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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sul. |
Data corrente: |
22/02/2017 |
Data da última atualização: |
22/02/2017 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
MACMANUS, C.; BARCELLOS, J. O. J.; HERMUCHE, P. M.; CARVALHO JÚNIOR, O. A. D.; GUIMARÃES, R. F.; GIANEZINI, M.; DIAS, E. A.; LAMPERT, V. do N.; ZAGO, D.; LLIMA, P. R. M.; PERPOLLI, V.; TANURE, C. B.; SEIXAS, L. |
Afiliação: |
Concepta Mcmanus, UNB; Júlio Otávio J. Barcellos, UFRGS; Potira M. Hermuche, UNB; Osmar A. D. Carvalho Júnior, UNB; Renato F. Guimarães, UNB; Miguelangelo Gianezini, UFRGS; Eduardo A. Dias, UFRGS; VINICIUS DO NASCIMENTO LAMPERT, CPPSUL; Danielle Zago, UFRGS; Paulo Ricardo M. Lima, UNB; Vanessa Peripolli, UNB; Candice B. Tanure, UNB; Luiza Seixas, UNB. |
Título: |
Regional changes in Brazilian beef cattle production. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
In:WORLD BURIATRICS CONGRESS, 29., 2016, Dublin. Cattle health: tomorrow?s thinking today: proceedings. Dublin: World Association for Buiatrics: Veterinary Ireland, 2016. |
Páginas: |
p. 232. |
Idioma: |
Português |
Notas: |
Editor: Michael Doherty. |
Thesagro: |
Bovino; Gado de corte; Produção animal. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/156463/1/Mcmanus-et-al-2016.pdf
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Marc: |
LEADER 00962nam a2200301 a 4500 001 2065226 005 2017-02-22 008 2016 bl uuuu u00u1 u #d 100 1 $aMACMANUS, C. 245 $aRegional changes in Brazilian beef cattle production.$h[electronic resource] 260 $aIn:WORLD BURIATRICS CONGRESS, 29., 2016, Dublin. Cattle health: tomorrow?s thinking today: proceedings. Dublin: World Association for Buiatrics: Veterinary Ireland$c2016 300 $ap. 232. 500 $aEditor: Michael Doherty. 650 $aBovino 650 $aGado de corte 650 $aProdução animal 700 1 $aBARCELLOS, J. O. J. 700 1 $aHERMUCHE, P. M. 700 1 $aCARVALHO JÚNIOR, O. A. D. 700 1 $aGUIMARÃES, R. F. 700 1 $aGIANEZINI, M. 700 1 $aDIAS, E. A. 700 1 $aLAMPERT, V. do N. 700 1 $aZAGO, D. 700 1 $aLLIMA, P. R. M. 700 1 $aPERPOLLI, V. 700 1 $aTANURE, C. B. 700 1 $aSEIXAS, L.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
08/01/2013 |
Data da última atualização: |
11/01/2013 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
MARCHI, G.; SILVA, V. A.; GUILHERME, L. R. G.; LIMA, J. M.; NOGUEIRA, F. D.; GUIMARÃES, P. T. G. |
Afiliação: |
GIULIANO MARCHI, CPAC; VLADIMIR ANTÔNIO SILVA, UFLA; LUIZ ROBERTO GUIMARÃES GUILHERME, UFLA; JOSÉ MARIA LIMA, UFLA; FRANCISCO DIAS NOGUEIRA, EPAMIG; PAULO TÁCITO GONTIJO GUIMARÃES, EPAMIG. |
Título: |
Potassium extractability from soils of brazilian coffee regions. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Bioscience Journal, Uberlândia, MG, v. 28, n. 6, p. 913-919, nov./dez. 2012. |
Idioma: |
Inglês |
Conteúdo: |
Coffee, which is an important commodity for Brazil, is a highly K-demanding crop. Methods for recommending K fertilization to coffee crops in Brazil are based on the amount of exchangeable K. Mineralogical studies estimating K supply capacity from different soil fractions, from medium to long term, were performed in Brazilian soils, but very few studies have been carried out focusing on the use of successive chemical extractions. This study evaluated K release from whole soil, as well as clay, silt, and sand fractions of B-horizon samples of a basalt-derived Oxisol and a sienite-derived Ultisol, both representative soils from coffee regions of Minas Gerais State. Successive extractions (0 to 665 h) of K were performed with 10-3 mol L-1 of either citrate or oxalate at 1:10 solid:solution ratio. The cumulative results were compared with forms of K (exchangeable, non-exchangeable, and total) as measured by different extraction procedures. The results showed that exchangeable K was higher, and non-exchangeable as well as total K were lower in the whole soil fraction of the Oxisol, than the K forms extracted from the Ultisol. The clay fraction was the main source of K in the Oxisol whereas the silt fraction contributed most for K supply in the Ultisol. Citrate and oxalate extracted similar amounts of K from the Oxisol, which is probably related to the fact that most of its K supply came from the exchangeable form. Citrate caused a greater release of K (part of which being from the non-exchangeable form) from the Ultisol than did oxalate. This work showed that soil texture alone is not a good indicator of K supply capacity, since for the same particle size, the studied soils revealed different K extractability. MenosCoffee, which is an important commodity for Brazil, is a highly K-demanding crop. Methods for recommending K fertilization to coffee crops in Brazil are based on the amount of exchangeable K. Mineralogical studies estimating K supply capacity from different soil fractions, from medium to long term, were performed in Brazilian soils, but very few studies have been carried out focusing on the use of successive chemical extractions. This study evaluated K release from whole soil, as well as clay, silt, and sand fractions of B-horizon samples of a basalt-derived Oxisol and a sienite-derived Ultisol, both representative soils from coffee regions of Minas Gerais State. Successive extractions (0 to 665 h) of K were performed with 10-3 mol L-1 of either citrate or oxalate at 1:10 solid:solution ratio. The cumulative results were compared with forms of K (exchangeable, non-exchangeable, and total) as measured by different extraction procedures. The results showed that exchangeable K was higher, and non-exchangeable as well as total K were lower in the whole soil fraction of the Oxisol, than the K forms extracted from the Ultisol. The clay fraction was the main source of K in the Oxisol whereas the silt fraction contributed most for K supply in the Ultisol. Citrate and oxalate extracted similar amounts of K from the Oxisol, which is probably related to the fact that most of its K supply came from the exchangeable form. Citrate caused a greater release of K (part of which being from th... Mostrar Tudo |
Thesagro: |
Café; Solo. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02301naa a2200205 a 4500 001 1944331 005 2013-01-11 008 2012 bl uuuu u00u1 u #d 100 1 $aMARCHI, G. 245 $aPotassium extractability from soils of brazilian coffee regions. 260 $c2012 520 $aCoffee, which is an important commodity for Brazil, is a highly K-demanding crop. Methods for recommending K fertilization to coffee crops in Brazil are based on the amount of exchangeable K. Mineralogical studies estimating K supply capacity from different soil fractions, from medium to long term, were performed in Brazilian soils, but very few studies have been carried out focusing on the use of successive chemical extractions. This study evaluated K release from whole soil, as well as clay, silt, and sand fractions of B-horizon samples of a basalt-derived Oxisol and a sienite-derived Ultisol, both representative soils from coffee regions of Minas Gerais State. Successive extractions (0 to 665 h) of K were performed with 10-3 mol L-1 of either citrate or oxalate at 1:10 solid:solution ratio. The cumulative results were compared with forms of K (exchangeable, non-exchangeable, and total) as measured by different extraction procedures. The results showed that exchangeable K was higher, and non-exchangeable as well as total K were lower in the whole soil fraction of the Oxisol, than the K forms extracted from the Ultisol. The clay fraction was the main source of K in the Oxisol whereas the silt fraction contributed most for K supply in the Ultisol. Citrate and oxalate extracted similar amounts of K from the Oxisol, which is probably related to the fact that most of its K supply came from the exchangeable form. Citrate caused a greater release of K (part of which being from the non-exchangeable form) from the Ultisol than did oxalate. This work showed that soil texture alone is not a good indicator of K supply capacity, since for the same particle size, the studied soils revealed different K extractability. 650 $aCafé 650 $aSolo 700 1 $aSILVA, V. A. 700 1 $aGUILHERME, L. R. G. 700 1 $aLIMA, J. M. 700 1 $aNOGUEIRA, F. D. 700 1 $aGUIMARÃES, P. T. G. 773 $tBioscience Journal, Uberlândia, MG$gv. 28, n. 6, p. 913-919, nov./dez. 2012.
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