Exploring nitrogen limitation for historical and modern soybean genotypes
The United States (USA) and Argentina (ARG) account for over 50% of the global soybean [Glycine max (L.) Merr.] production. Soybean N demand is partially met (50–60%) by the biological nitrogen fixation (BNF) process; however, an unanswered scientific knowledge gap exists on the ability of the BNF p...
| Autores principales: | , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
American Society of Agronomy
2019
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| Materias: | |
| Acceso en línea: | https://dl.sciencesocieties.org/publications/aj/abstracts/110/5/2080 http://hdl.handle.net/20.500.12123/5461 https://doi.org/10.2134/agronj2018.04.0271 |
| _version_ | 1855035503027421184 |
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| author | Ortez, O.A. Salvagiotti, Fernando Enrico, Juan Martin Prasad, P.V.V. Armstrong, P. Ciampitti, Ignacio A. |
| author_browse | Armstrong, P. Ciampitti, Ignacio A. Enrico, Juan Martin Ortez, O.A. Prasad, P.V.V. Salvagiotti, Fernando |
| author_facet | Ortez, O.A. Salvagiotti, Fernando Enrico, Juan Martin Prasad, P.V.V. Armstrong, P. Ciampitti, Ignacio A. |
| author_sort | Ortez, O.A. |
| collection | INTA Digital |
| description | The United States (USA) and Argentina (ARG) account for over 50% of the global soybean [Glycine max (L.) Merr.] production. Soybean N demand is partially met (50–60%) by the biological nitrogen fixation (BNF) process; however, an unanswered scientific knowledge gap exists on the ability of the BNF process to fulfill soybean N demand at varying yield levels. The overall objective of this study is to explore the potential N limitation using different N strategies for historical and modern soybean genotypes. Four field experiments were conducted during 2016 and 2017 growing seasons in Kansas (USA) and Santa Fe (ARG). Twenty-one historical and modern soybean genotypes released from the 1980s to 2010s were tested under three N treatments: (i) control, without N application (Zero-N); (ii) 56 kg N ha–1 applied at R3-R4 growth stages (Late-N); and (iii) 670 kg ha–1 equally split at planting, R1, and R3–R4 growth stages (Full-N). Historical soybean yield gains, from the 1980s to 2010s, were 29% in the USA and 21% in ARG. Following the yield trend, seed N content increased for modern genotypes in parallel to the reduction on seed protein concentration. Regarding N treatments, Full-N produced 12% yield increase in the USA and 4% in ARG. Yield improvement was mainly related to increases in aboveground biomass, seed number (genotype effect), and to a lesser extent, to seed weight (N effect). This study suggests a potential N limitation for soybean, although there are still questions about the way in which N must be provided to the plant. |
| format | info:ar-repo/semantics/artículo |
| id | INTA5461 |
| 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 | INTA54612019-07-10T13:45:24Z Exploring nitrogen limitation for historical and modern soybean genotypes Ortez, O.A. Salvagiotti, Fernando Enrico, Juan Martin Prasad, P.V.V. Armstrong, P. Ciampitti, Ignacio A. Soja Genotipos Nitrógeno Fijación Biológica del Nitrógeno Soybeans Genotypes Nitrogen Biological Nitrogen Fixation The United States (USA) and Argentina (ARG) account for over 50% of the global soybean [Glycine max (L.) Merr.] production. Soybean N demand is partially met (50–60%) by the biological nitrogen fixation (BNF) process; however, an unanswered scientific knowledge gap exists on the ability of the BNF process to fulfill soybean N demand at varying yield levels. The overall objective of this study is to explore the potential N limitation using different N strategies for historical and modern soybean genotypes. Four field experiments were conducted during 2016 and 2017 growing seasons in Kansas (USA) and Santa Fe (ARG). Twenty-one historical and modern soybean genotypes released from the 1980s to 2010s were tested under three N treatments: (i) control, without N application (Zero-N); (ii) 56 kg N ha–1 applied at R3-R4 growth stages (Late-N); and (iii) 670 kg ha–1 equally split at planting, R1, and R3–R4 growth stages (Full-N). Historical soybean yield gains, from the 1980s to 2010s, were 29% in the USA and 21% in ARG. Following the yield trend, seed N content increased for modern genotypes in parallel to the reduction on seed protein concentration. Regarding N treatments, Full-N produced 12% yield increase in the USA and 4% in ARG. Yield improvement was mainly related to increases in aboveground biomass, seed number (genotype effect), and to a lesser extent, to seed weight (N effect). This study suggests a potential N limitation for soybean, although there are still questions about the way in which N must be provided to the plant. EEA Oliveros Fil: Ortez, O.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 Fil: Enrico, Juan Martin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros. Departamento de Agronomía; Argentina Fil: Prasad, P.V.V. Kansas State University. Department of Agronomy; Estados Unidos. USDA-ARS. Center for Grain and Animal Health Research; Estados Unidos Fil: Armstrong, P. USDA-ARS. Center for Grain and Animal Health Research; Estados Unidos Fil: Ciampitti, Ignacio A. Kansas State University. Department of Agronomy; Estados Unidos 2019-07-10T13:44:06Z 2019-07-10T13:44:06Z 2018-10 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://dl.sciencesocieties.org/publications/aj/abstracts/110/5/2080 http://hdl.handle.net/20.500.12123/5461 0002-1962 1435-0645 https://doi.org/10.2134/agronj2018.04.0271 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 (5) : 2080-2090 (2018) |
| spellingShingle | Soja Genotipos Nitrógeno Fijación Biológica del Nitrógeno Soybeans Genotypes Nitrogen Biological Nitrogen Fixation Ortez, O.A. Salvagiotti, Fernando Enrico, Juan Martin Prasad, P.V.V. Armstrong, P. Ciampitti, Ignacio A. Exploring nitrogen limitation for historical and modern soybean genotypes |
| title | Exploring nitrogen limitation for historical and modern soybean genotypes |
| title_full | Exploring nitrogen limitation for historical and modern soybean genotypes |
| title_fullStr | Exploring nitrogen limitation for historical and modern soybean genotypes |
| title_full_unstemmed | Exploring nitrogen limitation for historical and modern soybean genotypes |
| title_short | Exploring nitrogen limitation for historical and modern soybean genotypes |
| title_sort | exploring nitrogen limitation for historical and modern soybean genotypes |
| topic | Soja Genotipos Nitrógeno Fijación Biológica del Nitrógeno Soybeans Genotypes Nitrogen Biological Nitrogen Fixation |
| url | https://dl.sciencesocieties.org/publications/aj/abstracts/110/5/2080 http://hdl.handle.net/20.500.12123/5461 https://doi.org/10.2134/agronj2018.04.0271 |
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