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Resumen
Sulfur (S) fertilization has increasingly become an important issue in crop management. In Argentina S deficiencies have been reported, but there has been no success in finding soil tests for predicting soybean response to S fertilization. The objectives of this study were to: (i) evaluate seed S and N:S ratio as a tool for identifying S deficient soybean crops in field conditions and (ii) determine shifts in stoichiometric relationships among nitrogen [ver mas...]
dc.contributor.authorSalvagiotti, Fernando
dc.contributor.authorFerraris, Gustavo Nestor
dc.contributor.authorQuiroga, Alberto Raul
dc.contributor.authorBarraco, Miriam Raquel
dc.contributor.authorVivas, Hugo Silverio
dc.contributor.authorPrystupa, Pablo
dc.contributor.authorEcheverria, Hernan Eduardo
dc.contributor.authorGutierrez Boem, Flavio Hernán
dc.date.accessioned2018-04-18T12:11:20Z
dc.date.available2018-04-18T12:11:20Z
dc.date.issued2012-08
dc.identifier.issn0378-4290
dc.identifier.otherhttps://doi.org/10.1016/j.fcr.2012.07.011
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0378429012002377#!
dc.identifier.urihttp://hdl.handle.net/20.500.12123/2267
dc.description.abstractSulfur (S) fertilization has increasingly become an important issue in crop management. In Argentina S deficiencies have been reported, but there has been no success in finding soil tests for predicting soybean response to S fertilization. The objectives of this study were to: (i) evaluate seed S and N:S ratio as a tool for identifying S deficient soybean crops in field conditions and (ii) determine shifts in stoichiometric relationships among nitrogen (N), phosphorus (P) and S in soybean seeds which can be used for identifying S responsive sites under field conditions. Seed samples from 20 field experiments designed to explore response to S fertilization in soybean were collected in a large area in the Argentinean Pampas region. Seed yield (SY) and P (%P), S (%S) and N (%N) concentration in seeds were determined. Different data analyses were tested in order to find an S deficiency index. Moderate SY responses to S fertilization were observed in the present study (i.e. relative SY was never below 75%). seed S concentration increased in response to S fertilization in most responsive sites, and N:S ratio was governed by variations in seed S concentration. Stoichiometric relationships were more accurate for identifying S responsive sites than using single variables (e.g. seed S concentration or N:S). The isometric variations among N, P and S suggest that the accumulation of these nutrients is proportional in seed tissue. A significant increase in the intercept of the stoichiometric relationship between N and S in S deficient crops was observed. An S deficient index (SDI) was calculated based on this difference that can be used as a diagnostic tool for identifying S responsive sites in soybean. The present study shows a novel approach for using stoichiometric concepts in fertilizer management in soybean.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceField crops research 135 : 107-115. (August 2012)es_AR
dc.subjectAzufrees_AR
dc.subjectSulphureng
dc.subjectDeficiencia de Mineraleses_AR
dc.subjectMineral Deficiencieseng
dc.subjectSojaes_AR
dc.subjectSoybeanseng
dc.subjectSemillases_AR
dc.subjectSeedeng
dc.subjectNitrógenoes_AR
dc.subjectNitrogeneng
dc.titleIdentifying sulfur deficient fields by using sulfur content; N:S ratio and nutrient stoichiometric relationships in soybean seedses_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.origenEEA Pergamino
dc.description.origenEEA Anguil
dc.description.origenEEA General Villegas
dc.description.origenEEA Rafaela
dc.description.origenEEA Balcarce
dc.description.filFil: Salvagiotti, Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros. Departamento de Agronomía; Argentinaes_AR
dc.description.filFil: Ferraris, Gustavo Nestor. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentinaes_AR
dc.description.filFil: Quiroga, Alberto Raul. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentinaes_AR
dc.description.filFil: Barraco, Miriam Raquel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria General Villegas; Argentinaes_AR
dc.description.filFil: Vivas, Hugo Silverio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentinaes_AR
dc.description.filFil: Prystupa, Pablo. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Pque. Centenario. Instituto de Investigaciones En Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomia. Instituto de Investigaciones En Biociencias Agrícolas y Ambientales; Argentinaes_AR
dc.description.filFil: Echeverria, Hernan Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentinaes_AR
dc.description.filFil: Gutiérrez Boem, Flavio Hernán. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Pque. Centenario. Instituto de Investigaciones En Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomia. Instituto de Investigaciones En Biociencias Agrícolas y Ambientales; Argentinaes_AR
dc.subtypecientifico


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