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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo; Embrapa Pesca e Aquicultura; Embrapa Soja. |
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Data corrente: |
14/05/2019 |
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Data da última atualização: |
14/02/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FARIA, I. K. P. de; VIEIRA, J. L. V.; TENELLI, S.; ALMEIDA, R. E. M. de; CAMPOS, L. J. M.; COSTA, R. V. da; ZAVASCHI, E.; ALMEIDA, R. F. de; CARNEIRO, L. de M. e S.; OTTO, R. |
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Afiliação: |
ITALO KAYE PINTO DE FARIA, ESALQ; JOSE LUIS VILELA VIEIRA, ESALQ; SARAH TENELLI, ESALQ; RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; LEONARDO JOSE MOTTA CAMPOS, CNPSO; RODRIGO VERAS DA COSTA, CNPMS; EDUARDO ZAVASCHI, ESALQ; RISELY FERRAZ DE ALMEIDA, ESALQ; LEANDRO DE MELLO E SILVA CARNEIRO, UNIVERSIDADE FEDERAL DE UBERLÂNDIA; RAFAEL OTTO, ESALQ. |
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Título: |
Optimal plant density and nitrogen rates for improving off-season corn yields in Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Scientia Agricola, v. 76, n. 4, p. 344-352, jul./ago. 2019. |
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ISSN: |
1678-992X |
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DOI: |
10.1590/1678-992X-2017-0295 |
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Idioma: |
Inglês |
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Conteúdo: |
Integrating plant density and nitrogen (N) management is a strategy for improving corn yields, especially for off-season corn production in the tropics. This study tested the hypothesis that increasing plant densities and N rates promotes yield gains for off-season corn production in high-yielding environments. The aim of the study was to investigate the yield performances of two hybrid versions (DKB PRO and DKB PRO3) submitted to three plant densities (55,000; 65,000 and 75,000 plants ha−1) and four N rates (control, 60, 120 and 180 kg ha−1 N). Field trials were undertaken at Uberlândia-MG (site1 and 2) and Pedro Afonso-TO (site 3), Brazil from which data on corn yield parameters were collected and analyzed. Multivariate analysis separated the three trial areas into two groups, presenting high (sites 1 and 2) and low yields (site 3), which were related to weather conditions. There was no influence of a hybrid version or plant densities on crop yields at site 1 or 2. In contrast, there was a positive response to increasing plant densities and the use of DKB PRO3 at site 3. A significant response to N was observed at sites 2 and 3, following a plateau model. Our results suggest that N application rates and plant densities do have the potential to increase off-season corn yields in low yielding environments. |
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Thesagro: |
Densidade de Plantio; Milho; Milho Hibrido; População de Planta; Zea Mays. |
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Thesaurus Nal: |
Corn; Hybrids; Population density. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/197326/1/CNPASA-2019-sa.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/197976/1/Faria-Optimal.pdf
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Marc: |
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001 2109019
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008 2019 bl uuuu u00u1 u #d
022 $a1678-992X
024 7 $a10.1590/1678-992X-2017-0295$2DOI
100 1 $aFARIA, I. K. P. de
245 $aOptimal plant density and nitrogen rates for improving off-season corn yields in Brazil.$h[electronic resource]
260 $c2019
520 $aIntegrating plant density and nitrogen (N) management is a strategy for improving corn yields, especially for off-season corn production in the tropics. This study tested the hypothesis that increasing plant densities and N rates promotes yield gains for off-season corn production in high-yielding environments. The aim of the study was to investigate the yield performances of two hybrid versions (DKB PRO and DKB PRO3) submitted to three plant densities (55,000; 65,000 and 75,000 plants ha−1) and four N rates (control, 60, 120 and 180 kg ha−1 N). Field trials were undertaken at Uberlândia-MG (site1 and 2) and Pedro Afonso-TO (site 3), Brazil from which data on corn yield parameters were collected and analyzed. Multivariate analysis separated the three trial areas into two groups, presenting high (sites 1 and 2) and low yields (site 3), which were related to weather conditions. There was no influence of a hybrid version or plant densities on crop yields at site 1 or 2. In contrast, there was a positive response to increasing plant densities and the use of DKB PRO3 at site 3. A significant response to N was observed at sites 2 and 3, following a plateau model. Our results suggest that N application rates and plant densities do have the potential to increase off-season corn yields in low yielding environments.
650 $aCorn
650 $aHybrids
650 $aPopulation density
650 $aDensidade de Plantio
650 $aMilho
650 $aMilho Hibrido
650 $aPopulação de Planta
650 $aZea Mays
700 1 $aVIEIRA, J. L. V.
700 1 $aTENELLI, S.
700 1 $aALMEIDA, R. E. M. de
700 1 $aCAMPOS, L. J. M.
700 1 $aCOSTA, R. V. da
700 1 $aZAVASCHI, E.
700 1 $aALMEIDA, R. F. de
700 1 $aCARNEIRO, L. de M. e S.
700 1 $aOTTO, R.
773 $tScientia Agricola$gv. 76, n. 4, p. 344-352, jul./ago. 2019.
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Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |
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| Registros recuperados : 1 | |
| 1. |  | FARIA, I. K. P. de; VIEIRA, J. L. V.; TENELLI, S.; ALMEIDA, R. E. M. de; CAMPOS, L. J. M.; COSTA, R. V. da; ZAVASCHI, E.; ALMEIDA, R. F. de; CARNEIRO, L. de M. e S.; OTTO, R. Optimal plant density and nitrogen rates for improving off-season corn yields in Brazil. Scientia Agricola, v. 76, n. 4, p. 344-352, jul./ago. 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Milho e Sorgo; Embrapa Pesca e Aquicultura; Embrapa Soja. |
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| Registros recuperados : 1 | |
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