Mostrar el registro sencillo del ítem

resumen

Resumen
Aims: Most studies that quantified the biological N fixation (BNF) and partial N balances of soybean have ignored the belowground structures. Our objectives were to evaluate the contribution of belowground structures to the partial N balance of soybean and to identify the origin (soil or BNF) and source (apparent remobilization or current gain during the seed-filling period) of seed N. Methods: Biomass, BNF, and N uptake coming from different N sources [ver mas...]
dc.contributor.authorKehoe, Esteban
dc.contributor.authorRubio, Gerardo
dc.contributor.authorSalvagiotti, Fernando
dc.date.accessioned2022-04-21T13:14:01Z
dc.date.available2022-04-21T13:14:01Z
dc.date.issued2022-04
dc.identifier.issn0032-079X
dc.identifier.issn1573-5036
dc.identifier.otherhttps://doi.org/10.1007/s11104-022-05418-0
dc.identifier.urihttp://hdl.handle.net/20.500.12123/11699
dc.identifier.urihttps://link.springer.com/article/10.1007/s11104-022-05418-0
dc.description.abstractAims: Most studies that quantified the biological N fixation (BNF) and partial N balances of soybean have ignored the belowground structures. Our objectives were to evaluate the contribution of belowground structures to the partial N balance of soybean and to identify the origin (soil or BNF) and source (apparent remobilization or current gain during the seed-filling period) of seed N. Methods: Biomass, BNF, and N uptake coming from different N sources and origins, including belowground structures, were quantified in a two-year field study involving two soybean genotypes (MG IV and V) and two water availability conditions (rainfed and irrigated). Results: The inclusion of BNF-derived N present in belowground components (which averaged +12 kg N ha−1 at R7) changed the results of the partial N balances from negative to positive. BNF was the main origin of seed N, accounting for 73 and 79% of seed N under water stressed and non-stressed conditions, respectively. Regarding the seed N source, apparent remobilization was the main contributor to seed N under water stress, whereas current N gain was the main contributor to seed N in unstressed plants. Conclusions: We conclude that i) the root system retains a relevant proportion of the atmospheric N fixed during the crop cycle and should be included in the partial N balance estimations; and ii) BNF is the main origin of seed N, even under contrasting growing conditions.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherSpringeres_AR
dc.relationinfo:eu-repograntAgreement/INTA/PNCYO-1127033/AR./Manejo nutricional de cereales y oleaginosas para la intensificación sustentable de los sistemas productivoses_AR
dc.relationinfo:eu-repograntAgreement/INTA/2019-PE-E1-I011-001/2019-PE-E1-I011-001/AR./Intensificacion Sustentable de la Agricultura en la Region Pampeanaes_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourcePlant and Soil (Published: 15 April 2022)es_AR
dc.subjectSojaes_AR
dc.subjectSoybeanseng
dc.subjectNitrógenoes_AR
dc.subjectNitrogeneng
dc.subjectBiomasa sobre el Sueloes_AR
dc.subjectAbove Ground Biomasseng
dc.subjectBiomasa por debajo del Sueloes_AR
dc.subjectBelow Ground Biomasseng
dc.subjectFijación Biológica del Nitrógenoes_AR
dc.subjectBiological Nitrogen Fixationeng
dc.titleContribution of different sources and origins of nitrogen in above- and below-ground structures to the partial nitrogen balance in soybeanes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Oliveroses_AR
dc.description.filFil: Kehoe, Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros; Argentinaes_AR
dc.description.filFil: Kehoe, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Rubio, Gerardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Parque Centenario. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales; Argentinaes_AR
dc.description.filFil: Rubio, Gerardo. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales; Argentinaes_AR
dc.description.filFil: Rubio, Gerardo. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad de Suelos y Fertilización; Argentinaes_AR
dc.description.filFil: Salvagiotti, Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros; Argentinaes_AR
dc.description.filFil: Salvagiotti, Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.subtypecientifico


Ficheros en el ítem

Thumbnail

Este ítem aparece en la(s) siguiente(s) colección(ones)

common

Mostrar el registro sencillo del ítem