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dc.contributor.authorBRASIL, E. C.
dc.contributor.authorDANTAS, R. C. R.
dc.contributor.authorSILVA JÚNIOR, M. L. da
dc.contributor.authorGAMA, M. A. P.
dc.date.accessioned2020-10-28T09:14:46Z-
dc.date.available2020-10-28T09:14:46Z-
dc.date.created2020-10-27
dc.date.issued2020
dc.identifier.citationJournal of Agricultural Studies, v. 8, n. 3, p. 484-504, 2020.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1125938-
dc.descriptionPhosphorus (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).eng
dc.language.isoeng
dc.rightsopenAccesseng
dc.subjectYellow Latosol
dc.titlePhosphorus fraction in a yellow latosol cropped under no-tilage system in the brazilian Amazon.
dc.typeArtigo de periódico
dc.subject.thesagroPlantio Direto
dc.subject.thesagroLatossolo Amarelo
dc.subject.thesagroFósforo
dc.subject.thesagroProfundidade
dc.subject.nalthesaurusNo-tillage
dc.subject.nalthesaurusPhosphorus
dc.subject.nalthesaurusSoil depth
riaa.ainfo.id1125938
riaa.ainfo.lastupdate2020-11-17 -02:00:00
dc.identifier.doihttps://doi.org/10.5296/jas.v8i3.16668eng
dc.contributor.institutionEDILSON CARVALHO BRASIL, CPATU
dc.contributor.institutionRUBIA CARLA RIBEIRO DANTAS, UFRAeng
dc.contributor.institutionMÁRIO LOPES DA SILVA JÚNIOR, UFRAeng
dc.contributor.institutionMARCOS ANDRÉ PIEDADE GAMA, UFRA.eng
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