New insights into soybean biological nitrogen fixation
Soybean biological N2 fixation (BNF) relationships with fertilizer N and yield response have been comprehensively reviewed in the scientific literature. However, the study of the N-gap between N uptake and N supplied by N2 fixation, and the partial N balance (fixed N in aboveground biomass – N seeds...
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| Format: | Artículo |
| Language: | Inglés |
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American Society of Agronomy
2019
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| Online Access: | https://dl.sciencesocieties.org/publications/aj/abstracts/110/4/1185 http://hdl.handle.net/20.500.12123/5473 https://doi.org/10.2134/agronj2017.06.0348 |
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| author | Ciampitti, Ignacio A. Salvagiotti, Fernando |
| author_browse | Ciampitti, Ignacio A. Salvagiotti, Fernando |
| author_facet | Ciampitti, Ignacio A. Salvagiotti, Fernando |
| author_sort | Ciampitti, Ignacio A. |
| collection | INTA Digital |
| description | Soybean biological N2 fixation (BNF) relationships with fertilizer N and yield response have been comprehensively reviewed in the scientific literature. However, the study of the N-gap between N uptake and N supplied by N2 fixation, and the partial N balance (fixed N in aboveground biomass – N seeds) needs further investigation. Therefore, the goals of this synthesis–analysis were to (i) quantify seed production per unit of fixed N under different amounts of N derived from the atmosphere (NDFA, %), (ii) study the N-gap and explore limitations of N2 fixation (kg ha–1) for satisfying plant N demand, and (iii) calculate a partial N balance for soybean and determine its relationship with the N2 fixation process. Data was gathered from 1955 through 2016 using studies reporting BNF, seed yield, and plant N uptake (n = 733 data points). The main outcomes of this review were (i) as NDFA increased, seed production per N2 fixation decreased (from 0.033 to 0.017 Mg yield kg–1 N from low, 28%, to high, 80%, NDFA); (ii) N-gap increased faster when NDFA values were above 80% and after plant N content was above 370 kg N ha–1 suggesting that the crop needs additional N for coping yield potential; and (iii) when excluding roots, the partial N balance calculation revealed negative values across all NDFA levels. Future studies should consider a holistic approach to quantify the contribution of BNF in overall N cycling, including N contribution from roots, and to better understand the soil × plant × rhizobia interactions. |
| format | Artículo |
| id | INTA5473 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | American Society of Agronomy |
| publisherStr | American Society of Agronomy |
| record_format | dspace |
| spelling | INTA54732019-07-11T11:57:16Z New insights into soybean biological nitrogen fixation Ciampitti, Ignacio A. Salvagiotti, Fernando Soja Nitrógeno Fijación Biológica del Nitrógeno Rendimiento Soybeans Nitrogen Biological Nitrogen Fixation Yields Soybean biological N2 fixation (BNF) relationships with fertilizer N and yield response have been comprehensively reviewed in the scientific literature. However, the study of the N-gap between N uptake and N supplied by N2 fixation, and the partial N balance (fixed N in aboveground biomass – N seeds) needs further investigation. Therefore, the goals of this synthesis–analysis were to (i) quantify seed production per unit of fixed N under different amounts of N derived from the atmosphere (NDFA, %), (ii) study the N-gap and explore limitations of N2 fixation (kg ha–1) for satisfying plant N demand, and (iii) calculate a partial N balance for soybean and determine its relationship with the N2 fixation process. Data was gathered from 1955 through 2016 using studies reporting BNF, seed yield, and plant N uptake (n = 733 data points). The main outcomes of this review were (i) as NDFA increased, seed production per N2 fixation decreased (from 0.033 to 0.017 Mg yield kg–1 N from low, 28%, to high, 80%, NDFA); (ii) N-gap increased faster when NDFA values were above 80% and after plant N content was above 370 kg N ha–1 suggesting that the crop needs additional N for coping yield potential; and (iii) when excluding roots, the partial N balance calculation revealed negative values across all NDFA levels. Future studies should consider a holistic approach to quantify the contribution of BNF in overall N cycling, including N contribution from roots, and to better understand the soil × plant × rhizobia interactions. EEA Oliveros Fil: Ciampitti, Ignacio A. Kansas State University. Department of Agronomy; Estados Unidos Fil: Salvagiotti, Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros. Departamento de Agronomía; Argentina 2019-07-11T11:55:48Z 2019-07-11T11:55:48Z 2018-08 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://dl.sciencesocieties.org/publications/aj/abstracts/110/4/1185 http://hdl.handle.net/20.500.12123/5473 0002-1962 1435-0645 https://doi.org/10.2134/agronj2017.06.0348 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf American Society of Agronomy Agronomy Journal 110 (4) : 1185-1196 (2018) |
| spellingShingle | Soja Nitrógeno Fijación Biológica del Nitrógeno Rendimiento Soybeans Nitrogen Biological Nitrogen Fixation Yields Ciampitti, Ignacio A. Salvagiotti, Fernando New insights into soybean biological nitrogen fixation |
| title | New insights into soybean biological nitrogen fixation |
| title_full | New insights into soybean biological nitrogen fixation |
| title_fullStr | New insights into soybean biological nitrogen fixation |
| title_full_unstemmed | New insights into soybean biological nitrogen fixation |
| title_short | New insights into soybean biological nitrogen fixation |
| title_sort | new insights into soybean biological nitrogen fixation |
| topic | Soja Nitrógeno Fijación Biológica del Nitrógeno Rendimiento Soybeans Nitrogen Biological Nitrogen Fixation Yields |
| url | https://dl.sciencesocieties.org/publications/aj/abstracts/110/4/1185 http://hdl.handle.net/20.500.12123/5473 https://doi.org/10.2134/agronj2017.06.0348 |
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