Relative importance of biological nitrogen fixation and mineral uptake in high yielding soybean cultivars
Backgrounds and aims: Soybean yield depends on total N uptake, N use efficiency, and harvest index. Nitrogen uptake relays on biological fixation (BNF) and soil absorption. Usually, BNF is considered a yield-related process. However, there is limited information on whether maximizing percent BNF (%B...
| Autores principales: | , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | https://link.springer.com/article/10.1007/s11104-017-3279-9 http://hdl.handle.net/20.500.12123/2266 https://doi.org/10.1007/s11104-017-3279-9 |
| _version_ | 1855034933155725312 |
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| author | Santachiara, Gabriel Borrás, Lucas Salvagiotti, Fernando Gerde, José Arnaldo Rotundo, José Luis |
| author_browse | Borrás, Lucas Gerde, José Arnaldo Rotundo, José Luis Salvagiotti, Fernando Santachiara, Gabriel |
| author_facet | Santachiara, Gabriel Borrás, Lucas Salvagiotti, Fernando Gerde, José Arnaldo Rotundo, José Luis |
| author_sort | Santachiara, Gabriel |
| collection | INTA Digital |
| description | Backgrounds and aims: Soybean yield depends on total N uptake, N use efficiency, and harvest index. Nitrogen uptake relays on biological fixation (BNF) and soil absorption. Usually, BNF is considered a yield-related process. However, there is limited information on whether maximizing percent BNF (%BNF) is actually required to maximize N uptake and yield.
Methods: Seventy cultivars were evaluated for total N uptake, N use efficiency, and harvest index. Biological N fixation was determined in a subset of cultivars. The harvest index of N derived from atmosphere and from soil was also assessed.
Results: Yield was positively associated with total N uptake. Highest N uptake was not linked to increased %BNF. An inverse relationship between the amount of BNF (kgBNF) and soil N absorption was observed. Harvest index of N derived from BNF was 85%, while it was 77% for N derived from soil.
Conclusions: Highest total N uptake was attained by different combinations of kgBNF and mineral soil N absorption. This showed that maximizing %BNF is not required to maximize yield. High %BNF played a pivotal role in determining neutral soil N balance. This is so even though N derived from BNF was more partitioned to seeds than N derived from soil. |
| format | info:ar-repo/semantics/artículo |
| id | INTA2266 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA22662018-04-18T11:46:50Z Relative importance of biological nitrogen fixation and mineral uptake in high yielding soybean cultivars Santachiara, Gabriel Borrás, Lucas Salvagiotti, Fernando Gerde, José Arnaldo Rotundo, José Luis Fijación Biológica del Nitrógeno Soja Rendimiento Minerales Nitrógeno Biological Nitrogen Fixation Soybeans Yields Minerals Nitrogen Backgrounds and aims: Soybean yield depends on total N uptake, N use efficiency, and harvest index. Nitrogen uptake relays on biological fixation (BNF) and soil absorption. Usually, BNF is considered a yield-related process. However, there is limited information on whether maximizing percent BNF (%BNF) is actually required to maximize N uptake and yield. Methods: Seventy cultivars were evaluated for total N uptake, N use efficiency, and harvest index. Biological N fixation was determined in a subset of cultivars. The harvest index of N derived from atmosphere and from soil was also assessed. Results: Yield was positively associated with total N uptake. Highest N uptake was not linked to increased %BNF. An inverse relationship between the amount of BNF (kgBNF) and soil N absorption was observed. Harvest index of N derived from BNF was 85%, while it was 77% for N derived from soil. Conclusions: Highest total N uptake was attained by different combinations of kgBNF and mineral soil N absorption. This showed that maximizing %BNF is not required to maximize yield. High %BNF played a pivotal role in determining neutral soil N balance. This is so even though N derived from BNF was more partitioned to seeds than N derived from soil. EEA Oliveros Fil: Santachiara, Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Investigaciones en Ciencias Agrarias de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Instituto de Investigaciones en Ciencias Agrarias de Rosario; Argentina Fil: Borrás, Lucas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Investigaciones en Ciencias Agrarias de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Instituto de Investigaciones en Ciencias Agrarias de Rosario; Argentina Fil: Salvagiotti, Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros. Departamento de Agronomía; Argentina Fil: Gerde, José Arnaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Investigaciones en Ciencias Agrarias de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Instituto de Investigaciones en Ciencias Agrarias de Rosario; Argentina Fil: Rotundo, José Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Investigaciones en Ciencias Agrarias de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Instituto de Investigaciones en Ciencias Agrarias de Rosario; Argentina 2018-04-18T11:44:32Z 2018-04-18T11:44:32Z 2017-09 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://link.springer.com/article/10.1007/s11104-017-3279-9 http://hdl.handle.net/20.500.12123/2266 0032-079X 1573-5036 https://doi.org/10.1007/s11104-017-3279-9 eng info:eu-repo/semantics/restrictedAccess application/pdf Plant and Soil 418 (1–2) : 191–203 (September 2017) |
| spellingShingle | Fijación Biológica del Nitrógeno Soja Rendimiento Minerales Nitrógeno Biological Nitrogen Fixation Soybeans Yields Minerals Nitrogen Santachiara, Gabriel Borrás, Lucas Salvagiotti, Fernando Gerde, José Arnaldo Rotundo, José Luis Relative importance of biological nitrogen fixation and mineral uptake in high yielding soybean cultivars |
| title | Relative importance of biological nitrogen fixation and mineral uptake in high yielding soybean cultivars |
| title_full | Relative importance of biological nitrogen fixation and mineral uptake in high yielding soybean cultivars |
| title_fullStr | Relative importance of biological nitrogen fixation and mineral uptake in high yielding soybean cultivars |
| title_full_unstemmed | Relative importance of biological nitrogen fixation and mineral uptake in high yielding soybean cultivars |
| title_short | Relative importance of biological nitrogen fixation and mineral uptake in high yielding soybean cultivars |
| title_sort | relative importance of biological nitrogen fixation and mineral uptake in high yielding soybean cultivars |
| topic | Fijación Biológica del Nitrógeno Soja Rendimiento Minerales Nitrógeno Biological Nitrogen Fixation Soybeans Yields Minerals Nitrogen |
| url | https://link.springer.com/article/10.1007/s11104-017-3279-9 http://hdl.handle.net/20.500.12123/2266 https://doi.org/10.1007/s11104-017-3279-9 |
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