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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
13/04/1999 |
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Data da última atualização: |
12/07/2010 |
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Autoria: |
OLIVEIRA, F. A. de. |
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Título: |
Efeito da adubação nitrogênio no índice da área foliar e na produvidade do arroz irrigado (Oriza sativa L.). |
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Ano de publicação: |
1979 |
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Fonte/Imprenta: |
Salvador: EPABA, 1979. |
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Páginas: |
6 p. |
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Série: |
(EPABA. Circular técnica, 030). |
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Idioma: |
Português |
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Palavras-Chave: |
Irrigated rice; Yilds. |
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Thesagro: |
Adubação; Arroz Irrigado; Oryza Sativa; Produtividade. |
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Thesaurus Nal: |
fertilizers. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00593nam a2200205 a 4500
001 1377627
005 2010-07-12
008 1979 bl uuuu u0uu1 u #d
100 1 $aOLIVEIRA, F. A. de
245 $aEfeito da adubação nitrogênio no índice da área foliar e na produvidade do arroz irrigado (Oriza sativa L.).
260 $aSalvador: EPABA$c1979
300 $a6 p.
490 $a(EPABA. Circular técnica, 030).
650 $afertilizers
650 $aAdubação
650 $aArroz Irrigado
650 $aOryza Sativa
650 $aProdutividade
653 $aIrrigated rice
653 $aYilds
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
10/01/2019 |
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Data da última atualização: |
30/01/2019 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
GREEN, T. R.; ERSKINE, R. H; DAVID, O.; KIPKA, H.; LIGHTHART, N.; McMASTER, G. S.; CRUZ, P. P. N. da; FIGUEIREDO, R. de O. |
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Afiliação: |
Timothy R. Green, USDA-ARS, Center for Agricultural Resources Research, Fort Collins, Colorado, USA; Robert H. Erskine, USDA-ARS, Center for Agricultural Resources Research, Fort Collins, Colorado, USA; Olaf David, Colorado State University, Fort Collins, CO, USA; HOLM KIPKA, Colorado State University, Fort Collins, CO, USA; Nathan Lighthart, Colorado State University, Fort Collins, CO, USA; Gregory S. McMaster, USDA-ARS, Center for Agricultural Resources Research, Fort Collins, Colorado, USA; Patricia Porta Nova da Cruz; RICARDO DE OLIVEIRA FIGUEIREDO, CNPMA. |
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Título: |
The Agricultural Ecosystems Services (AgES) watershed model is used to estimate the spatial complexity of soil hydraulic properties in a field-scale agricultural watershed, Colorado, USA. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
In: WORLD CONGRESS OF SOIL SCIENCE, 21., 2018, Rio de Janeiro. Soil science: beyond food and fuel: abstracts. Viçosa, MG: SBCS, 2018. Trabalho 1014. |
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Idioma: |
Português |
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Conteúdo: |
Soil hydraulic properties that control water storage flow rates can vary markedly in space, and surface layers may vary temporally due to management events, reconsolidation and biological activity. Field measurements are expensive to collect and generally reveal complex variability that is difficult to fully characterize. Yet, these soil properties are represented using model parameters that may strongly affect simulated flows and the distribution of soil water in space and time. Thus model calibration using available measurements of soil moisture and surface runoff is essential. Here, we address the level of calibration detail needed to estimate available data by using five levels of spatial complexity in the calibrated soil parameters. Results are also explored to address issues of spatial scaling. Furthermore, a new model component of temporal changes in soil porosity and saturated hydraulic conductivity is tested to simulate effects of tillage and soil consolidation related to rainfall. Interactions between spatial and temporal parameters and processes will be discussed in terms of their influences on simulated soil moisture patterns and surface runoff. Non-uniqueness of the estimated parameter sets is recognized, but further work is needed to better quantify the information content of data needed to infer unique space-time patterns of the estimated soil hydraulic properties. |
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Palavras-Chave: |
Agricultural watershed; Spatial variability; Temporal dynamics. |
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Thesaurus NAL: |
soil hydraulic properties. |
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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/190322/1/RA-FigueiredoRO-21WCSS-2018-Trabalho-1014.pdf
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Marc: |
LEADER 02335nam a2200241 a 4500
001 2103538
005 2019-01-30
008 2018 bl uuuu u00u1 u #d
100 1 $aGREEN, T. R.
245 $aThe Agricultural Ecosystems Services (AgES) watershed model is used to estimate the spatial complexity of soil hydraulic properties in a field-scale agricultural watershed, Colorado, USA.$h[electronic resource]
260 $aIn: WORLD CONGRESS OF SOIL SCIENCE, 21., 2018, Rio de Janeiro. Soil science: beyond food and fuel: abstracts. Viçosa, MG: SBCS, 2018. Trabalho 1014.$c1014
520 $aSoil hydraulic properties that control water storage flow rates can vary markedly in space, and surface layers may vary temporally due to management events, reconsolidation and biological activity. Field measurements are expensive to collect and generally reveal complex variability that is difficult to fully characterize. Yet, these soil properties are represented using model parameters that may strongly affect simulated flows and the distribution of soil water in space and time. Thus model calibration using available measurements of soil moisture and surface runoff is essential. Here, we address the level of calibration detail needed to estimate available data by using five levels of spatial complexity in the calibrated soil parameters. Results are also explored to address issues of spatial scaling. Furthermore, a new model component of temporal changes in soil porosity and saturated hydraulic conductivity is tested to simulate effects of tillage and soil consolidation related to rainfall. Interactions between spatial and temporal parameters and processes will be discussed in terms of their influences on simulated soil moisture patterns and surface runoff. Non-uniqueness of the estimated parameter sets is recognized, but further work is needed to better quantify the information content of data needed to infer unique space-time patterns of the estimated soil hydraulic properties.
650 $asoil hydraulic properties
653 $aAgricultural watershed
653 $aSpatial variability
653 $aTemporal dynamics
700 1 $aERSKINE, R. H
700 1 $aDAVID, O.
700 1 $aKIPKA, H.
700 1 $aLIGHTHART, N.
700 1 $aMcMASTER, G. S.
700 1 $aCRUZ, P. P. N. da
700 1 $aFIGUEIREDO, R. de O.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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