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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
27/10/2020 |
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Data da última atualização: |
17/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BRASIL, E. C.; DANTAS, R. C. R.; SILVA JÚNIOR, M. L. da; GAMA, M. A. P. |
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Afiliação: |
EDILSON CARVALHO BRASIL, CPATU; RUBIA CARLA RIBEIRO DANTAS, UFRA; MÁRIO LOPES DA SILVA JÚNIOR, UFRA; MARCOS ANDRÉ PIEDADE GAMA, UFRA. |
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Título: |
Phosphorus fraction in a yellow latosol cropped under no-tilage system in the brazilian Amazon. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Agricultural Studies, v. 8, n. 3, p. 484-504, 2020. |
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DOI: |
https://doi.org/10.5296/jas.v8i3.16668 |
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Idioma: |
Inglês |
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Conteúdo: |
Phosphorus (P) deficiency is one of the main factors that limits productivity in Brazilian soils. However, soil management under no-tillage system (NT) may alter the availability of P in the soil. The objective of this study was to evaluate the dynamics ofP fractions in a dystrophic Yellow Latosol, cropped under no-tillage for a long period of time in the Amazon Biome. The study was conducted on a farm located in the municipality of Paragominas, southeastern Pará. This experiment evaluated plots cultivatedin plots at nine (NT9), 11 (NT11) and 13 (NT13) years of no-tillage system adoption, in one plot under conventional cultivation system (CS) and a surrounding area under native forest (NF) at depths of 0-10, 10-20, 20-30 and 30-40 cm. The soil samples weresubjected to P chemical fractionation to determine the different ractions. The soil management systems showed differential capacity of P accumulation. In the areas under no-tillage, P is accumulated in the toplayer and drastically reduced with depth, while in CS, this reduction is less pronounced. In the 0-20 cm depth layer during the adopted period of the no-tillage system, it was observed an increase in the content of inorganic phosphorus extracted by resin and 0.5 M NaHCO3(PiAERand PiBIC) and organicphosphorus extracted by 0.5 M NaHCO3(PoBIC), fractions considered as available for Biomass. Regardless of the year of adoption, the no-tillage system was superior to CS and NF. This was also observed for the inorganic and organic fractions extracted by NaOH 0.1M(PiHid-0.1and PoHid-0.1)and inorganic fraction extracted by HCl 1M (PiHCl). MenosPhosphorus (P) deficiency is one of the main factors that limits productivity in Brazilian soils. However, soil management under no-tillage system (NT) may alter the availability of P in the soil. The objective of this study was to evaluate the dynamics ofP fractions in a dystrophic Yellow Latosol, cropped under no-tillage for a long period of time in the Amazon Biome. The study was conducted on a farm located in the municipality of Paragominas, southeastern Pará. This experiment evaluated plots cultivatedin plots at nine (NT9), 11 (NT11) and 13 (NT13) years of no-tillage system adoption, in one plot under conventional cultivation system (CS) and a surrounding area under native forest (NF) at depths of 0-10, 10-20, 20-30 and 30-40 cm. The soil samples weresubjected to P chemical fractionation to determine the different ractions. The soil management systems showed differential capacity of P accumulation. In the areas under no-tillage, P is accumulated in the toplayer and drastically reduced with depth, while in CS, this reduction is less pronounced. In the 0-20 cm depth layer during the adopted period of the no-tillage system, it was observed an increase in the content of inorganic phosphorus extracted by resin and 0.5 M NaHCO3(PiAERand PiBIC) and organicphosphorus extracted by 0.5 M NaHCO3(PoBIC), fractions considered as available for Biomass. Regardless of the year of adoption, the no-tillage system was superior to CS and NF. This was also observed for the inorganic and org... Mostrar Tudo |
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Palavras-Chave: |
Yellow Latosol. |
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Thesagro: |
Fósforo; Latossolo Amarelo; Plantio Direto; Profundidade. |
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Thesaurus Nal: |
No-tillage; Phosphorus; Soil depth. |
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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/217109/1/Phosphorus-Fraction-in-a-Yellow-Latosol-Cropped-Under-No-tilage-System-in-the-Brazilian-Amazon.pdf
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Marc: |
LEADER 02411naa a2200265 a 4500
001 2125938
005 2020-11-17
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.5296/jas.v8i3.16668$2DOI
100 1 $aBRASIL, E. C.
245 $aPhosphorus fraction in a yellow latosol cropped under no-tilage system in the brazilian Amazon.$h[electronic resource]
260 $c2020
520 $aPhosphorus (P) deficiency is one of the main factors that limits productivity in Brazilian soils. However, soil management under no-tillage system (NT) may alter the availability of P in the soil. The objective of this study was to evaluate the dynamics ofP fractions in a dystrophic Yellow Latosol, cropped under no-tillage for a long period of time in the Amazon Biome. The study was conducted on a farm located in the municipality of Paragominas, southeastern Pará. This experiment evaluated plots cultivatedin plots at nine (NT9), 11 (NT11) and 13 (NT13) years of no-tillage system adoption, in one plot under conventional cultivation system (CS) and a surrounding area under native forest (NF) at depths of 0-10, 10-20, 20-30 and 30-40 cm. The soil samples weresubjected to P chemical fractionation to determine the different ractions. The soil management systems showed differential capacity of P accumulation. In the areas under no-tillage, P is accumulated in the toplayer and drastically reduced with depth, while in CS, this reduction is less pronounced. In the 0-20 cm depth layer during the adopted period of the no-tillage system, it was observed an increase in the content of inorganic phosphorus extracted by resin and 0.5 M NaHCO3(PiAERand PiBIC) and organicphosphorus extracted by 0.5 M NaHCO3(PoBIC), fractions considered as available for Biomass. Regardless of the year of adoption, the no-tillage system was superior to CS and NF. This was also observed for the inorganic and organic fractions extracted by NaOH 0.1M(PiHid-0.1and PoHid-0.1)and inorganic fraction extracted by HCl 1M (PiHCl).
650 $aNo-tillage
650 $aPhosphorus
650 $aSoil depth
650 $aFósforo
650 $aLatossolo Amarelo
650 $aPlantio Direto
650 $aProfundidade
653 $aYellow Latosol
700 1 $aDANTAS, R. C. R.
700 1 $aSILVA JÚNIOR, M. L. da
700 1 $aGAMA, M. A. P.
773 $tJournal of Agricultural Studies$gv. 8, n. 3, p. 484-504, 2020.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
14/08/2006 |
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Data da última atualização: |
28/05/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
GUDU, S.; OKALEBO, J. R.; OTHIENO, C. O.; OBURA, P. A.; LIGEYO, D. O.; SANTANA, D. P.; SCHULZE, D.; JOHNSTON, C.; KISINYO, P. O. |
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Afiliação: |
DERLI PRUDENTE SANTANA, CNPMS. |
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Título: |
Maize response to phosphate and lime on marginal fertility soils of Western Kenya. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
In: INTERNATIONAL SYMPOSIUM ON PHOSPHORUS DYNAMICS IN THE SOIL-PLANT CONTINUUM, 3., 2006, Uberlândia. Proceedings... Sete Lagoas: Embrapa Milho e Sorgo, 2006. p. 157-158. |
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Idioma: |
Inglês |
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Thesagro: |
Fertilidade do solo; Milho; Solo. |
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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/59196/1/Maize-response.pdf
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Marc: |
LEADER 00782nam a2200229 a 4500
001 1489653
005 2018-05-28
008 2006 bl uuuu u00u1 u #d
100 1 $aGUDU, S.
245 $aMaize response to phosphate and lime on marginal fertility soils of Western Kenya.$h[electronic resource]
260 $aIn: INTERNATIONAL SYMPOSIUM ON PHOSPHORUS DYNAMICS IN THE SOIL-PLANT CONTINUUM, 3., 2006, Uberlândia. Proceedings... Sete Lagoas: Embrapa Milho e Sorgo, 2006. p. 157-158.$c2006
650 $aFertilidade do solo
650 $aMilho
650 $aSolo
700 1 $aOKALEBO, J. R.
700 1 $aOTHIENO, C. O.
700 1 $aOBURA, P. A.
700 1 $aLIGEYO, D. O.
700 1 $aSANTANA, D. P.
700 1 $aSCHULZE, D.
700 1 $aJOHNSTON, C.
700 1 $aKISINYO, P. O.
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Embrapa Milho e Sorgo (CNPMS) |
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