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Abstract
We analyze the short term effect of the harvest residues management on the Phosphorus (P) fractions of the soil. Four trials were installed in Northeast Argentina on Vertisols (S1), Mollisols (S2) and Entisols (S3 and S4). In S1 and S2 harvest residues and forest fl oor were either (1) removed (R), (2) retained (RR), 3) burnt (BR), or (4) retained at double the normal quantity (DR). In S3 and S4 harvest residues where (1) removed (WTH), 2) retained (RR) [ver mas...]
dc.contributor.authorLupi, Ana Maria
dc.contributor.authorQuintero, Cesar
dc.contributor.authorBoca, Rosa Teresa
dc.contributor.authorDiaz, Diana
dc.contributor.authorBoschetti, Graciela
dc.contributor.authorAparicio, Jorge Luis
dc.contributor.authorIngaramo, Luciana And
dc.date.accessioned2021-05-28T16:31:39Z
dc.date.available2021-05-28T16:31:39Z
dc.date.issued2012
dc.identifier.issn2730-5066
dc.identifier.otherhttps://doi.org/10.31285/AGRO.16.655
dc.identifier.urihttp://agrocienciauruguay.uy/ojs/index.php/agrociencia/article/view/655
dc.identifier.urihttp://hdl.handle.net/20.500.12123/9447
dc.description.abstractWe analyze the short term effect of the harvest residues management on the Phosphorus (P) fractions of the soil. Four trials were installed in Northeast Argentina on Vertisols (S1), Mollisols (S2) and Entisols (S3 and S4). In S1 and S2 harvest residues and forest fl oor were either (1) removed (R), (2) retained (RR), 3) burnt (BR), or (4) retained at double the normal quantity (DR). In S3 and S4 harvest residues where (1) removed (WTH), 2) retained (RR) or 3) burnt (BR). Soil samples were obtained at 0-5 cm and 5-10 cm depth layers at 18 (S1), 22(S2, S3) and 10 (S4) months after burnt treatments. P fractions were determined according to Hedley et al. (1982) methods. Soil orders showed different total P: in Mollisols P concentration (S2: 314,3 mg kg-1) tripled those in Entisols (S3 y S4: 118,4 mg P kg-1). Differences were even higher for Organic P (Po): the highest concentration was found in Mollisols (171,4 mg Po kg-1) related to its higher organic matter, and the lowest concentration was in Entisols (44,0 mg Po kg-1). Available P was between 14 mg kg-1 and 25 mg kg-1, enough to satisfy annual demands of forest plantations (Eucalyptus and Pinus). RR and DR did not show changes in the P fractions, although an increase in the P reserves (Po y Pt) could be expected for the middle term, due to the decomposition of the retained/added residues. R or WTH did not affect neither inorganic nor organic P fractions. The most important change was found in BR, where the available P and other mean and highly stable inorganic P fractions increased, due to the ashes; the Po was not modified. The fi re was an instant mechanism to transfer the nutrients from the biomass to the soil.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherINIA Uruguay y Facultad de Agronomía, Universidad de la Repúblicaes_AR
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.sourceAgrociencia Uruguay 16 (3) : 128-134. (2012)es_AR
dc.subjectBosqueses_AR
dc.subjectForestseng
dc.subjectPinuses_AR
dc.subjectEucalyptuses_AR
dc.subjectFósforoes_AR
dc.subjectPhosphoruseng
dc.subjectSueloes_AR
dc.subjectSoileng
dc.subjectOrdenación Forestales_AR
dc.subjectForest Managementeng
dc.titleChanges in soil phosphorus in different forest residue managementes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenInstituto de Sueloses_AR
dc.description.filFil: Lupi, Ana Maria. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentinaes_AR
dc.description.filFil: Quintero, César. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentinaes_AR
dc.description.filFil: Boca, Rosa Teresa. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentinaes_AR
dc.description.filFil: Diaz, Diana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Concordia; Argentinaes_AR
dc.description.filFil: Boschetti, Graciela. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentinaes_AR
dc.description.filFil: Aparicio, Jorge Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bella Vista; Argentinaes_AR
dc.description.filFil: Ingaramo, Luciana And. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Concordia; Argentinaes_AR
dc.subtypecientifico


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