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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
09/04/2021 |
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Actualizado : |
15/06/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
PINTO, P.; RUBIO, G.; GUTIERREZ, F.; SAWCHIK, J.; ARANA, S.; PIÑEIRO, G. |
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Afiliación : |
PRISCILA PINTO, Laboratorio de Análisis Regional y Teledetección (LART), IFEVA, Universidad de Buenos Aires, CONICET, Facultad de Agronomía, Buenos Aires, Argentina; GERARDO RUBIO, Soil Fertility and Fertilizers and INBA (CONICET- UBA), Buenos Aires, Argentina; FELIX ALBERTO GUTIERREZ ZAMIT, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JORGE SAWCHIK PINTOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SANTIAGO ARANA, Montevideo, Uruguay; GERVASIO PIÑEIRO, Departamento de Sistemas Ambientales, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay. |
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Título : |
Variable root:shoot ratios and plant nitrogen concentrations discourage using just aboveground biomass to select legume service crops. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Plant and Soil, 2021, volume 463, pages 347-358. doi: https://doi.org/10.1007/s11104-021-04916-x |
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ISSN : |
0032-079X |
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DOI : |
10.1007/s11104-021-04916-x |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 30 July 2020; Accepted 8 March 2021; Published online 22 March 2021; Issue Date June 2021.
Responsible Editor: Euan K James.
This work was supported by INIA (N-5271 and N-5373) and CONICET (PIP-0555). |
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Contenido : |
ABSTRACT.
Aims: Comparing different winter legume species by plant traits that determine their contributions to ecosystems as service crops. Since root biomass determines soil organic matter formation and biological nitrogen fixation (BNF) increases soil organic nitrogen stock, those plant traits are more suitable than shoot biomass to select service crops. Methods: We evaluated shoot and root biomass and BNF (using 15N natural abundance method) of 10 winter legume service crop species under field conditions, in two consecutive years. Results: The legumes significantly varied in shoot (3.4 to 9.1 Mg ha?1 year?1) and root biomass (0.8 to 1.3 Mg ha?1 year?1) and in the proportion and the amount of biologically fixed nitrogen (36?61% and 43?121 kg of N ha?1, respectively). Whereas shoot biomass varied between years, root and BNF were rather constant determining a low correlation between the variables. Among the evaluated species, Trifolium pratense and T. alexandrinum were the top-ranked species for the evaluated conditions, showing the largest amount of root biomass (~ 1.3 Mg ha?1 year?1) and BNF (~ 112 kg of N ha?1 year?1). Conclusions: Selecting service crops species aimed to increase soil organic matter based only on shoot biomass may be insufficient. As a consequence, we highlight the importance of performing breeding programs aimed to increase, in addition to crop yield or shoot biomass production, other plant traits such as root biomass or biological nitrogen fixation that provide key regulating and supporting ecosystem services.
© 2021, The Author(s), under exclusive licence to Springer Nature Switzerland AG. MenosABSTRACT.
Aims: Comparing different winter legume species by plant traits that determine their contributions to ecosystems as service crops. Since root biomass determines soil organic matter formation and biological nitrogen fixation (BNF) increases soil organic nitrogen stock, those plant traits are more suitable than shoot biomass to select service crops. Methods: We evaluated shoot and root biomass and BNF (using 15N natural abundance method) of 10 winter legume service crop species under field conditions, in two consecutive years. Results: The legumes significantly varied in shoot (3.4 to 9.1 Mg ha?1 year?1) and root biomass (0.8 to 1.3 Mg ha?1 year?1) and in the proportion and the amount of biologically fixed nitrogen (36?61% and 43?121 kg of N ha?1, respectively). Whereas shoot biomass varied between years, root and BNF were rather constant determining a low correlation between the variables. Among the evaluated species, Trifolium pratense and T. alexandrinum were the top-ranked species for the evaluated conditions, showing the largest amount of root biomass (~ 1.3 Mg ha?1 year?1) and BNF (~ 112 kg of N ha?1 year?1). Conclusions: Selecting service crops species aimed to increase soil organic matter based only on shoot biomass may be insufficient. As a consequence, we highlight the importance of performing breeding programs aimed to increase, in addition to crop yield or shoot biomass production, other plant traits such as root biomass or biological nitrogen fixation th... Presentar Todo |
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Palabras claves : |
Agroecology; Belowground biomass; Biological nitrogen fixation; Cover crops. |
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Thesagro : |
AGROECOLOGÍA. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 02740naa a2200277 a 4500
001 1061966
005 2022-06-15
008 2021 bl uuuu u00u1 u #d
022 $a0032-079X
024 7 $a10.1007/s11104-021-04916-x$2DOI
100 1 $aPINTO, P.
245 $aVariable root$bshoot ratios and plant nitrogen concentrations discourage using just aboveground biomass to select legume service crops.$h[electronic resource]
260 $c2021
500 $aArticle history: Received 30 July 2020; Accepted 8 March 2021; Published online 22 March 2021; Issue Date June 2021. Responsible Editor: Euan K James. This work was supported by INIA (N-5271 and N-5373) and CONICET (PIP-0555).
520 $aABSTRACT. Aims: Comparing different winter legume species by plant traits that determine their contributions to ecosystems as service crops. Since root biomass determines soil organic matter formation and biological nitrogen fixation (BNF) increases soil organic nitrogen stock, those plant traits are more suitable than shoot biomass to select service crops. Methods: We evaluated shoot and root biomass and BNF (using 15N natural abundance method) of 10 winter legume service crop species under field conditions, in two consecutive years. Results: The legumes significantly varied in shoot (3.4 to 9.1 Mg ha?1 year?1) and root biomass (0.8 to 1.3 Mg ha?1 year?1) and in the proportion and the amount of biologically fixed nitrogen (36?61% and 43?121 kg of N ha?1, respectively). Whereas shoot biomass varied between years, root and BNF were rather constant determining a low correlation between the variables. Among the evaluated species, Trifolium pratense and T. alexandrinum were the top-ranked species for the evaluated conditions, showing the largest amount of root biomass (~ 1.3 Mg ha?1 year?1) and BNF (~ 112 kg of N ha?1 year?1). Conclusions: Selecting service crops species aimed to increase soil organic matter based only on shoot biomass may be insufficient. As a consequence, we highlight the importance of performing breeding programs aimed to increase, in addition to crop yield or shoot biomass production, other plant traits such as root biomass or biological nitrogen fixation that provide key regulating and supporting ecosystem services. © 2021, The Author(s), under exclusive licence to Springer Nature Switzerland AG.
650 $aAGROECOLOGÍA
653 $aAgroecology
653 $aBelowground biomass
653 $aBiological nitrogen fixation
653 $aCover crops
700 1 $aRUBIO, G.
700 1 $aGUTIERREZ, F.
700 1 $aSAWCHIK, J.
700 1 $aARANA, S.
700 1 $aPIÑEIRO, G.
773 $tPlant and Soil, 2021, volume 463, pages 347-358. doi: https://doi.org/10.1007/s11104-021-04916-x
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
07/03/2022 |
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Actualizado : |
30/11/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
VASEN, F.; SIERRA, M. |
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Afiliación : |
FEDERICO VASEN, Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina; MIGUEL OSCAR SIERRA PEREIRO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
"The Hardest Task"-peer review and the evaluation of technological activities. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Minerva, 2022, Volume 60, Issue 3, pages 375-395. doi: https://doi.org/10.1007/s11024-022-09461-0 |
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ISSN : |
0026-4695 (print); 1573-1871 (electronic) |
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DOI : |
10.1007/s11024-022-09461-0 |
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Idioma : |
Inglés |
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Notas : |
Article history: Accepted 24 January 2022; Published 07 March 2022; To be published September 2022. -- Corresponding author: Federico Vasen, fvasen@uba.ar ---
This work was supported by Instituto Nacional de Tecnología Agropecuaria and Agencia Nacional de Promoción Científica y Tecnológica [grant PICT2018-2794]. |
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Contenido : |
ABSTRACT.- Technology development and innovation are fundamentally different from scientific research. However, in many circumstances, they are evaluated jointly and by the same processes. In these cases, peer review -the most usual procedure for evaluating research - is also applied to the evaluation of technological products and innovation activities. This can lead to unfair results and end up discouraging the involvement of researchers in these fields. This paper analyzes the evaluation processes in Uruguay's National System of Researchers. In this system, all members' activities, both scientific and technological, are evaluated by peer committees. Based on documentary analysis and semi-structured interviews, the difficulties faced by evaluators in assessing technology products are explored. The article highlights the persistence of a linear conception of the link between science and technology and describes the obstacles to assimilate the particularities of technological activities. Refereed publications are presented as the only uncontested product. Other types of output are reviewed with suspicion. This study emphasizes the need for specific mechanisms to evaluate technological production within academic careers.
© The Author(s), under exclusive licence to Springer Nature B.V. 2022 |
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Palabras claves : |
Latin America; National system of researchers; Peer review; Research evaluation; Technological outputs; Uruguay. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 02398naa a2200241 a 4500
001 1062792
005 2022-11-30
008 2022 bl uuuu u00u1 u #d
022 $a0026-4695 (print); 1573-1871 (electronic)
024 7 $a10.1007/s11024-022-09461-0$2DOI
100 1 $aVASEN, F.
245 $a"The Hardest Task"-peer review and the evaluation of technological activities.$h[electronic resource]
260 $c2022
500 $aArticle history: Accepted 24 January 2022; Published 07 March 2022; To be published September 2022. -- Corresponding author: Federico Vasen, fvasen@uba.ar --- This work was supported by Instituto Nacional de Tecnología Agropecuaria and Agencia Nacional de Promoción Científica y Tecnológica [grant PICT2018-2794].
520 $aABSTRACT.- Technology development and innovation are fundamentally different from scientific research. However, in many circumstances, they are evaluated jointly and by the same processes. In these cases, peer review -the most usual procedure for evaluating research - is also applied to the evaluation of technological products and innovation activities. This can lead to unfair results and end up discouraging the involvement of researchers in these fields. This paper analyzes the evaluation processes in Uruguay's National System of Researchers. In this system, all members' activities, both scientific and technological, are evaluated by peer committees. Based on documentary analysis and semi-structured interviews, the difficulties faced by evaluators in assessing technology products are explored. The article highlights the persistence of a linear conception of the link between science and technology and describes the obstacles to assimilate the particularities of technological activities. Refereed publications are presented as the only uncontested product. Other types of output are reviewed with suspicion. This study emphasizes the need for specific mechanisms to evaluate technological production within academic careers. © The Author(s), under exclusive licence to Springer Nature B.V. 2022
653 $aLatin America
653 $aNational system of researchers
653 $aPeer review
653 $aResearch evaluation
653 $aTechnological outputs
653 $aUruguay
700 1 $aSIERRA, M.
773 $tMinerva, 2022, Volume 60, Issue 3, pages 375-395. doi: https://doi.org/10.1007/s11024-022-09461-0
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