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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
30/12/2020 |
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Data da última atualização: |
07/05/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NUNES, R. de S.; SOUSA, D. M. G. de; GOEDERT, J. W.; OLIVEIRA, L. E. Z.; PAVINATO, P. S.; PINHEIRO, T. D. |
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Afiliação: |
RAFAEL DE SOUZA NUNES, CPAC; DJALMA MARTINHAO GOMES DE SOUSA, CPAC. |
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Título: |
Distribution of Soil Phosphorus Fractions as a Function of Long-Term Soil Tillage and Phosphate Fertilization Management. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Frontiers in Earth Science, v. 8, 2020. |
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Idioma: |
Português |
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Conteúdo: |
The forms in which phosphorus (P) accumulates in soils are dependent on management practices, fertilizer sources, and methods of application, which may promote distinct P solubility and plant uptake. We aimed here to evaluate how soil tillage and phosphate fertilization strategies affected soil P fractions over 17 years and to identify best management practices for improving labile P fractions. The experiment was conducted in a very clayey Rhodic Ferralsol (Oxisol) with initially very low P availability, during 17 years under soybean and corn, fertilized with 35 kg P ha?1 year?1 . Treatments were two soil management systems (CT-conventional tillage and NT-no-till) and four phosphate fertilization strategies (TSP ? triple superphosphate or RRP ? reactive rock phosphate, applied to the crop furrow or broadcast). Soil samples were taken at five depth layers, and organic (Po), inorganic (Pi), and total P (Pt) were determined by Hedley?s sequential fractionation. CT resulted in a more homogeneous distribution of Pi fractions throughout the soil profile, while under NT there was a steep depth gradient characterized by Pi accumulation in the fertilizer application zone. NT resulted in accumulation of Pi in more labile fractions and higher accumulation of Po physically protected by aggregation, both compared to CT. Also, under NT with RRP, there was a great accumulation of Pi associated with calcium (HCl Pi) compared to TSP, especially when the fertilizer was broadcast applied. An accumulation of Po down to 20 cm (CT) and 10 cm (NT) was also detected, compared to Cerrado natural soil. NT and RRP positively affected legacy P fractions and can be recommended as strategies to improve P fertilizer use efficiency. Keywords: no-tillage, P fractionation, legacy P, P source, P distribution MenosThe forms in which phosphorus (P) accumulates in soils are dependent on management practices, fertilizer sources, and methods of application, which may promote distinct P solubility and plant uptake. We aimed here to evaluate how soil tillage and phosphate fertilization strategies affected soil P fractions over 17 years and to identify best management practices for improving labile P fractions. The experiment was conducted in a very clayey Rhodic Ferralsol (Oxisol) with initially very low P availability, during 17 years under soybean and corn, fertilized with 35 kg P ha?1 year?1 . Treatments were two soil management systems (CT-conventional tillage and NT-no-till) and four phosphate fertilization strategies (TSP ? triple superphosphate or RRP ? reactive rock phosphate, applied to the crop furrow or broadcast). Soil samples were taken at five depth layers, and organic (Po), inorganic (Pi), and total P (Pt) were determined by Hedley?s sequential fractionation. CT resulted in a more homogeneous distribution of Pi fractions throughout the soil profile, while under NT there was a steep depth gradient characterized by Pi accumulation in the fertilizer application zone. NT resulted in accumulation of Pi in more labile fractions and higher accumulation of Po physically protected by aggregation, both compared to CT. Also, under NT with RRP, there was a great accumulation of Pi associated with calcium (HCl Pi) compared to TSP, especially when the fertilizer was broadcast applied. An a... Mostrar Tudo |
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Thesagro: |
Fixação de Fósforo; Fósforo; Plantio Direto. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/219779/1/feart-08-00350.pdf
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Marc: |
LEADER 02472naa a2200217 a 4500
001 2128863
005 2021-05-07
008 2020 bl uuuu u00u1 u #d
100 1 $aNUNES, R. de S.
245 $aDistribution of Soil Phosphorus Fractions as a Function of Long-Term Soil Tillage and Phosphate Fertilization Management.$h[electronic resource]
260 $c2020
520 $aThe forms in which phosphorus (P) accumulates in soils are dependent on management practices, fertilizer sources, and methods of application, which may promote distinct P solubility and plant uptake. We aimed here to evaluate how soil tillage and phosphate fertilization strategies affected soil P fractions over 17 years and to identify best management practices for improving labile P fractions. The experiment was conducted in a very clayey Rhodic Ferralsol (Oxisol) with initially very low P availability, during 17 years under soybean and corn, fertilized with 35 kg P ha?1 year?1 . Treatments were two soil management systems (CT-conventional tillage and NT-no-till) and four phosphate fertilization strategies (TSP ? triple superphosphate or RRP ? reactive rock phosphate, applied to the crop furrow or broadcast). Soil samples were taken at five depth layers, and organic (Po), inorganic (Pi), and total P (Pt) were determined by Hedley?s sequential fractionation. CT resulted in a more homogeneous distribution of Pi fractions throughout the soil profile, while under NT there was a steep depth gradient characterized by Pi accumulation in the fertilizer application zone. NT resulted in accumulation of Pi in more labile fractions and higher accumulation of Po physically protected by aggregation, both compared to CT. Also, under NT with RRP, there was a great accumulation of Pi associated with calcium (HCl Pi) compared to TSP, especially when the fertilizer was broadcast applied. An accumulation of Po down to 20 cm (CT) and 10 cm (NT) was also detected, compared to Cerrado natural soil. NT and RRP positively affected legacy P fractions and can be recommended as strategies to improve P fertilizer use efficiency. Keywords: no-tillage, P fractionation, legacy P, P source, P distribution
650 $aFixação de Fósforo
650 $aFósforo
650 $aPlantio Direto
700 1 $aSOUSA, D. M. G. de
700 1 $aGOEDERT, J. W.
700 1 $aOLIVEIRA, L. E. Z.
700 1 $aPAVINATO, P. S.
700 1 $aPINHEIRO, T. D.
773 $tFrontiers in Earth Science$gv. 8, 2020.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Origem |
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Registro |
Volume |
Status |
URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas; Embrapa Milho e Sorgo; Embrapa Pantanal; Embrapa Solos. |
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Data corrente: |
30/07/2019 |
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Data da última atualização: |
21/11/2019 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
FERRAZ, R. P. D.; PRADO, R. B.; SIMÕES, M.; CAMPANHA, M. M.; FIDALGO, E. C. C.; BERGIER, I.; TURETTA, A. P. D.; TONUCCI, R. G.; MONTEIRO, J. M. G.; PARRON, L. M. |
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Afiliação: |
RODRIGO PECANHA DEMONTE FERRAZ, CNPS; RACHEL BARDY PRADO, CNPS; MARGARETH GONCALVES SIMOES, CNPS; MONICA MATOSO CAMPANHA, CNPMS; ELAINE CRISTINA CARDOSO FIDALGO, CNPS; IVAN BERGIER TAVARES DE LIMA, CPAP; ANA PAULA DIAS TURETTA, CNPS; RAFAEL GONCALVES TONUCCI, CNPC; JOYCE MARIA GUIMARAES MONTEIRO, CNPS; LUCILIA MARIA PARRON VARGAS, CNPF. |
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Título: |
Serviços ecossistêmicos: uma abordagem conceitual. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
In: FERRAZ, R. P. D.; PRADO, R. B.; PARRON, L. M.; CAMPANHA, M. M. (Ed.). Marco referencial em serviços ecossistêmicos. Brasília, DF: Embrapa, 2019. cap. 1, p. 19-36. |
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Idioma: |
Português |
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Conteúdo: |
O presente capítulo tem como propósito introduzir o leitor nos conceitos fundamentais sobre o tema "Serviços Ecossistêmicos" ou "Serviços Ambientais". Desse modo, será discuti do, brevemente, o que são e quais são os diferentes ti pos de serviços ecossistêmicos. Assim como, suas relações com as funções ecossistêmicas. Além dessa breve discussão sobre os principais aspectos do tema "Serviços Ecossistêmicos", serão apresentados os principais posicionamentos conceituais que permeiam este documento e sob os quais a Empresa Brasileira de Pesquisa Agropecuária (Embrapa) baliza a sua atuação no cumprimento da sua missão de pesquisa, desenvolvimento e transferência de tecnologia. |
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Palavras-Chave: |
Serviços Ambientais. |
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Thesagro: |
Desenvolvimento Sustentável; Meio Ambiente. |
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Thesaurus NAL: |
Ecosystem services; Sustainable development. |
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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/200590/1/Servicos-ecossistemicos-uma-abordagem-conceitual-cap-1-2019.pdf
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Marc: |
LEADER 01644naa a2200289 a 4500
001 2110949
005 2019-11-21
008 2019 bl uuuu u00u1 u #d
100 1 $aFERRAZ, R. P. D.
245 $aServiços ecossistêmicos$buma abordagem conceitual.$h[electronic resource]
260 $c2019
520 $aO presente capítulo tem como propósito introduzir o leitor nos conceitos fundamentais sobre o tema "Serviços Ecossistêmicos" ou "Serviços Ambientais". Desse modo, será discuti do, brevemente, o que são e quais são os diferentes ti pos de serviços ecossistêmicos. Assim como, suas relações com as funções ecossistêmicas. Além dessa breve discussão sobre os principais aspectos do tema "Serviços Ecossistêmicos", serão apresentados os principais posicionamentos conceituais que permeiam este documento e sob os quais a Empresa Brasileira de Pesquisa Agropecuária (Embrapa) baliza a sua atuação no cumprimento da sua missão de pesquisa, desenvolvimento e transferência de tecnologia.
650 $aEcosystem services
650 $aSustainable development
650 $aDesenvolvimento Sustentável
650 $aMeio Ambiente
653 $aServiços Ambientais
700 1 $aPRADO, R. B.
700 1 $aSIMÕES, M.
700 1 $aCAMPANHA, M. M.
700 1 $aFIDALGO, E. C. C.
700 1 $aBERGIER, I.
700 1 $aTURETTA, A. P. D.
700 1 $aTONUCCI, R. G.
700 1 $aMONTEIRO, J. M. G.
700 1 $aPARRON, L. M.
773 $tIn: FERRAZ, R. P. D.; PRADO, R. B.; PARRON, L. M.; CAMPANHA, M. M. (Ed.). Marco referencial em serviços ecossistêmicos. Brasília, DF: Embrapa, 2019. cap. 1, p. 19-36.
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Embrapa Solos (CNPS) |
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