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Registro Completo |
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Algodão; Embrapa Cerrados. |
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Data corrente: |
15/08/1995 |
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Data da última atualização: |
15/08/1995 |
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Autoria: |
RUGGIERO, M. A. G.; LOPES, V. L. da R. |
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Título: |
Calculo numerico: aspectos teoricos e computacionais. |
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Ano de publicação: |
1988 |
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Fonte/Imprenta: |
Sao Paulo: Mcgraw-Hill, 1988. |
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Páginas: |
295p. |
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ISBN: |
0-07-450379-0 |
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Idioma: |
Português |
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Conteúdo: |
Erros; Zeros de funções reais; Resolução de sistemas lineares; Interpolação; Ajuste de curvas pelo método dos quadrados mínimos; Integração numérica; Soluções numéricas de equações diferenciais ordinarias. |
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Palavras-Chave: |
Calculo numerico; Matematica computacional; Programacao. |
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Thesagro: |
Programa de Computador. |
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Thesaurus Nal: |
computer software; mathematics. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00800nam a2200217 a 4500
001 1556085
005 1995-08-15
008 1988 bl uuuu 00u1 u #d
020 $a0-07-450379-0
100 1 $aRUGGIERO, M. A. G.
245 $aCalculo numerico$baspectos teoricos e computacionais.
260 $aSao Paulo: Mcgraw-Hill$c1988
300 $a295p.
520 $aErros; Zeros de funções reais; Resolução de sistemas lineares; Interpolação; Ajuste de curvas pelo método dos quadrados mínimos; Integração numérica; Soluções numéricas de equações diferenciais ordinarias.
650 $acomputer software
650 $amathematics
650 $aPrograma de Computador
653 $aCalculo numerico
653 $aMatematica computacional
653 $aProgramacao
700 1 $aLOPES, V. L. da R.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
11/01/2019 |
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Data da última atualização: |
11/01/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
GUTIÉRREZ, A. M.; RESENDE, A. V. de; SILVA, K. G. M.; MARTINS, D. C.; SIMÃO, E. de P.; MOREIRA, S. G.; FERREIRA, J. P. da C. |
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Afiliação: |
Aarón Martínez Gutiérrez, Universidade Federal de Viçosa; ALVARO VILELA DE RESENDE, CNPMS; Carine Gregorio Machado Silva, Universidade Federal de Lavras; Denize Carvalho Martins, Universidade Federal de Viçosa; Eduardo De Paula Simão, Universidade Federal de Viçosa; Silvino Guimarães Moreira, Universidade Federal de Lavras; Jose Paulo da Costa Ferreira, Universidade Federal de São João Del-Rei. |
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Título: |
Uptake and exportation of micronutrients by transgenic cultivars of maize under no-tillage in the Brazilian Cerrado. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Agricultural Science, Cambridge, v. 10 n. 9, p. 304-314, 2018. |
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DOI: |
10.5539/jas.v10n9p304 |
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Idioma: |
Inglês |
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Conteúdo: |
Introducing cultivars of high productive potential with adequate agronomic management has contributed to the increase of maize yield in Brazil. This study aimed to characterize the extraction and exportation of micronutrients by modern maize hybrids grown in no-tillage system in the Cerrado region (Brazilian Savannah) with two fertilization levels. We established two crop environments with differentiated levels of soil fertilization, use of products for seed treatment and leaf fertilization, in which four transgenic hybrids were grown. For each environment, we used an experimental design of randomized blocks with four replicates. There were eleven plant samplings during the crop cycle to quantify dry mass production and Cu, Fe, Mn and Zn extraction. Micronutrient uptake is increased when a hybrid with higher potential for biomass production grows in an environment with greater supply of nutrients. Uptake persists throughout the maize cycle, including during the final stages of the reproductive phase, showing late demand for the crop. On average, after tasseling, about 39, 50, 42, and 49% of the total Cu, Fe, Mn and Zn absorption still occurs, respectively. Total uptake of Cu, Fe, Mn and Zn are, respectively, around 8, 199, 58 and 40 g to produce a tonne of grain, from which 23, 5, 8, and 42% are exported by the harvest. Micronutrient uptake and exportation rates for the studied transgenic hybrids are lower than the ones previously reported in Brazil and in works abroad. Keywords MenosIntroducing cultivars of high productive potential with adequate agronomic management has contributed to the increase of maize yield in Brazil. This study aimed to characterize the extraction and exportation of micronutrients by modern maize hybrids grown in no-tillage system in the Cerrado region (Brazilian Savannah) with two fertilization levels. We established two crop environments with differentiated levels of soil fertilization, use of products for seed treatment and leaf fertilization, in which four transgenic hybrids were grown. For each environment, we used an experimental design of randomized blocks with four replicates. There were eleven plant samplings during the crop cycle to quantify dry mass production and Cu, Fe, Mn and Zn extraction. Micronutrient uptake is increased when a hybrid with higher potential for biomass production grows in an environment with greater supply of nutrients. Uptake persists throughout the maize cycle, including during the final stages of the reproductive phase, showing late demand for the crop. On average, after tasseling, about 39, 50, 42, and 49% of the total Cu, Fe, Mn and Zn absorption still occurs, respectively. Total uptake of Cu, Fe, Mn and Zn are, respectively, around 8, 199, 58 and 40 g to produce a tonne of grain, from which 23, 5, 8, and 42% are exported by the harvest. Micronutrient uptake and exportation rates for the studied transgenic hybrids are lower than the ones previously reported in Brazil and in works abroad. Keyw... Mostrar Tudo |
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Thesagro: |
Absorção; Exigência Nutricional; Rendimento; Zea Mays. |
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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/190272/1/Uptake-exportation.pdf
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Marc: |
LEADER 02303naa a2200253 a 4500
001 2103677
005 2019-01-11
008 2018 bl uuuu u00u1 u #d
024 7 $a10.5539/jas.v10n9p304$2DOI
100 1 $aGUTIÉRREZ, A. M.
245 $aUptake and exportation of micronutrients by transgenic cultivars of maize under no-tillage in the Brazilian Cerrado.$h[electronic resource]
260 $c2018
520 $aIntroducing cultivars of high productive potential with adequate agronomic management has contributed to the increase of maize yield in Brazil. This study aimed to characterize the extraction and exportation of micronutrients by modern maize hybrids grown in no-tillage system in the Cerrado region (Brazilian Savannah) with two fertilization levels. We established two crop environments with differentiated levels of soil fertilization, use of products for seed treatment and leaf fertilization, in which four transgenic hybrids were grown. For each environment, we used an experimental design of randomized blocks with four replicates. There were eleven plant samplings during the crop cycle to quantify dry mass production and Cu, Fe, Mn and Zn extraction. Micronutrient uptake is increased when a hybrid with higher potential for biomass production grows in an environment with greater supply of nutrients. Uptake persists throughout the maize cycle, including during the final stages of the reproductive phase, showing late demand for the crop. On average, after tasseling, about 39, 50, 42, and 49% of the total Cu, Fe, Mn and Zn absorption still occurs, respectively. Total uptake of Cu, Fe, Mn and Zn are, respectively, around 8, 199, 58 and 40 g to produce a tonne of grain, from which 23, 5, 8, and 42% are exported by the harvest. Micronutrient uptake and exportation rates for the studied transgenic hybrids are lower than the ones previously reported in Brazil and in works abroad. Keywords
650 $aAbsorção
650 $aExigência Nutricional
650 $aRendimento
650 $aZea Mays
700 1 $aRESENDE, A. V. de
700 1 $aSILVA, K. G. M.
700 1 $aMARTINS, D. C.
700 1 $aSIMÃO, E. de P.
700 1 $aMOREIRA, S. G.
700 1 $aFERREIRA, J. P. da C.
773 $tJournal of Agricultural Science, Cambridge$gv. 10 n. 9, p. 304-314, 2018.
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Embrapa Milho e Sorgo (CNPMS) |
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