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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
27/12/2018 |
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Data da última atualização: |
09/01/2019 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
SERRA, A. P.; MARCHETTI, M. E.; DUPAS, E.; CARDUCCI, C. E.; SILVA, E. F. da; PINHEIRO, E. R. |
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Afiliação: |
ADEMAR PEREIRA SERRA, CNPGC; Marlene Estevão Marchetti; Elisângela Dupas; Carla Eloize Carducci; Eulene Francisco da Silva; Elaine Reis Pinheiro. |
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Título: |
Phosphorus in Forage Production. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
In: EDVAN, R. L. New Perspectives in Forage Crops. London, United Kingdom: IntechOpen, 2018 |
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Páginas: |
p. 340 |
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Idioma: |
Inglês |
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Conteúdo: |
The aim in developing this work was to summarize information about phosphorus (P) limitation and dynamic in tropical soils for forage grasses production. The major idea is direct information about limited factors affecting P availability, dynamic of P fractionation, P pools, P forms, P use efficiency, and the 4R?s Nutrient Stewardship? for P-fertilizer in forage grasses. Organizing these sub-headings in a chapter can result in interesting of how P behaves under tropical soils, in order to take decision to manage P-fertilizer to accomplish forage grasses production with social, economic, and environmental benefits. As the most limiting nutrient in tropical soils, P-fertilizer in forage grasses can be more effective if the best management practices are followed. In order to avoid excess P-fertilizer application in soil or P-fertilizer response with low efficiency, it is important to understand the P dynamic and the factors associated with P adsorption in soil. Even with low amount of P requested to forages species, the P available in soil is quite low, and this knowledge is primordial to direct P-fertilizer. Tropical soils are quite limited in P content, due to the natural formation with parental material poor in P content and highly weathering condition. Thus, in order to improve phosphorus use efficiency, the 4R?s must be followed to improve P use efficiency (PUE). It is not easy to improve PUE in highly weathering soil with high buffering capacity; however, all the combination of best management practices for P-fertilizer application can result in better use efficiency. Based on the scarcity of natural P-sources in the whole world, the use of alternative P-sources should be incentivized, and more researches about this issue are need for better understanding. MenosThe aim in developing this work was to summarize information about phosphorus (P) limitation and dynamic in tropical soils for forage grasses production. The major idea is direct information about limited factors affecting P availability, dynamic of P fractionation, P pools, P forms, P use efficiency, and the 4R?s Nutrient Stewardship? for P-fertilizer in forage grasses. Organizing these sub-headings in a chapter can result in interesting of how P behaves under tropical soils, in order to take decision to manage P-fertilizer to accomplish forage grasses production with social, economic, and environmental benefits. As the most limiting nutrient in tropical soils, P-fertilizer in forage grasses can be more effective if the best management practices are followed. In order to avoid excess P-fertilizer application in soil or P-fertilizer response with low efficiency, it is important to understand the P dynamic and the factors associated with P adsorption in soil. Even with low amount of P requested to forages species, the P available in soil is quite low, and this knowledge is primordial to direct P-fertilizer. Tropical soils are quite limited in P content, due to the natural formation with parental material poor in P content and highly weathering condition. Thus, in order to improve phosphorus use efficiency, the 4R?s must be followed to improve P use efficiency (PUE). It is not easy to improve PUE in highly weathering soil with high buffering capacity; however, all the combinat... Mostrar Tudo |
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Palavras-Chave: |
P-use efficiency. |
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Thesagro: |
Brachiaria sp; Panicum Maximum. |
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Thesaurus Nal: |
Soil fertility; Stylosanthes. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/189381/1/Phosporus-in-forage-production.pdf
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Marc: |
LEADER 02491naa a2200253 a 4500
001 2102563
005 2019-01-09
008 2018 bl uuuu u00u1 u #d
100 1 $aSERRA, A. P.
245 $aPhosphorus in Forage Production.$h[electronic resource]
260 $c2018
300 $ap. 340
520 $aThe aim in developing this work was to summarize information about phosphorus (P) limitation and dynamic in tropical soils for forage grasses production. The major idea is direct information about limited factors affecting P availability, dynamic of P fractionation, P pools, P forms, P use efficiency, and the 4R?s Nutrient Stewardship? for P-fertilizer in forage grasses. Organizing these sub-headings in a chapter can result in interesting of how P behaves under tropical soils, in order to take decision to manage P-fertilizer to accomplish forage grasses production with social, economic, and environmental benefits. As the most limiting nutrient in tropical soils, P-fertilizer in forage grasses can be more effective if the best management practices are followed. In order to avoid excess P-fertilizer application in soil or P-fertilizer response with low efficiency, it is important to understand the P dynamic and the factors associated with P adsorption in soil. Even with low amount of P requested to forages species, the P available in soil is quite low, and this knowledge is primordial to direct P-fertilizer. Tropical soils are quite limited in P content, due to the natural formation with parental material poor in P content and highly weathering condition. Thus, in order to improve phosphorus use efficiency, the 4R?s must be followed to improve P use efficiency (PUE). It is not easy to improve PUE in highly weathering soil with high buffering capacity; however, all the combination of best management practices for P-fertilizer application can result in better use efficiency. Based on the scarcity of natural P-sources in the whole world, the use of alternative P-sources should be incentivized, and more researches about this issue are need for better understanding.
650 $aSoil fertility
650 $aStylosanthes
650 $aBrachiaria sp
650 $aPanicum Maximum
653 $aP-use efficiency
700 1 $aMARCHETTI, M. E.
700 1 $aDUPAS, E.
700 1 $aCARDUCCI, C. E.
700 1 $aSILVA, E. F. da
700 1 $aPINHEIRO, E. R.
773 $tIn: EDVAN, R. L. New Perspectives in Forage Crops. London, United Kingdom: IntechOpen, 2018
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
22/08/2005 |
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Data da última atualização: |
13/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, M. C.; NOGUEIRA, A. R. de A.; NÓBREGA, J. A. |
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Afiliação: |
MIRIAN C. SANTOS, Universidade Federal de São Carlos; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; JOAQUIM A. NÓBREGA, Universidade Federal de São Carlos. |
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Título: |
Clay and refractory materials slurries in ductively coupled plasma optical emission spectrometry: effects of mechano chemical on emission intensities of analytes. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Journal of Brazilian Chemical Society, v. 16, n. 3a, p. 372-380, june 2005. |
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DOI: |
https://doi.org/10.1590/S0103-50532005000300010 |
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Idioma: |
Inglês |
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Conteúdo: |
The developed work investigated the application of mechanochemical synthesis for promoting reactions in the samples and for synthesizing new compounds for increment of emission intensities of analytes in clays and refractory materials slurries in inductively coupled plasma optical emission spectrometry with axial viewing. The hypothesis is that it is possible to generate more volatile compounds during the grinding step and these new compounds will increase the intensities of emission signals for slurries introduced in the plasma. The action of two chemical modifiers, LiBO2 and Na2CO3, added during the grinding step was evaluated. The clays and refractory materials mixed with the chemical modifier were ground for 2 h using a high impact ball mill with a tungsten carbide grinding container and balls. Slurries were prepared by dispersing the modified clays and refractory materials in 10% v v-1 HNO3 solution and by shaking them in an ultrasonic bath to ensure good dispersion. The compounds produced during the grinding step were characterised by X-ray diffraction and thermogravimetric analysis. Both techniques indicated the formation of new compounds in clays and refractory materials by mechanochemical synthesis. Chemical modification effects were evaluated by changes of the emission intensities of Al, Ca, Fe, K, Mg, P, Si, and Ti. Both modifiers caused increments of sensitivities for all analytes in up to 665% (Na2CO3) and 583% (LiBO2) compared to the emission signals for analytes present in slurries prepared using samples ground without adding modifiers. MenosThe developed work investigated the application of mechanochemical synthesis for promoting reactions in the samples and for synthesizing new compounds for increment of emission intensities of analytes in clays and refractory materials slurries in inductively coupled plasma optical emission spectrometry with axial viewing. The hypothesis is that it is possible to generate more volatile compounds during the grinding step and these new compounds will increase the intensities of emission signals for slurries introduced in the plasma. The action of two chemical modifiers, LiBO2 and Na2CO3, added during the grinding step was evaluated. The clays and refractory materials mixed with the chemical modifier were ground for 2 h using a high impact ball mill with a tungsten carbide grinding container and balls. Slurries were prepared by dispersing the modified clays and refractory materials in 10% v v-1 HNO3 solution and by shaking them in an ultrasonic bath to ensure good dispersion. The compounds produced during the grinding step were characterised by X-ray diffraction and thermogravimetric analysis. Both techniques indicated the formation of new compounds in clays and refractory materials by mechanochemical synthesis. Chemical modification effects were evaluated by changes of the emission intensities of Al, Ca, Fe, K, Mg, P, Si, and Ti. Both modifiers caused increments of sensitivities for all analytes in up to 665% (Na2CO3) and 583% (LiBO2) compared to the emission signals for analyt... Mostrar Tudo |
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Palavras-Chave: |
ICP; Mechanochemical synthesis; OES; Refractory material; Slurry. |
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Thesaurus NAL: |
clay. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/110387/1/a10v16n3a.pdf
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Marc: |
LEADER 02362naa a2200229 a 4500
001 1047197
005 2023-03-13
008 2005 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/S0103-50532005000300010$2DOI
100 1 $aSANTOS, M. C.
245 $aClay and refractory materials slurries in ductively coupled plasma optical emission spectrometry$beffects of mechano chemical on emission intensities of analytes.$h[electronic resource]
260 $c2005
520 $aThe developed work investigated the application of mechanochemical synthesis for promoting reactions in the samples and for synthesizing new compounds for increment of emission intensities of analytes in clays and refractory materials slurries in inductively coupled plasma optical emission spectrometry with axial viewing. The hypothesis is that it is possible to generate more volatile compounds during the grinding step and these new compounds will increase the intensities of emission signals for slurries introduced in the plasma. The action of two chemical modifiers, LiBO2 and Na2CO3, added during the grinding step was evaluated. The clays and refractory materials mixed with the chemical modifier were ground for 2 h using a high impact ball mill with a tungsten carbide grinding container and balls. Slurries were prepared by dispersing the modified clays and refractory materials in 10% v v-1 HNO3 solution and by shaking them in an ultrasonic bath to ensure good dispersion. The compounds produced during the grinding step were characterised by X-ray diffraction and thermogravimetric analysis. Both techniques indicated the formation of new compounds in clays and refractory materials by mechanochemical synthesis. Chemical modification effects were evaluated by changes of the emission intensities of Al, Ca, Fe, K, Mg, P, Si, and Ti. Both modifiers caused increments of sensitivities for all analytes in up to 665% (Na2CO3) and 583% (LiBO2) compared to the emission signals for analytes present in slurries prepared using samples ground without adding modifiers.
650 $aclay
653 $aICP
653 $aMechanochemical synthesis
653 $aOES
653 $aRefractory material
653 $aSlurry
700 1 $aNOGUEIRA, A. R. de A.
700 1 $aNÓBREGA, J. A.
773 $tJournal of Brazilian Chemical Society$gv. 16, n. 3a, p. 372-380, june 2005.
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Embrapa Pecuária Sudeste (CPPSE) |
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