Is the lack of response of maize to fertilization in soils with low Bray1-p related to labile organic phosphorus?
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 fract...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Springer
2021
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| Online Access: | http://hdl.handle.net/20.500.12123/8657 https://link.springer.com/article/10.1007%2Fs42729-020-00387-8 https://doi.org/10.1007/s42729-020-00387-8 |
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| author | Appelhans, Stefania Carolina Barbagelata, Pedro Anibal Melchiori, Ricardo Jose Gutierrez Boem, Flavio Hernán |
| author_browse | Appelhans, Stefania Carolina Barbagelata, Pedro Anibal Gutierrez Boem, Flavio Hernán Melchiori, Ricardo Jose |
| author_facet | Appelhans, Stefania Carolina Barbagelata, Pedro Anibal Melchiori, Ricardo Jose Gutierrez Boem, Flavio Hernán |
| author_sort | Appelhans, Stefania Carolina |
| collection | INTA Digital |
| description | 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. |
| format | info:ar-repo/semantics/artículo |
| id | INTA8657 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA86572023-11-13T17:35:19Z Is the lack of response of maize to fertilization in soils with low Bray1-p related to labile organic phosphorus? Appelhans, Stefania Carolina Barbagelata, Pedro Anibal Melchiori, Ricardo Jose Gutierrez Boem, Flavio Hernán Maize Plant Response Organic Phosphorus Maíz Respuesta de la Planta Fosforo Orgánico Bray1-P 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. EEA Paraná Fil: Appelhans, Estefania Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina Fil: Appelhans, Estefania Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina Fil: Appelhans, Estefania Carolina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina Fil: Barbagelata, Pedro Anibal. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina Fil: Barbagelata, Pedro Anibal. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina. Fil: Melchiori, Ricardo Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina Fil: Gutiérrez Boem, Flavio Hernán. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; Argentina. 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 2021-01-27T17:11:32Z 2021-01-27T17:11:32Z 2021-01-07 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/8657 https://link.springer.com/article/10.1007%2Fs42729-020-00387-8 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 0718-9508 0718-9516 (Online) https://doi.org/10.1007/s42729-020-00387-8 eng info:eu-repo/semantics/restrictedAccess application/pdf Springer Journal of soil science and plant nutrition (2021) |
| spellingShingle | Maize Plant Response Organic Phosphorus Maíz Respuesta de la Planta Fosforo Orgánico Bray1-P Appelhans, Stefania Carolina Barbagelata, Pedro Anibal Melchiori, Ricardo Jose Gutierrez Boem, Flavio Hernán Is the lack of response of maize to fertilization in soils with low Bray1-p related to labile organic phosphorus? |
| title | Is the lack of response of maize to fertilization in soils with low Bray1-p related to labile organic phosphorus? |
| title_full | Is the lack of response of maize to fertilization in soils with low Bray1-p related to labile organic phosphorus? |
| title_fullStr | Is the lack of response of maize to fertilization in soils with low Bray1-p related to labile organic phosphorus? |
| title_full_unstemmed | Is the lack of response of maize to fertilization in soils with low Bray1-p related to labile organic phosphorus? |
| title_short | Is the lack of response of maize to fertilization in soils with low Bray1-p related to labile organic phosphorus? |
| title_sort | is the lack of response of maize to fertilization in soils with low bray1 p related to labile organic phosphorus |
| topic | Maize Plant Response Organic Phosphorus Maíz Respuesta de la Planta Fosforo Orgánico Bray1-P |
| url | http://hdl.handle.net/20.500.12123/8657 https://link.springer.com/article/10.1007%2Fs42729-020-00387-8 https://doi.org/10.1007/s42729-020-00387-8 |
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