| |
|
|
| Registros recuperados : 10 | |
| 3. |  | RECH, I.; HERRERA, W. B.; PAVINATO, P. S.; POLIDORO, J. C. Evaluation of N loss by volatilization from urea enriched with additives. In: ASA, CSSA & SSSA INTERNATIONAL ANNUAL MEETINGS, 2013, Tampa. Water, food, energy & inovation for a sustainable world. Madison: ASA: CSSA: SSSA, 2013. Poster number 2125.| Biblioteca(s): Embrapa Solos. |
|    |
| 4. | | PROCHNOW, L.; RESENDE, A.; JUNIOR, A.; FRANCISCO, E.; CASARIN, V.; PAVINATO, P. Phosphorus placement for annual crops in the tropics. Better Crops with Plant Food, Atlanta, v. 102, n. 1, p. 21-24, 2018.| Biblioteca(s): Embrapa Milho e Sorgo. |
| |
| 5. | | PROCHNOW, L.; RESENDE, A. V. de; JÚNIOR, A.; FRANCISCO, E.; CASARIN, V.; PAVINATO, P. Phosphorus placement for annual crops in the tropics. Better Crops with Plant Food, v. 102, n. 1, p. 21-24, 2018.| Biblioteca(s): Embrapa Milho e Sorgo. |
| |
| 6. | | MAI, M. E. M.; CERETTA, C. A.; BASSO, C. J.; SILVEIRA, M. J.; PAVINATO, A.; PAVINATO, P. S. Manejo da adubação nitrogenada na sucessão aveia-preta/milho no sistema plantio direto. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 38, n. 1, p. 125-131, jan. 2003 Título em inglês: Management of nitrogen fertilization in the succession black oat/corn in the no-tillage system.| Biblioteca(s): Embrapa Unidades Centrais. |
| |
| 7. | | PROCHNOW, L. I.; RESENDE, A. V. de; OLIVEIRA JUNIOR, A. de; FRANCISCO, E. A. B.; CASARIN, V.; PAVINATO, P. S. Localização do fósforo em culturas anuais na agricultura nacional: situação importante, complexa e polêmica. Informações Agronômicas, Piracicaba, n. 158, p. 1-5, jun. 2017.| Biblioteca(s): Embrapa Milho e Sorgo. |
| |
| 10. | | WITHERS, P. J. A.; RODRIGUES, M.; SOLTANGHEISI, A.; CARVALHO, T. S. de; GUILHERME, L. R. G.; BENITES, V. de M.; GATIBONI, L. C.; SOUSA, D. M. G. de; NUNES, R. de S.; ROSOLEM, C. A.; ANDREOTE, F. D.; OLIVEIRA JUNIOR, A. de; COUTINHO, E. L. M.; PAVINATO, P. S. Transitions to sustainable management of phosphorus in Brazilian agriculture. Scientific Reports, v. 8, article 2537, 2018.| Biblioteca(s): Embrapa Cerrados; Embrapa Soja; Embrapa Solos. |
| |
| Registros recuperados : 10 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Cerrados. |
|
Data corrente: |
30/12/2020 |
|
Data da última atualização: |
07/05/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 4 |
|
Autoria: |
NUNES, R. de S.; SOUSA, D. M. G. de; GOEDERT, J. W.; OLIVEIRA, L. E. Z.; PAVINATO, P. S.; PINHEIRO, T. D. |
|
Afiliação: |
RAFAEL DE SOUZA NUNES, CPAC; DJALMA MARTINHAO GOMES DE SOUSA, CPAC. |
|
Título: |
Distribution of Soil Phosphorus Fractions as a Function of Long-Term Soil Tillage and Phosphate Fertilization Management. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Frontiers in Earth Science, v. 8, 2020. |
|
Idioma: |
Português |
|
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 |
|
Thesagro: |
Fixação de Fósforo; Fósforo; Plantio Direto. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/219779/1/feart-08-00350.pdf
|
|
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.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Cerrados (CPAC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
