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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
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dc.contributor.author | Collino, Daniel | |
dc.contributor.author | Salvagiotti, Fernando | |
dc.contributor.author | Perticari, Alejandro | |
dc.contributor.author | Piccinetti, Carlos Fabian | |
dc.contributor.author | Ovando, G. | |
dc.contributor.author | Urquiaga, S. | |
dc.contributor.author | Racca, Roberto Walter | |
dc.date.accessioned | 2018-04-18T16:55:03Z | |
dc.date.available | 2018-04-18T16:55:03Z | |
dc.date.issued | 2015-07 | |
dc.identifier.issn | 0032-079X | |
dc.identifier.issn | 1573-5036 | |
dc.identifier.other | https://doi.org/10.1007/s11104-015-2459-8 | |
dc.identifier.uri | https://link.springer.com/article/10.1007/s11104-015-2459-8 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/2272 | |
dc.description.abstract | 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 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.format | application/pdf | eng |
dc.language.iso | eng | |
dc.rights | info:eu-repo/semantics/restrictedAccess | eng |
dc.source | Plant and soil 392 (1–2) : 239–252. (July 2015) | eng |
dc.subject | Soja | es_AR |
dc.subject | Soybeans | eng |
dc.subject | Fijación Biológica del Nitrógeno | es_AR |
dc.subject | Biological Nitrogen Fixation | eng |
dc.subject | Suelo | es_AR |
dc.subject | Soil | eng |
dc.subject | Condiciones Atmosféricas | es_AR |
dc.subject | Meteorological Factors | eng |
dc.subject | Nitrógeno | es_AR |
dc.subject | Nitrogen | eng |
dc.subject.other | Argentina | es_AR |
dc.subject.other | Factores Meteorológicos | es_AR |
dc.title | Biological nitrogen fixation in soybean in Argentina: relationships with crop, soil, and meteorological factors | eng |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | eng |
dc.description.origen | EEA Oliveros | es_AR |
dc.description.origen | Instituto de Fisiología y Recursos Genéticos Vegetales | |
dc.description.origen | Instituto de Microbiología y Zoología Agrícola | |
dc.description.fil | Fil: Collino, Daniel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina | es_AR |
dc.description.fil | Fil: Salvagiotti, Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros. Departamento de Agronomía; Argentina | es_AR |
dc.description.fil | Fil: Perticari, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina | es_AR |
dc.description.fil | Fil: Piccinetti, Carlos Fabian. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola; Argentina | es_AR |
dc.description.fil | Fil: Ovando, G. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias. Climatología Agrícola; Argentina | es_AR |
dc.description.fil | Fil: Urquiaga, S. Embrapa Agrobiologia; Brasil | es_AR |
dc.description.fil | Fil: Racca, Roberto Walter. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina | es_AR |
dc.subtype | cientifico |
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