| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
|
Data corrente: |
12/12/2012 |
|
Data da última atualização: |
16/02/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
ARAUJO, L. C.; SANTOS, P. M.; RODRIGUEZ, D.; PEZZOPANE, J. R. M.; OLIVEIRA, P. P. A.; CRUZ, P. G. |
|
Afiliação: |
LEANDRO C. ARAUJO, ZOOTECNIA EALQ/PIRACICABA; PATRICIA MENEZES SANTOS, CPPSE; DANIEL RODRIGUEZ, Univ. of Queensland; JOSE RICARDO MACEDO PEZZOPANE, CPPSE; PATRICIA PERONDI ANCHAO OLIVEIRA, CPPSE; PEDRO G. CRUZ, ESALQ/PIRACICABA. |
|
Título: |
Simulating Guinea Grass production: empirical and mechanistic approaches. |
|
Ano de publicação: |
2013 |
|
Fonte/Imprenta: |
Agronomy Journal, v. 105, n. 1, 2013. |
|
Páginas: |
p. 61-69. |
|
DOI: |
https://doi.org/10.2134/agronj2012.0245 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Tropical grasses are economically important for cattle production in Brazil and accurate simulation models for tropical pastures can benefit forage researchers and farm managers improve tropical forage production systems. This research calibrated and validated four modeling approaches of contrasting complexity to simulate mass production of Guineagrass (Panicum maximum Jacq. cv. ?Mombaça?). The models included three empirical agro-climatic models [i.e. a cumulative degree-day (DDi), a photo-thermal-units (PUi), and a climatic growth index (CGIi)]; and a bio-physical simulation model i.e. APSIM-Growth. Data sets for calibration and independent validation included records of frequent above-ground dry matter production over the 2005-2006 and 2010-2011 growing seasons from three trials. All models performed well during calibration (R2 = 0.78 - 0.86; and coefficient of variation = 26 - 32.1%). During model validation the R2 varied between 0.69 and 0.78; the agreement index was between 0.88 and 0.93; the coefficient of variation between 37.6 and 50.2%; and the mean bias error between 6 and 470 kg ha-1. Even though all models were in agreement between simulated and observed results, APSIM-Growth was able to simulate Guineagrass production across a broader climate range, soils and management (i.e. nitrogen fertilization) conditions. |
|
Palavras-Chave: |
Guinegrass production; Tropical pasture. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
Marc: |
LEADER 02021naa a2200229 a 4500
001 1942184
005 2023-02-16
008 2013 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.2134/agronj2012.0245$2DOI
100 1 $aARAUJO, L. C.
245 $aSimulating Guinea Grass production$bempirical and mechanistic approaches.$h[electronic resource]
260 $c2013
300 $ap. 61-69.
520 $aTropical grasses are economically important for cattle production in Brazil and accurate simulation models for tropical pastures can benefit forage researchers and farm managers improve tropical forage production systems. This research calibrated and validated four modeling approaches of contrasting complexity to simulate mass production of Guineagrass (Panicum maximum Jacq. cv. ?Mombaça?). The models included three empirical agro-climatic models [i.e. a cumulative degree-day (DDi), a photo-thermal-units (PUi), and a climatic growth index (CGIi)]; and a bio-physical simulation model i.e. APSIM-Growth. Data sets for calibration and independent validation included records of frequent above-ground dry matter production over the 2005-2006 and 2010-2011 growing seasons from three trials. All models performed well during calibration (R2 = 0.78 - 0.86; and coefficient of variation = 26 - 32.1%). During model validation the R2 varied between 0.69 and 0.78; the agreement index was between 0.88 and 0.93; the coefficient of variation between 37.6 and 50.2%; and the mean bias error between 6 and 470 kg ha-1. Even though all models were in agreement between simulated and observed results, APSIM-Growth was able to simulate Guineagrass production across a broader climate range, soils and management (i.e. nitrogen fertilization) conditions.
653 $aGuinegrass production
653 $aTropical pasture
700 1 $aSANTOS, P. M.
700 1 $aRODRIGUEZ, D.
700 1 $aPEZZOPANE, J. R. M.
700 1 $aOLIVEIRA, P. P. A.
700 1 $aCRUZ, P. G.
773 $tAgronomy Journal$gv. 105, n. 1, 2013.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Arroz e Feijão. |
|
Data corrente: |
28/09/2004 |
|
Data da última atualização: |
01/04/2011 |
|
Autoria: |
ALZATE-MARIN, A. L.; SARTORATO, A. |
|
Título: |
Analysis of the pathogenic variability of Colletotrichum lindemuthianum in Brazil. |
|
Ano de publicação: |
2004 |
|
Fonte/Imprenta: |
Annual Report of the Bean Improvement Cooperative, East Lansing, v. 47, p. 241-242, Mar. 2004. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The main goal of this work was to identify, among the Colletotrichum lindemuthianum differential cultivars, those with most ample resistance spectra for this pathogen in Brazil. |
|
Thesagro: |
Antracnose; Colletotrichum Lindemuthianum; Doença; Feijão; Fungo; Phaseolus Vulgaris. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/31158/1/BIC200403.pdf
|
|
Marc: |
LEADER 00791naa a2200205 a 4500
001 1212500
005 2011-04-01
008 2004 bl uuuu u00u1 u #d
100 1 $aALZATE-MARIN, A. L.
245 $aAnalysis of the pathogenic variability of Colletotrichum lindemuthianum in Brazil.
260 $c2004
520 $aThe main goal of this work was to identify, among the Colletotrichum lindemuthianum differential cultivars, those with most ample resistance spectra for this pathogen in Brazil.
650 $aAntracnose
650 $aColletotrichum Lindemuthianum
650 $aDoença
650 $aFeijão
650 $aFungo
650 $aPhaseolus Vulgaris
700 1 $aSARTORATO, A.
773 $tAnnual Report of the Bean Improvement Cooperative, East Lansing$gv. 47, p. 241-242, Mar. 2004.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
