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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
29/01/2019 |
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Data da última atualização: |
09/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEZZOPANE, J. R. M.; BERNARDI, A. C. de C.; BOSI, C.; CRIPPA, P. H.; SANTOS, P. M.; NARDACHIONE, E. C. |
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Afiliação: |
JOSE RICARDO MACEDO PEZZOPANE, CPPSE; ALBERTO CARLOS DE CAMPOS BERNARDI, CPPSE; Cristiam Bosi, USP/Escola Superior de Agricultura Luiz de Queiroz; Paulo Henrique Crippa, USP/Faculdade de Zootecnia e Engenharia de Alimentos; PATRICIA MENEZES SANTOS, CPPSE; Estefânia Cereda Nardachione, USP/Faculdade de Zootecnia e Engenharia de Alimentos. |
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Título: |
Assessment of Piatã palisadegrass forage mass in integrated livestock production systems using a proximal canopy reflectance sensor. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
European Journal of Agronomy, v. 103, p. 130-139, 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
Estimates of forage mass can help in decision making for pasture management and stocking rate adjustment in pastoral systems. This study aimed to estimate Piatã palisadegrass forage mass under full sun and shaded livestock production systems using vegetation indexes obtained with a proximal canopy reflectance sensor. Pasture canopy reflectance was measured at three fractions of the radiation spectrum (670, 720, and 760 nm). Total forage mass, morphological composition, and leaf area index (LAI) were assessed at the same time as reflectance in all production systems. Reflectance data were used to calculate vegetation indexes (normalized difference vegetation index ? NDVI, normalized difference red edge ? NDVI_RE, simple ratio index ? SRI, modified simple ratio ? MSR, and chlorophyll index) for each assessment. Linear and exponential regression analyses between vegetation indexes and total forage mass, leaf+stem mass, leaf mass, and LAI were performed. The equations generated by these analyses were used to estimate such pasture variables. The best estimates of leaf+stem mass, leaf mass, and LAI were obtained using SRI (R2 between 0.55 and 0.84) for the full sun systems, MSR (R2 from 0.67 to 0.93) for the shaded systems, and NDVI (R2 between 0.65 and 0.91) when all systems were analyzed together. These pasture variables can be estimated by general equations developed for both full sun and shaded livestock production systems. However, total forage mass estimates were less efficient (R2 of 0.03?0.53), due to differences in canopy structure and senescent material content between production systems. MenosEstimates of forage mass can help in decision making for pasture management and stocking rate adjustment in pastoral systems. This study aimed to estimate Piatã palisadegrass forage mass under full sun and shaded livestock production systems using vegetation indexes obtained with a proximal canopy reflectance sensor. Pasture canopy reflectance was measured at three fractions of the radiation spectrum (670, 720, and 760 nm). Total forage mass, morphological composition, and leaf area index (LAI) were assessed at the same time as reflectance in all production systems. Reflectance data were used to calculate vegetation indexes (normalized difference vegetation index ? NDVI, normalized difference red edge ? NDVI_RE, simple ratio index ? SRI, modified simple ratio ? MSR, and chlorophyll index) for each assessment. Linear and exponential regression analyses between vegetation indexes and total forage mass, leaf+stem mass, leaf mass, and LAI were performed. The equations generated by these analyses were used to estimate such pasture variables. The best estimates of leaf+stem mass, leaf mass, and LAI were obtained using SRI (R2 between 0.55 and 0.84) for the full sun systems, MSR (R2 from 0.67 to 0.93) for the shaded systems, and NDVI (R2 between 0.65 and 0.91) when all systems were analyzed together. These pasture variables can be estimated by general equations developed for both full sun and shaded livestock production systems. However, total forage mass estimates were less effici... Mostrar Tudo |
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Palavras-Chave: |
Capim Piatã; Forage mass; ILPF; Piatã palisadegrass forage. |
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Thesagro: |
Pastagem; Sombreamento. |
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Thesaurus Nal: |
Pastures. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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Marc: |
LEADER 02420naa a2200265 a 4500
001 2104948
005 2023-11-09
008 2019 bl uuuu u00u1 u #d
100 1 $aPEZZOPANE, J. R. M.
245 $aAssessment of Piatã palisadegrass forage mass in integrated livestock production systems using a proximal canopy reflectance sensor.$h[electronic resource]
260 $c2019
520 $aEstimates of forage mass can help in decision making for pasture management and stocking rate adjustment in pastoral systems. This study aimed to estimate Piatã palisadegrass forage mass under full sun and shaded livestock production systems using vegetation indexes obtained with a proximal canopy reflectance sensor. Pasture canopy reflectance was measured at three fractions of the radiation spectrum (670, 720, and 760 nm). Total forage mass, morphological composition, and leaf area index (LAI) were assessed at the same time as reflectance in all production systems. Reflectance data were used to calculate vegetation indexes (normalized difference vegetation index ? NDVI, normalized difference red edge ? NDVI_RE, simple ratio index ? SRI, modified simple ratio ? MSR, and chlorophyll index) for each assessment. Linear and exponential regression analyses between vegetation indexes and total forage mass, leaf+stem mass, leaf mass, and LAI were performed. The equations generated by these analyses were used to estimate such pasture variables. The best estimates of leaf+stem mass, leaf mass, and LAI were obtained using SRI (R2 between 0.55 and 0.84) for the full sun systems, MSR (R2 from 0.67 to 0.93) for the shaded systems, and NDVI (R2 between 0.65 and 0.91) when all systems were analyzed together. These pasture variables can be estimated by general equations developed for both full sun and shaded livestock production systems. However, total forage mass estimates were less efficient (R2 of 0.03?0.53), due to differences in canopy structure and senescent material content between production systems.
650 $aPastures
650 $aPastagem
650 $aSombreamento
653 $aCapim Piatã
653 $aForage mass
653 $aILPF
653 $aPiatã palisadegrass forage
700 1 $aBERNARDI, A. C. de C.
700 1 $aBOSI, C.
700 1 $aCRIPPA, P. H.
700 1 $aSANTOS, P. M.
700 1 $aNARDACHIONE, E. C.
773 $tEuropean Journal of Agronomy$gv. 103, p. 130-139, 2019.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
10/03/2000 |
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Data da última atualização: |
03/12/2019 |
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Autoria: |
MACEDO, A. C. B.; COUTO, L. F. C. dos; MAUES, M. M. |
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Afiliação: |
MARCIA MOTTA MAUES, CPATU. |
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Título: |
Aspectos da biologia reprodutiva de três especies florestais amazônicas: cumaru (Dipteryx odorata (Aubl) Wild. Leguminosae), marupa (Simarouba amara Aubl. Simaroubaceae) e sucupira do igapo (Diplotropis martiusii (Benth) Leguminosae). |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA FCAP, 9.; SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 3., 1999, Belém. Resumos. Belém: FCAP: Embrapa Amazônia Oriental, 1999. |
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Páginas: |
p. 128-130. |
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Idioma: |
Português |
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Palavras-Chave: |
Biologia reprodutiva; Biology; Diplotropis martiusii; Polinizador; Sucupira do igapo. |
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Thesagro: |
Cumaru; Dipteryx Odorata; Marupá; Polinização; Simarouba Amara. |
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Thesaurus NAL: |
pollination; pollinators; reproduction. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/206064/1/Aspectos-da-biologia-reprodutiva.pdf
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Marc: |
LEADER 01103nam a2200289 a 4500
001 1395126
005 2019-12-03
008 1999 bl uuuu u00u1 u #d
100 1 $aMACEDO, A. C. B.
245 $aAspectos da biologia reprodutiva de três especies florestais amazônicas$bcumaru (Dipteryx odorata (Aubl) Wild. Leguminosae), marupa (Simarouba amara Aubl. Simaroubaceae) e sucupira do igapo (Diplotropis martiusii (Benth) Leguminosae).
260 $aIn: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA FCAP, 9.; SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 3., 1999, Belém. Resumos. Belém: FCAP: Embrapa Amazônia Oriental$c1999
300 $ap. 128-130.
650 $apollination
650 $apollinators
650 $areproduction
650 $aCumaru
650 $aDipteryx Odorata
650 $aMarupá
650 $aPolinização
650 $aSimarouba Amara
653 $aBiologia reprodutiva
653 $aBiology
653 $aDiplotropis martiusii
653 $aPolinizador
653 $aSucupira do igapo
700 1 $aCOUTO, L. F. C. dos
700 1 $aMAUES, M. M.
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Embrapa Amazônia Oriental (CPATU) |
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