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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
25/10/2016 |
Actualizado : |
28/02/2020 |
Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
Autor : |
SCARLATO, M.; DOGLIOTTI, S.; BERRUETA, C.; BARROS, C.; REHERMAN, F.; BORGES, A.; GARCÍA, M.; GIMÉNEZ, G. |
Afiliación : |
MARIANA SCARLATO GARCIA, Universidad de la República (UdelaR)/ Facultad de Agronomía; SANTIAGO DOGLIOTTI, Universidad de la República (UdelaR)/ Facultad de Agronomía; MARIA CECILIA BERRUETA MOREIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS BARROS, Universidad de la República (UdelaR)/ Facultad de Agronomía; FACUNDO REHERMAN, Universidad de la República (UdelaR)/ Facultad de Agronomía; ALEJANDRA BORGES, Universidad de la República (UdelaR)/ Facultad de Agronomía; MARGARITA GARCIA, Universidad de la República (UdelaR)/ Facultad de Agronomía; GUSTAVO GIMÉNEZ FRANQUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Explaining yield variability between farmers as a first step to reduce gaps. |
Complemento del título : |
T3. Crop modeling and yield gap analysis for agricultural systems analysis and design. |
Fecha de publicación : |
2015 |
Fuente / Imprenta : |
In: Proceedings of the 5th international symposium for farming systems design. Multi-functional farming systems in a changing world. Montpellier (Francia): European Society of Agronomy, 2015. |
Páginas : |
p. 119-122 |
Idioma : |
Inglés |
Notas : |
Acknowledgements. Without the help of all the farmers that gently contributed their time and fields, and the help of the technical advisers and experts
to select a representative sample of farms, this research would have not be possible, so our sincere gratitude to all of them. This research was funded
by the National Institute of Agricultural Research (INIA), Project FPTA 288. |
Contenido : |
Reducing yield gaps is one of the major pathways identified to meet the future food demand (Keating et al., 2014). A prerequisite to design strategies to reduce the yield gap of crops is to understand its causes. The sustainability of most vegetable farms in south Uruguay is threatened by low family income and deteriorating soil quality. The main cause of low income is that most farms obtain 50% or less of the attainable crop yields in the region, with similar production resources and proper management (Dogliotti et al., 2014). Low yields are the main cause of low labour productivity and resource use efficiency. There is a huge variability between farmers in crop yields, product quality and economic results. To explain the main causes of this variability and to identify strategies to reduce the distance between the average yield and the top yielding fields and farms, we started a project to study important vegetable crops in south Uruguay (onion, tomato, sweet potato and strawberry). In this paper we present the method developed to explain variability in physical and economic results, the main causes identified in the seasons studied on strawberry and onion,
and discuss strategies to reduce the observed gaps. |
Palabras claves : |
ONION; STRAWBERRY. |
Thesagro : |
CEBOLLA; FRUTILLA. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/6241/1/Scarlato-M.-2015.-5th-Int.Symp.Farming-Systems-Montpellier.pdf
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Marc : |
LEADER 02440nam a2200265 a 4500 001 1055898 005 2020-02-28 008 2015 bl uuuu u01u1 u #d 100 1 $aSCARLATO, M. 245 $aExplaining yield variability between farmers as a first step to reduce gaps.$h[electronic resource] 260 $aIn: Proceedings of the 5th international symposium for farming systems design. Multi-functional farming systems in a changing world. Montpellier (Francia): European Society of Agronomy$c2015 300 $ap. 119-122 500 $aAcknowledgements. Without the help of all the farmers that gently contributed their time and fields, and the help of the technical advisers and experts to select a representative sample of farms, this research would have not be possible, so our sincere gratitude to all of them. This research was funded by the National Institute of Agricultural Research (INIA), Project FPTA 288. 520 $aReducing yield gaps is one of the major pathways identified to meet the future food demand (Keating et al., 2014). A prerequisite to design strategies to reduce the yield gap of crops is to understand its causes. The sustainability of most vegetable farms in south Uruguay is threatened by low family income and deteriorating soil quality. The main cause of low income is that most farms obtain 50% or less of the attainable crop yields in the region, with similar production resources and proper management (Dogliotti et al., 2014). Low yields are the main cause of low labour productivity and resource use efficiency. There is a huge variability between farmers in crop yields, product quality and economic results. To explain the main causes of this variability and to identify strategies to reduce the distance between the average yield and the top yielding fields and farms, we started a project to study important vegetable crops in south Uruguay (onion, tomato, sweet potato and strawberry). In this paper we present the method developed to explain variability in physical and economic results, the main causes identified in the seasons studied on strawberry and onion, and discuss strategies to reduce the observed gaps. 650 $aCEBOLLA 650 $aFRUTILLA 653 $aONION 653 $aSTRAWBERRY 700 1 $aDOGLIOTTI, S. 700 1 $aBERRUETA, C. 700 1 $aBARROS, C. 700 1 $aREHERMAN, F. 700 1 $aBORGES, A. 700 1 $aGARCÍA, M. 700 1 $aGIMÉNEZ, G.
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Registro original : |
INIA Las Brujas (LB) |
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha actual : |
04/12/2019 |
Actualizado : |
20/04/2020 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Nacionales |
Circulación / Nivel : |
Nacional - -- |
Autor : |
TABARES DA ROSA, S.; SIGNORELLI, S.; DEL PAPA, M.; SABATINI, O.; REYNO, R.; LATTANZI, F.; REBUFFO, M.; SANJUÁN, J.; MONZA, J. |
Afiliación : |
SOFÍA TABARES DA ROSA, Universidad de la República (UdelaR)/ Facultad de Agronomía; SANTIAGO SIGNORELLI PÓPPOLO, Universidad de la República (UdelaR)/ Facultad de Agronomía; M. DEL PAPA, Instituto de Biotecnología y Biología Molecular, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, Argentina; O. SABATINI, Universidad de la República (UdelaR)/ Facultad de Agronomía; RAFAEL ALEJANDRO REYNO PODESTA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FERNANDO A. LATTANZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MONICA IRENE REBUFFO GFELLER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JUAN SANJUÁN, Depto. de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, España; JORGE EDUARDO MONZA GALETTI, Universidad de la República (UdelaR)/ Facultad de Agronomía. |
Título : |
Rhizobia inoculants for alfalfa in acid soils: a proposal for Uruguay. [Inoculantes rizobianos para alfalfa en suelos ácidos. Una propuesta para Uruguay.] |
Fecha de publicación : |
2019 |
Fuente / Imprenta : |
Agrociencia Uruguay, 2019, 23(2):1-13. |
ISSN : |
e ISSN: 2301-1548 |
DOI : |
10.31285/AGRO.23.120 |
Idioma : |
Inglés |
Notas : |
Article history: Recibido: 28/08/19 - Aceptado: 13/09/19. |
Contenido : |
Summary: Ensifer meliloti establishes symbiosis with Medicago sativa (alfalfa) and other perennial species of Medicago that grow in soils with neutral to alkaline pH, whereas Ensifer medicae makes symbiosis with annual medics adapted to moderately acid soils. The new species Rhizobium favelukesii, whose strain is LPU83, belongs to an alfalfa group of inefficient rhizobia, known as the Oregon type, initially represented by Rhizobium sp. strain Or191. R. favelukesii is considered a potential risk in the acid soils where alfalfa is grown, and could explain the inefficient nodulation observed in different countries. In acidic soils from the «Dairy Basin» of Uruguay, producers inoculate alfalfa with E. melliloti U143 strain. This edaphic condition is often marginal because the maximum potential of rhizobia-alfalfa symbiosis is not achieved at acid pH. Although Uruguay has an outstanding position in the production and use of rhizobial inoculants, the commercial strains currently used in Trifolium, Lotus and alfalfa were selected about 50 years ago in different conditions that the present ones as a consequence of: i) the displacement of cultivated pastures to other sites, ii) the sowing method, and iii) the use of new cultivars. In this review, alfalfa inoculation is analyzed in some countries and a strategy for the development of an inoculant suitable for Uruguayan acid soils is proposed. This strategy is based on the selection of efficient and competitive strains, as the first selection criteria, and persistency in soil as the second one // Resumen: Ensifer meliloti establece simbiosis con Medicago sativa (alfalfa) y otras especies perennes de Medicago que crecen en suelos con pH neutro a alcalino, mientras que Ensifer medicae lo hace con especies anuales adaptadas a suelos
moderadamente ácidos. La nueva especie Rhizobium favelukesii, cuya cepa tipo es LPU83, pertenece a un grupo de rizobios ineficientes en alfalfa conocidos como tipo Oregon, representados inicialmente por Rhizobium sp. cepa Or191. R. favelukesii; se considera un riesgo potencial en suelos ácidos en los que se cultiva alfalfa, y podría explicar la nodulación ineficiente en diferentes países. En suelos ácidos de la «Cuenca lechera» de Uruguay los productores inoculan alfalfa con E. meliloti cepa U143. Esa condición edáfica a veces resulta marginal para la simbiosis rizobio-alfalfa porque a pH ácido no se logra su máximo potencial. Si bien Uruguay tiene una posición destacada en la producción y uso de inoculantes rizobianos, las cepas comerciales usadas actualmente en especies de Trifolium, Lotus y alfalfa se seleccionaron hace unos 50 años en condiciones diferentes a las actuales, consecuencia de: i) el desplazamiento de pasturas cultivadas a otros sitios, ii) el tipo de siembra y iii) el uso de nuevos cultivares. En esta revisión se analiza la inoculación de la alfalfa en algunos países y se propone una estrategia para el desarrollo de un inoculante apto para suelos ácidos en Uruguay. Esta estrategia se basa en la selección de cepas eficientes y competitivas como primer criterio y persistencia en suelos, como segundo. MenosSummary: Ensifer meliloti establishes symbiosis with Medicago sativa (alfalfa) and other perennial species of Medicago that grow in soils with neutral to alkaline pH, whereas Ensifer medicae makes symbiosis with annual medics adapted to moderately acid soils. The new species Rhizobium favelukesii, whose strain is LPU83, belongs to an alfalfa group of inefficient rhizobia, known as the Oregon type, initially represented by Rhizobium sp. strain Or191. R. favelukesii is considered a potential risk in the acid soils where alfalfa is grown, and could explain the inefficient nodulation observed in different countries. In acidic soils from the «Dairy Basin» of Uruguay, producers inoculate alfalfa with E. melliloti U143 strain. This edaphic condition is often marginal because the maximum potential of rhizobia-alfalfa symbiosis is not achieved at acid pH. Although Uruguay has an outstanding position in the production and use of rhizobial inoculants, the commercial strains currently used in Trifolium, Lotus and alfalfa were selected about 50 years ago in different conditions that the present ones as a consequence of: i) the displacement of cultivated pastures to other sites, ii) the sowing method, and iii) the use of new cultivars. In this review, alfalfa inoculation is analyzed in some countries and a strategy for the development of an inoculant suitable for Uruguayan acid soils is proposed. This strategy is based on the selection of efficient and competitive strains, as the first se... Presentar Todo |
Palabras claves : |
ALUMINIO DISPONIBLE; AVAILABLE ALUMINIUM; CEPAS OREGON; ENSIFER MELILOTI; OREGON STRAINS. |
Asunto categoría : |
A50 Investigación agraria |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/13874/1/Reyno-Agrocienia-2019.pdf
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Marc : |
LEADER 04146naa a2200313 a 4500 001 1060496 005 2020-04-20 008 2019 bl uuuu u00u1 u #d 022 $ae ISSN: 2301-1548 024 7 $a10.31285/AGRO.23.120$2DOI 100 1 $aTABARES DA ROSA, S. 245 $aRhizobia inoculants for alfalfa in acid soils$ba proposal for Uruguay. [Inoculantes rizobianos para alfalfa en suelos ácidos. Una propuesta para Uruguay.]$h[electronic resource] 260 $c2019 500 $aArticle history: Recibido: 28/08/19 - Aceptado: 13/09/19. 520 $aSummary: Ensifer meliloti establishes symbiosis with Medicago sativa (alfalfa) and other perennial species of Medicago that grow in soils with neutral to alkaline pH, whereas Ensifer medicae makes symbiosis with annual medics adapted to moderately acid soils. The new species Rhizobium favelukesii, whose strain is LPU83, belongs to an alfalfa group of inefficient rhizobia, known as the Oregon type, initially represented by Rhizobium sp. strain Or191. R. favelukesii is considered a potential risk in the acid soils where alfalfa is grown, and could explain the inefficient nodulation observed in different countries. In acidic soils from the «Dairy Basin» of Uruguay, producers inoculate alfalfa with E. melliloti U143 strain. This edaphic condition is often marginal because the maximum potential of rhizobia-alfalfa symbiosis is not achieved at acid pH. Although Uruguay has an outstanding position in the production and use of rhizobial inoculants, the commercial strains currently used in Trifolium, Lotus and alfalfa were selected about 50 years ago in different conditions that the present ones as a consequence of: i) the displacement of cultivated pastures to other sites, ii) the sowing method, and iii) the use of new cultivars. In this review, alfalfa inoculation is analyzed in some countries and a strategy for the development of an inoculant suitable for Uruguayan acid soils is proposed. This strategy is based on the selection of efficient and competitive strains, as the first selection criteria, and persistency in soil as the second one // Resumen: Ensifer meliloti establece simbiosis con Medicago sativa (alfalfa) y otras especies perennes de Medicago que crecen en suelos con pH neutro a alcalino, mientras que Ensifer medicae lo hace con especies anuales adaptadas a suelos moderadamente ácidos. La nueva especie Rhizobium favelukesii, cuya cepa tipo es LPU83, pertenece a un grupo de rizobios ineficientes en alfalfa conocidos como tipo Oregon, representados inicialmente por Rhizobium sp. cepa Or191. R. favelukesii; se considera un riesgo potencial en suelos ácidos en los que se cultiva alfalfa, y podría explicar la nodulación ineficiente en diferentes países. En suelos ácidos de la «Cuenca lechera» de Uruguay los productores inoculan alfalfa con E. meliloti cepa U143. Esa condición edáfica a veces resulta marginal para la simbiosis rizobio-alfalfa porque a pH ácido no se logra su máximo potencial. Si bien Uruguay tiene una posición destacada en la producción y uso de inoculantes rizobianos, las cepas comerciales usadas actualmente en especies de Trifolium, Lotus y alfalfa se seleccionaron hace unos 50 años en condiciones diferentes a las actuales, consecuencia de: i) el desplazamiento de pasturas cultivadas a otros sitios, ii) el tipo de siembra y iii) el uso de nuevos cultivares. En esta revisión se analiza la inoculación de la alfalfa en algunos países y se propone una estrategia para el desarrollo de un inoculante apto para suelos ácidos en Uruguay. Esta estrategia se basa en la selección de cepas eficientes y competitivas como primer criterio y persistencia en suelos, como segundo. 653 $aALUMINIO DISPONIBLE 653 $aAVAILABLE ALUMINIUM 653 $aCEPAS OREGON 653 $aENSIFER MELILOTI 653 $aOREGON STRAINS 700 1 $aSIGNORELLI, S. 700 1 $aDEL PAPA, M. 700 1 $aSABATINI, O. 700 1 $aREYNO, R. 700 1 $aLATTANZI, F. 700 1 $aREBUFFO, M. 700 1 $aSANJUÁN, J. 700 1 $aMONZA, J. 773 $tAgrociencia Uruguay, 2019, 23(2):1-13.
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