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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
20/04/2000 |
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Data da última atualização: |
24/01/2007 |
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Autoria: |
TUCCI, C. A. F.; FIGUEIREDO, A. F. de; SUZUKI, A. |
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Afiliação: |
UFAM; EMPASC. |
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Título: |
Efeito da calagem no ponto de carga zero de dois latossolos. |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
Revista da Universidade do Amazonas. Serie: Ciencias Agrarias, Manaus, v.2, n.2, p.53-62, jul./dez. 1993. |
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Idioma: |
Português |
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Conteúdo: |
Dois Latossolos Vermelho Amarelo, um de textura arenosa (LVAar) e outro argilosa (LVAa) receberam doses crescentes de calcario e os valores de pontos de carga zero foram determinados por dois metodos. No primeiro utilizou-se titulacao potenciometrica e no segundo a formula PCZ = 2xH KCI - pH H2O. Para o metodo titulometrico tambem foi avaliado o efeito do tempo de contacto solo: solucao. A aplicacao de calcario aumentou linearmente o PCZ para o solo LVAa, e para o LVAar nao houve resposta. A utilizacao da formula foi eficientte, para se estimular o PCZ, no solo LVAa. Tempos de contacto inferiores a 72 horas, nao apresentaram valores de PCZ consistentes. |
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Palavras-Chave: |
Brasil; Calcareus; Minas Gerais; Vicosa. |
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Thesagro: |
Calagem; Calcário; Latossolo. |
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Thesaurus Nal: |
Ferralsols; liming. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01343naa a2200253 a 4500
001 1668818
005 2007-01-24
008 1993 bl uuuu u00u1 u #d
100 1 $aTUCCI, C. A. F.
245 $aEfeito da calagem no ponto de carga zero de dois latossolos.
260 $c1993
520 $aDois Latossolos Vermelho Amarelo, um de textura arenosa (LVAar) e outro argilosa (LVAa) receberam doses crescentes de calcario e os valores de pontos de carga zero foram determinados por dois metodos. No primeiro utilizou-se titulacao potenciometrica e no segundo a formula PCZ = 2xH KCI - pH H2O. Para o metodo titulometrico tambem foi avaliado o efeito do tempo de contacto solo: solucao. A aplicacao de calcario aumentou linearmente o PCZ para o solo LVAa, e para o LVAar nao houve resposta. A utilizacao da formula foi eficientte, para se estimular o PCZ, no solo LVAa. Tempos de contacto inferiores a 72 horas, nao apresentaram valores de PCZ consistentes.
650 $aFerralsols
650 $aliming
650 $aCalagem
650 $aCalcário
650 $aLatossolo
653 $aBrasil
653 $aCalcareus
653 $aMinas Gerais
653 $aVicosa
700 1 $aFIGUEIREDO, A. F. de
700 1 $aSUZUKI, A.
773 $tRevista da Universidade do Amazonas. Serie: Ciencias Agrarias, Manaus$gv.2, n.2, p.53-62, jul./dez. 1993.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
28/11/2022 |
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Data da última atualização: |
12/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
PEREIRA, R. A. A.; SILVA, H. F. M.; GONÇALVES, A. O.; VIANNA, M. S.; SILVA, T. J. A.; FENNER, W.; VIEIRA, P. V. D.; MARIN, F. R. |
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Afiliação: |
RODOLFO A. A. PEREIRA, ESCOLA SUPERIOR DE AGRICULTURA LUIZ DE QUEIROZ; EVANDRO H. F. M. SILVA, ESCOLA SUPERIOR DE AGRICULTURA LUIZ DE QUEIROZ; ALEXANDRE ORTEGA GONCALVES, CNPS; MURILO S. VIANNA, UNIVERSITY OF LEEDS; TONNY J. A. SILVA, UNIVERSIDADE FEDERAL DE RONDONÓPOLIS; WILLIAM FENNER, UNIVERSIDADE FEDERAL DE MATO GROSSO; PAULO V. D. VIEIRA, UNIVERSIDADE ESTADUAL DE MARINGÁ; FÁBIO R. MARIN, ESCOLA SUPERIOR DE AGRICULTURA LUIZ DE QUEIROZ. |
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Título: |
Winter wheat evapotranspiration and irrigation requirements across tropical and sub-tropical producing regions in Brazil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Theoretical and Applied Climatology, v. 151, n. 1/2, p. 375-388, Jan. 2023. |
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DOI: |
https://doi.org/10.1007/s00704-022-04282-3 |
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Idioma: |
Inglês |
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Conteúdo: |
Agricultural intensification is often seen as an appropriate approach to meet the growing demand for agricultural products. In regions affected by seasonal or chronic water scarcity, closing the yield gap depends on irrigation. Brazil is the second-largest wheat importer of the world and irrigated wheat has high yield potential in Brazil, especially in tropical and sub-tropical regions of the country. The crop coefficient (Kc) is still a practical and simple way of quantifying crop irrigation requirements. In this paper, we provided Kc values based on a robust experimental dataset across different wheat-producing regions in Brazil. Four experiments were conducted in three sites [season 2017 in Piracicaba, State of São Paulo (Southeast region); season 2012 Maringá, State of Paraná (Southern region); and seasons 2016 and 2017 Rondonópolis, State of Mato Grosso) (Midwest region)] using lysimeters and the Bowen ratio energy balance method for crop evapotranspiration measurements. Our data showed that Kc values varied among the regions analyzed. For the Midwest region, Kc values ranged from 0.88 to 1.36; the Southeastern region from 0.81 to 1.15, and the Southern region from 0.67 to 1.01. Considering values suggested by FAO, those for arid climates should be used in the Midwest region, sub-humid values for the Southeast, and humid values in the Southern. Differently, that was observed for other crops, our database showed wheat Kc values being stable disregarding the ETo range, which might be related to relatively lower ETo during the winter. MenosAgricultural intensification is often seen as an appropriate approach to meet the growing demand for agricultural products. In regions affected by seasonal or chronic water scarcity, closing the yield gap depends on irrigation. Brazil is the second-largest wheat importer of the world and irrigated wheat has high yield potential in Brazil, especially in tropical and sub-tropical regions of the country. The crop coefficient (Kc) is still a practical and simple way of quantifying crop irrigation requirements. In this paper, we provided Kc values based on a robust experimental dataset across different wheat-producing regions in Brazil. Four experiments were conducted in three sites [season 2017 in Piracicaba, State of São Paulo (Southeast region); season 2012 Maringá, State of Paraná (Southern region); and seasons 2016 and 2017 Rondonópolis, State of Mato Grosso) (Midwest region)] using lysimeters and the Bowen ratio energy balance method for crop evapotranspiration measurements. Our data showed that Kc values varied among the regions analyzed. For the Midwest region, Kc values ranged from 0.88 to 1.36; the Southeastern region from 0.81 to 1.15, and the Southern region from 0.67 to 1.01. Considering values suggested by FAO, those for arid climates should be used in the Midwest region, sub-humid values for the Southeast, and humid values in the Southern. Differently, that was observed for other crops, our database showed wheat Kc values being stable disregarding the ETo range, wh... Mostrar Tudo |
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Thesagro: |
Evapotranspiração; Irrigação; Trigo. |
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Thesaurus NAL: |
Evapotranspiration; Irrigation; Wheat. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02464naa a2200289 a 4500
001 2148828
005 2023-01-12
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s00704-022-04282-3$2DOI
100 1 $aPEREIRA, R. A. A.
245 $aWinter wheat evapotranspiration and irrigation requirements across tropical and sub-tropical producing regions in Brazil.$h[electronic resource]
260 $c2023
520 $aAgricultural intensification is often seen as an appropriate approach to meet the growing demand for agricultural products. In regions affected by seasonal or chronic water scarcity, closing the yield gap depends on irrigation. Brazil is the second-largest wheat importer of the world and irrigated wheat has high yield potential in Brazil, especially in tropical and sub-tropical regions of the country. The crop coefficient (Kc) is still a practical and simple way of quantifying crop irrigation requirements. In this paper, we provided Kc values based on a robust experimental dataset across different wheat-producing regions in Brazil. Four experiments were conducted in three sites [season 2017 in Piracicaba, State of São Paulo (Southeast region); season 2012 Maringá, State of Paraná (Southern region); and seasons 2016 and 2017 Rondonópolis, State of Mato Grosso) (Midwest region)] using lysimeters and the Bowen ratio energy balance method for crop evapotranspiration measurements. Our data showed that Kc values varied among the regions analyzed. For the Midwest region, Kc values ranged from 0.88 to 1.36; the Southeastern region from 0.81 to 1.15, and the Southern region from 0.67 to 1.01. Considering values suggested by FAO, those for arid climates should be used in the Midwest region, sub-humid values for the Southeast, and humid values in the Southern. Differently, that was observed for other crops, our database showed wheat Kc values being stable disregarding the ETo range, which might be related to relatively lower ETo during the winter.
650 $aEvapotranspiration
650 $aIrrigation
650 $aWheat
650 $aEvapotranspiração
650 $aIrrigação
650 $aTrigo
700 1 $aSILVA, H. F. M.
700 1 $aGONÇALVES, A. O.
700 1 $aVIANNA, M. S.
700 1 $aSILVA, T. J. A.
700 1 $aFENNER, W.
700 1 $aVIEIRA, P. V. D.
700 1 $aMARIN, F. R.
773 $tTheoretical and Applied Climatology$gv. 151, n. 1/2, p. 375-388, Jan. 2023.
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