZAN JUNIOR, C.
700 1 $aOLIVEIRA, S. M. de
700 1 $aTEZOTTO, T.
700 1 $aLAGO, B. C.
773 $tAustralian Journal of Crop Science$gv. 11, n. 3, p. 352-359, 2017.
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Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
06/07/1999 |
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Data da última atualização: |
06/07/1999 |
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Autoria: |
FIGUEIREDO, G. R. de; SILVA, M. A.; MILAGRES, J. C. |
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Afiliação: |
EMBRAPA. Centro Nacional de Pesquisa de Gado de Corte (Campo Grande,MS). |
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Título: |
Estimativas de parametros geneticos e fenotipicos de pesos e ganhos de pesos de novilhos Nelore apos a desmama. II Estimativas de correlacoes geneticas e fenotipicas. |
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Ano de publicação: |
1977 |
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Fonte/Imprenta: |
In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 14., 1977, Recife. Anais... Recife: SBZ, 1977. |
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Páginas: |
p.64. |
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Idioma: |
Português |
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Notas: |
Resumo |
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Conteúdo: |
Os mesmos dados descritos no trabalho I foram utilizados para estimar as correlacoes geneticas e fenotipicas entre pesos a desmama, 365; 550 e 730 dias de idade e entre estes pesos e os ganhos de peso da desmama aos 365, dos 365 aos 550 e dos 550 aos 730 dias de idade, utilizando um modelo estatistico que incluia os efeitos de ano, estacao, ano x estacao, reprodutor, sexo e idade da mae. As correlacoes geneticas e fenotipicas encontradas neste estudo, entre peso a desmama, 365 e 550 dias, com peso aos 730 dias, foram respectivamente: 0,52 e 0,41; 0,90 e 0,71; 0,99 e 0,94, enquanto que aquelas entre ganho de peso dos 550 aos 730 dias com peso a desmama, 365 e 550 foram respectivamente: 0,17 e -0,27; 0,27 e 0,07; 0,89 e 0,49. As demais correlacoes, tanto geneticas como fenotipicas, entre pesos, e entre pesos e ganhos de pesp, apresentaram valores superiores aos acima mencionados . Em geral, as correlacoes geneticas foram maiores que as fenotipicas. Estes resultados sugerem que uma selecao aos 365 dias de idade, baseada em peso dos animais, proporcionaria tanto maiores pesos aos 730 dias quanto ganhos de peso dos 550 aos 730 dias de idade, comparada a uma selecao efetuada a desmama. |
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Palavras-Chave: |
Novilha Nelore. |
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Thesagro: |
Bovino; Ganho de Peso; Genética; Zootecnia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01945naa a2200229 a 4500
001 1318402
005 1999-07-06
008 1977 bl uuuu u00u1 u #d
100 1 $aFIGUEIREDO, G. R. de
245 $aEstimativas de parametros geneticos e fenotipicos de pesos e ganhos de pesos de novilhos Nelore apos a desmama. II Estimativas de correlacoes geneticas e fenotipicas.
260 $c1977
300 $ap.64.
500 $aResumo
520 $aOs mesmos dados descritos no trabalho I foram utilizados para estimar as correlacoes geneticas e fenotipicas entre pesos a desmama, 365; 550 e 730 dias de idade e entre estes pesos e os ganhos de peso da desmama aos 365, dos 365 aos 550 e dos 550 aos 730 dias de idade, utilizando um modelo estatistico que incluia os efeitos de ano, estacao, ano x estacao, reprodutor, sexo e idade da mae. As correlacoes geneticas e fenotipicas encontradas neste estudo, entre peso a desmama, 365 e 550 dias, com peso aos 730 dias, foram respectivamente: 0,52 e 0,41; 0,90 e 0,71; 0,99 e 0,94, enquanto que aquelas entre ganho de peso dos 550 aos 730 dias com peso a desmama, 365 e 550 foram respectivamente: 0,17 e -0,27; 0,27 e 0,07; 0,89 e 0,49. As demais correlacoes, tanto geneticas como fenotipicas, entre pesos, e entre pesos e ganhos de pesp, apresentaram valores superiores aos acima mencionados . Em geral, as correlacoes geneticas foram maiores que as fenotipicas. Estes resultados sugerem que uma selecao aos 365 dias de idade, baseada em peso dos animais, proporcionaria tanto maiores pesos aos 730 dias quanto ganhos de peso dos 550 aos 730 dias de idade, comparada a uma selecao efetuada a desmama.
650 $aBovino
650 $aGanho de Peso
650 $aGenética
650 $aZootecnia
653 $aNovilha Nelore
700 1 $aSILVA, M. A.
700 1 $aMILAGRES, J. C.
773 $tIn: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 14., 1977, Recife. Anais... Recife: SBZ, 1977.
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Embrapa Gado de Corte (CNPGC) |
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