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Aims: This study aims to (i) asses the contribution of biological N fixation (%Ndfa) in the soybean production area of Argentina, (ii) build a model for predicting %Ndfa using crop, soil, and meteorological variables, and (iii) estimate %Ndfa at the country level using values obtained in this study. Methods: %Ndfa was assessed in paddocks and experimental plots located in an area 22–39° S and 56–66° W. %Ndfa was determined using the natural 15N abundance [ver mas...]
dc.contributor.authorCollino, Daniel
dc.contributor.authorSalvagiotti, Fernando
dc.contributor.authorPerticari, Alejandro
dc.contributor.authorPiccinetti, Carlos Fabian
dc.contributor.authorOvando, G.
dc.contributor.authorUrquiaga, S.
dc.contributor.authorRacca, Roberto Walter
dc.date.accessioned2018-04-18T16:55:03Z
dc.date.available2018-04-18T16:55:03Z
dc.date.issued2015-07
dc.identifier.issn0032-079X
dc.identifier.issn1573-5036
dc.identifier.otherhttps://doi.org/10.1007/s11104-015-2459-8
dc.identifier.urihttps://link.springer.com/article/10.1007/s11104-015-2459-8
dc.identifier.urihttp://hdl.handle.net/20.500.12123/2272
dc.description.abstractAims: This study aims to (i) asses the contribution of biological N fixation (%Ndfa) in the soybean production area of Argentina, (ii) build a model for predicting %Ndfa using crop, soil, and meteorological variables, and (iii) estimate %Ndfa at the country level using values obtained in this study. Methods: %Ndfa was assessed in paddocks and experimental plots located in an area 22–39° S and 56–66° W. %Ndfa was determined using the natural 15N abundance method. A complete data set of soil and meteorological variables (n–47) was used to develop a model for predicting %Ndfa. Results: A median value of %Ndfa in aboveground biomass of 60 % (interquartile range 46–71 %) was estimated. Larger %Ndfa values were observed in areas with high crops yields. When seed yield was above 3.7 Mg ha−1, effective rainfall during fallow and mean temperature in the seed-filling period explained %Ndfa. Below 3.7 Mg ha−1, soil phosphorus content, pH, and effective rainfall in the vegetative period explicated %Ndfa. Conclusions: Soybean production systems in Argentina showed larger %Ndfa than reported values in literature that may affect global N balances. Identified soil and meteorological variables may be useful for predicting %Ndfa in future studies, taking into account their spatial variation in the soil-plant system.eng
dc.formatapplication/pdfeng
dc.language.isoeng
dc.rightsinfo:eu-repo/semantics/restrictedAccesseng
dc.sourcePlant and soil 392 (1–2) : 239–252. (July 2015)eng
dc.subjectSojaes_AR
dc.subjectSoybeanseng
dc.subjectFijación Biológica del Nitrógenoes_AR
dc.subjectBiological Nitrogen Fixationeng
dc.subjectSueloes_AR
dc.subjectSoileng
dc.subjectCondiciones Atmosféricases_AR
dc.subjectMeteorological Factorseng
dc.subjectNitrógenoes_AR
dc.subjectNitrogeneng
dc.subject.otherArgentinaes_AR
dc.subject.otherFactores Meteorológicoses_AR
dc.titleBiological nitrogen fixation in soybean in Argentina: relationships with crop, soil, and meteorological factorseng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.description.origenEEA Oliveroses_AR
dc.description.origenInstituto de Fisiología y Recursos Genéticos Vegetales
dc.description.origenInstituto de Microbiología y Zoología Agrícola
dc.description.filFil: Collino, Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentinaes_AR
dc.description.filFil: Salvagiotti, Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros. Departamento de Agronomía; Argentinaes_AR
dc.description.filFil: Perticari, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentinaes_AR
dc.description.filFil: Piccinetti, Carlos Fabian. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentinaes_AR
dc.description.filFil: Ovando, G. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias. Climatología Agrícola; Argentinaes_AR
dc.description.filFil: Urquiaga, S. Embrapa Agrobiologia; Brasiles_AR
dc.description.filFil: Racca, Roberto Walter. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentinaes_AR
dc.subtypecientifico


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