| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
27/10/2020 |
|
Data da última atualização: |
17/11/2020 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
BRASIL, E. C.; DANTAS, R. C. R.; SILVA JÚNIOR, M. L. da; GAMA, M. A. P. |
|
Afiliação: |
EDILSON CARVALHO BRASIL, CPATU; RUBIA CARLA RIBEIRO DANTAS, UFRA; MÁRIO LOPES DA SILVA JÚNIOR, UFRA; MARCOS ANDRÉ PIEDADE GAMA, UFRA. |
|
Título: |
Phosphorus fraction in a yellow latosol cropped under no-tilage system in the brazilian Amazon. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Journal of Agricultural Studies, v. 8, n. 3, p. 484-504, 2020. |
|
DOI: |
https://doi.org/10.5296/jas.v8i3.16668 |
|
Idioma: |
Inglês |
|
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 |
|
Palavras-Chave: |
Yellow Latosol. |
|
Thesagro: |
Fósforo; Latossolo Amarelo; Plantio Direto; Profundidade. |
|
Thesaurus Nal: |
No-tillage; Phosphorus; Soil depth. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
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
|
|
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.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Amazônia Ocidental. |
|
Data corrente: |
19/02/2014 |
|
Data da última atualização: |
09/04/2014 |
|
Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
|
Autoria: |
CARDOSO, M. O.; BERNI, R. F.; OLIVEIRA, M. L. de; VASCONCELOS, H. dos S. |
|
Afiliação: |
MARINICE OLIVEIRA CARDOSO, CPAA; RODRIGO FASCIN BERNI, CPAA; Marcela Lessa de Oliveira, Bolsista de Iniciação Científica, Paic/Fapeam/CPAA; Hebe dos Santos Vasconcelos, Bolsista de Iniciação Científica, Paic/Fapeam/CPAA. |
|
Título: |
Produção de mudas de maxixe com recipiente e substrato artesanal. |
|
Ano de publicação: |
2013 |
|
Fonte/Imprenta: |
Manaus: Embrapa Amazônia Ocidental, 2013. |
|
Série: |
(Embrapa Amazônia Ocidental. Comunicado técnico, 102). |
|
ISSN: |
1517-3887 |
|
Idioma: |
Português |
|
Conteúdo: |
Neste trabalho, buscou-se estudar diferentes substratos para a produção de mudas de maxixe, utilizando materiais disponíveis no meio rural (terriço, areia, composto orgânico e cupinzeiro). |
|
Palavras-Chave: |
Maxixeiro; Produção de mudas. |
|
Thesagro: |
Cucumis Anguria. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/100665/1/Com-Tec-102.pdf
|
|
Marc: |
LEADER 00801nam a2200205 a 4500
001 1980438
005 2014-04-09
008 2013 bl uuuu u0uu1 u #d
022 $a1517-3887
100 1 $aCARDOSO, M. O.
245 $aProdução de mudas de maxixe com recipiente e substrato artesanal.
260 $aManaus: Embrapa Amazônia Ocidental$c2013
490 $a(Embrapa Amazônia Ocidental. Comunicado técnico, 102).
520 $aNeste trabalho, buscou-se estudar diferentes substratos para a produção de mudas de maxixe, utilizando materiais disponíveis no meio rural (terriço, areia, composto orgânico e cupinzeiro).
650 $aCucumis Anguria
653 $aMaxixeiro
653 $aProdução de mudas
700 1 $aBERNI, R. F.
700 1 $aOLIVEIRA, M. L. de
700 1 $aVASCONCELOS, H. dos S.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
