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Abstract
The usual soil test phosphorus (P) neglects the P supply from labile organic P (Po) fractions, which could explain the nonresponse of maize (Zea mays L.) in sites with soil P testing below the critical level. We aim to determine Po and inorganic P (Pi) in NaHCO3 extracts and in the coarse soil fraction (hereinafter, CF) from responsive and nonresponsive sites to P fertilization in maize. We then compare the classification errors of the Cate and Nelson [ver mas...]
dc.contributor.authorAppelhans, Estefania Carolina
dc.contributor.authorBarbagelata, Pedro Anibal
dc.contributor.authorMelchiori, Ricardo Jose
dc.contributor.authorGutierrez Boem, Flavio Hernán
dc.date.accessioned2021-01-27T17:11:32Z
dc.date.available2021-01-27T17:11:32Z
dc.date.issued2021-01-07
dc.identifier.citationAppelhans, S.C., Barbagelata, P.A., Melchiori, R.J.M. et al. Is the Lack of Response of Maize to Fertilization in Soils with Low Bray1-P Related to Labile Organic Phosphorus?. J Soil Sci Plant Nutr (2021). https://doi.org/10.1007/s42729-020-00387-8es_AR
dc.identifier.issn0718-9508
dc.identifier.issn0718-9516 (Online)
dc.identifier.otherhttps://doi.org/10.1007/s42729-020-00387-8
dc.identifier.urihttp://hdl.handle.net/20.500.12123/8657
dc.identifier.urihttps://link.springer.com/article/10.1007%2Fs42729-020-00387-8
dc.description.abstractThe usual soil test phosphorus (P) neglects the P supply from labile organic P (Po) fractions, which could explain the nonresponse of maize (Zea mays L.) in sites with soil P testing below the critical level. We aim to determine Po and inorganic P (Pi) in NaHCO3 extracts and in the coarse soil fraction (hereinafter, CF) from responsive and nonresponsive sites to P fertilization in maize. We then compare the classification errors of the Cate and Nelson method by comparing the relationship between maize relative yield and the soil Bray1-P concentration vs. the new proposed indices. The study included responsive and nonresponsive sites to P fertilization carried out across the Pampas Region in the center-east of Argentina. Treatments included four P fertilization rates: 0, 12, 24, and 36 kg P ha−1. The experiments were laid out in a randomized complete block design with three replicates. We determined Bray1-P, Pi, and Po in NaHCO3 extracts and in the coarse soil fraction. Sites non-responsive to P fertilization and with Bray1-P concentrations below the critical level showed 70% more Po in the coarse soil fraction (Po-CF) than sites with high crop response and similar Bray1-P level. However, Po-Bic alone did not improve the relationship with maize relative yield. Po-CF and Bray1-P included in a soil integrative P index improved the prediction of crop response to P fertilization and reduced classification errors, which suggests that Po-CF is a source of available P for the crops. The novelty reported in this study was to demonstrate the organic P contribution to relative yield by including it into an integrative soil testing. We find that nonresponsive sites to P fertilization, with low Bray1-P, were correctly classified when including Po-CF in a new soil test P. Improvements in the P fertilization diagnostic prescription tool contribute to an increase in economic profit and reduce environmental impact.eng
dc.formatapplication/pdfeng
dc.language.isoeng
dc.publisherSpringeres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesseng
dc.sourceJournal of soil science and plant nutrition (2021)eng
dc.subjectMaizeeng
dc.subjectMaízes_AR
dc.subjectPlant Responseeng
dc.subjectRespuesta de la Plantaes_AR
dc.subjectOrganic Phosphoruseng
dc.subjectFosforo Orgánicoes_AR
dc.subject.otherBray1-Peng
dc.titleIs the lack of response of maize to fertilization in soils with low Bray1-p related to labile organic phosphorus?eng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.description.origenEEA Paranáes_AR
dc.description.filFil: Appelhans, Estefania Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentinaes_AR
dc.description.filFil: Appelhans, Estefania Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentinaes_AR
dc.description.filFil: Appelhans, Estefania Carolina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentinaes_AR
dc.description.filFil: Barbagelata, Pedro Anibal. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentinaes_AR
dc.description.filFil: Barbagelata, Pedro Anibal. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina.es_AR
dc.description.filFil: Melchiori, Ricardo Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentinaes_AR
dc.description.filFil: Gutiérrez Boem, Flavio Hernán. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; Argentina.es_AR
dc.description.filFil: Gutiérrez Boem, Flavio Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales; Argentinaes_AR
dc.subtypecientifico


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