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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
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dc.contributor.author | Appelhans, Stefania Carolina | |
dc.contributor.author | Barbagelata, Pedro Anibal | |
dc.contributor.author | Melchiori, Ricardo Jose | |
dc.contributor.author | Gutierrez Boem, Flavio Hernán | |
dc.date.accessioned | 2021-01-27T17:11:32Z | |
dc.date.available | 2021-01-27T17:11:32Z | |
dc.date.issued | 2021-01-07 | |
dc.identifier.citation | Appelhans, 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/s42729-020-00387-8 | es_AR |
dc.identifier.issn | 0718-9508 | |
dc.identifier.issn | 0718-9516 (Online) | |
dc.identifier.other | https://doi.org/10.1007/s42729-020-00387-8 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/8657 | |
dc.identifier.uri | https://link.springer.com/article/10.1007%2Fs42729-020-00387-8 | |
dc.description.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 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.format | application/pdf | eng |
dc.language.iso | eng | |
dc.publisher | Springer | es_AR |
dc.rights | info:eu-repo/semantics/restrictedAccess | eng |
dc.source | Journal of soil science and plant nutrition (2021) | eng |
dc.subject | Maize | eng |
dc.subject | Maíz | es_AR |
dc.subject | Plant Response | eng |
dc.subject | Respuesta de la Planta | es_AR |
dc.subject | Organic Phosphorus | eng |
dc.subject | Fosforo Orgánico | es_AR |
dc.subject.other | Bray1-P | eng |
dc.title | Is the lack of response of maize to fertilization in soils with low Bray1-p related to labile organic phosphorus? | 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 Paraná | es_AR |
dc.description.fil | Fil: Appelhans, Estefania Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina | es_AR |
dc.description.fil | Fil: Appelhans, Estefania Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina | es_AR |
dc.description.fil | Fil: Appelhans, Estefania Carolina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina | es_AR |
dc.description.fil | Fil: Barbagelata, Pedro Anibal. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina | es_AR |
dc.description.fil | Fil: Barbagelata, Pedro Anibal. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina. | es_AR |
dc.description.fil | Fil: Melchiori, Ricardo Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina | es_AR |
dc.description.fil | Fil: Gutiérrez Boem, Flavio Hernán. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; Argentina. | es_AR |
dc.description.fil | Fil: 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; Argentina | es_AR |
dc.subtype | cientifico |
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