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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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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
27/09/2018 |
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Data da última atualização: |
07/02/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SILVA, E. O. da; COSTA, F. S.; SILVA, A. D. da; OLIVEIRA, R. S.; CAVALCANTI, C. P. L.; QUEIROZ, M. A. A. de; MATTOS, M. H. T. de; MORAES, S. A. de. |
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Afiliação: |
ELVES OLIVEIRA DA SILVA, UNIVASF; FERNANDA SOUZA COSTA, UNIVASF; ALEX DOMINGOS DA SILVA, UNIVASF; RHAMANNE SANTOS OLIVEIRA, UNIVASF; CINTHIA PRISCILLA LIMA CAVALCANTI, UNIVASF; MÁRIO ADRIANO ÁVILA DE QUEIROZ, UNIVASF; MARIA HELENA TAVARES DE MATTOS, UNIVASF; SALETE ALVES DE MORAES, CPATSA. |
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Título: |
Comportamento ingestivo e digestibilidade in vivo da matéria seca de ovelhas de descarte alimentadas com óleo de licurí. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia, GO. Construindo saberes, formando pessoas e transformando a produção animal. Goiânia, GO: Sociedade Brasileira de Zootecnia: Associação Brasileira de Zootecnistas, 2018. |
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Idioma: |
Português |
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Conteúdo: |
Objetivou-se como o presente trabalho avaliar a influências da inclusão dos diferentes níveis do óleo de licuri no comportamento ingestivo e na digestibilidade da matéria seca de ovelhas de descarte da raça Santa Inês |
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Palavras-Chave: |
Óleo de licuri. |
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Thesagro: |
Digestibilidade; Matéria Seca; Nutrição Animal; Ovelha; Produção Animal. |
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Thesaurus NAL: |
Animal nutrition. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/183623/1/Salete.pdf
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Marc: |
LEADER 01320nam a2200277 a 4500
001 2096484
005 2024-02-07
008 2018 bl uuuu u00u1 u #d
100 1 $aSILVA, E. O. da
245 $aComportamento ingestivo e digestibilidade in vivo da matéria seca de ovelhas de descarte alimentadas com óleo de licurí.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia, GO. Construindo saberes, formando pessoas e transformando a produção animal. Goiânia, GO: Sociedade Brasileira de Zootecnia: Associação Brasileira de Zootecnistas$c2018
520 $aObjetivou-se como o presente trabalho avaliar a influências da inclusão dos diferentes níveis do óleo de licuri no comportamento ingestivo e na digestibilidade da matéria seca de ovelhas de descarte da raça Santa Inês
650 $aAnimal nutrition
650 $aDigestibilidade
650 $aMatéria Seca
650 $aNutrição Animal
650 $aOvelha
650 $aProdução Animal
653 $aÓleo de licuri
700 1 $aCOSTA, F. S.
700 1 $aSILVA, A. D. da
700 1 $aOLIVEIRA, R. S.
700 1 $aCAVALCANTI, C. P. L.
700 1 $aQUEIROZ, M. A. A. de
700 1 $aMATTOS, M. H. T. de
700 1 $aMORAES, S. A. de
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