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| Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
26/02/2021 |
Actualizado : |
10/08/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
BAETHGEN, W.E.; PARTON, W.P-; RUBIO, V.; KELLY, R.H.; LUTZ, S. |
Afiliación : |
WALTER E. BAETHGEN, International Research Institute for Climate and Society, The Earth Institute, Columbia University, New York, USA.; WILLIAM J. PARTON, Natural Resource Ecology Lab, Colorado State University, Fort Collins, Colorado, USA.; VALENTINA RUBIO DELLEPIANE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ROBIN H. KELLY, Natural Resource Ecology Lab, Colorado State University, Fort Collins, Colorado, USA.; SUSAN LUTZ, Natural Resource Ecology Lab, Colorado State University, Fort Collins, Colorado, USA. |
Título : |
Ecosystem dynamics of crop-pasture rotations in a fifty-year field experiment in Southern South America: Century model and field results. |
Fecha de publicación : |
2021 |
Fuente / Imprenta : |
Soil Science Society of America Journal, Volume 85, Issue 2, Pages 423-437, March/April 2021. DOI: https://doi.org/10.1002/saj2.20204 |
DOI : |
doi.org/10.1002/saj2.20204 |
Idioma : |
Inglés |
Notas : |
Article History: Accepted manuscript online: 26 November 2020; Manuscript accepted: 18 November 2020; Manuscript revised: 02 November 2020 ; Manuscript received: 12 February 2020; Published online: 24 March 2021. |
Contenido : |
Abstract:
The Century model was used to simulate soil carbon (C) and nitrogen (N) cycling, and crop production dynamics in an ongoing field experiment in Uruguay (started in 1963). The model was calibrated using observed data from three treatments (crop or crop?pasture rotations) and validated with a fourth treatment. The model correctly predicted the impact of different treatments on microbial biomass, N mineralization, soil respiration, and crop yields. The model and observed data show that soil respiration, N mineralization, soil C, and crop yields increase with increasing plant derived C inputs caused by increasing the frequency of pastures in the rotations. This is one of the first papers which show the strong positive correlation of observed soil C with plant C soil inputs to field?observed microbial biomass, soil respiration, and N mineralization. The results also showed that reducing tillage and transitioning to a no?till system increased soil C and reduced soil erosion. The main path of soil C losses was heterotrophic microbial respiration which accounted for 66% of the total C lost in a continuous crop rotation and no fertilizers, 71% in a continuous crop rotation with fertilizers, and 86% in a crop?pasture rotation with fertilizers. Model results from a degraded cropping system showed that adding grass/clover pastures greatly increased plant production and soil C, while reducing the frequency of grass/clover pastures in high?fertility cropping systems from 50% of the time to 25% reduces crop yields and soil C. Including cover crops substantially increases crop production and maintains soil C in high fertility and degraded cropping systems MenosAbstract:
The Century model was used to simulate soil carbon (C) and nitrogen (N) cycling, and crop production dynamics in an ongoing field experiment in Uruguay (started in 1963). The model was calibrated using observed data from three treatments (crop or crop?pasture rotations) and validated with a fourth treatment. The model correctly predicted the impact of different treatments on microbial biomass, N mineralization, soil respiration, and crop yields. The model and observed data show that soil respiration, N mineralization, soil C, and crop yields increase with increasing plant derived C inputs caused by increasing the frequency of pastures in the rotations. This is one of the first papers which show the strong positive correlation of observed soil C with plant C soil inputs to field?observed microbial biomass, soil respiration, and N mineralization. The results also showed that reducing tillage and transitioning to a no?till system increased soil C and reduced soil erosion. The main path of soil C losses was heterotrophic microbial respiration which accounted for 66% of the total C lost in a continuous crop rotation and no fertilizers, 71% in a continuous crop rotation with fertilizers, and 86% in a crop?pasture rotation with fertilizers. Model results from a degraded cropping system showed that adding grass/clover pastures greatly increased plant production and soil C, while reducing the frequency of grass/clover pastures in high?fertility cropping systems from 50% of ... Presentar Todo |
Palabras claves : |
CROP PASTURE ROTATION; CROPPING SYSTEMS; GRASS-CLOVER PASTURES; HIGH FERTILITY. |
Thesagro : |
CICLO DEL CARBONO; CICLO DEL NITROGENO; ECOSISTEMAS; SUELOS. |
Asunto categoría : |
-- |
Marc : |
LEADER 02844naa a2200289 a 4500 001 1061775 005 2021-08-10 008 2021 bl uuuu u00u1 u #d 024 7 $adoi.org/10.1002/saj2.20204$2DOI 100 1 $aBAETHGEN, W.E. 245 $aEcosystem dynamics of crop-pasture rotations in a fifty-year field experiment in Southern South America$bCentury model and field results.$h[electronic resource] 260 $c2021 500 $aArticle History: Accepted manuscript online: 26 November 2020; Manuscript accepted: 18 November 2020; Manuscript revised: 02 November 2020 ; Manuscript received: 12 February 2020; Published online: 24 March 2021. 520 $aAbstract: The Century model was used to simulate soil carbon (C) and nitrogen (N) cycling, and crop production dynamics in an ongoing field experiment in Uruguay (started in 1963). The model was calibrated using observed data from three treatments (crop or crop?pasture rotations) and validated with a fourth treatment. The model correctly predicted the impact of different treatments on microbial biomass, N mineralization, soil respiration, and crop yields. The model and observed data show that soil respiration, N mineralization, soil C, and crop yields increase with increasing plant derived C inputs caused by increasing the frequency of pastures in the rotations. This is one of the first papers which show the strong positive correlation of observed soil C with plant C soil inputs to field?observed microbial biomass, soil respiration, and N mineralization. The results also showed that reducing tillage and transitioning to a no?till system increased soil C and reduced soil erosion. The main path of soil C losses was heterotrophic microbial respiration which accounted for 66% of the total C lost in a continuous crop rotation and no fertilizers, 71% in a continuous crop rotation with fertilizers, and 86% in a crop?pasture rotation with fertilizers. Model results from a degraded cropping system showed that adding grass/clover pastures greatly increased plant production and soil C, while reducing the frequency of grass/clover pastures in high?fertility cropping systems from 50% of the time to 25% reduces crop yields and soil C. Including cover crops substantially increases crop production and maintains soil C in high fertility and degraded cropping systems 650 $aCICLO DEL CARBONO 650 $aCICLO DEL NITROGENO 650 $aECOSISTEMAS 650 $aSUELOS 653 $aCROP PASTURE ROTATION 653 $aCROPPING SYSTEMS 653 $aGRASS-CLOVER PASTURES 653 $aHIGH FERTILITY 700 1 $aPARTON, W.P- 700 1 $aRUBIO, V. 700 1 $aKELLY, R.H. 700 1 $aLUTZ, S. 773 $tSoil Science Society of America Journal, Volume 85, Issue 2, Pages 423-437, March/April 2021. DOI: https://doi.org/10.1002/saj2.20204
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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
23/09/2019 |
Actualizado : |
23/09/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
B - 1 |
Autor : |
LORENZO, D.; PAZ, D.; DAVIES, P.; VILLAMIL, J.; VILA, R.; CAÑIGUERAL, S.; DELLACASSA, E. |
Afiliación : |
DANIEL LORENZO, Universidad de la República (UdelaR)/ Facultad de Química; DANIEL PAZ, Universidad de la República (UdelaR)/ Facultad de Química; PHILIP DAVIES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSE MILTON VILLAMIL LUCAS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ROSER VILA, Universitat de Barcelona / Facultat de Farmàcia. Spain.; SALVADOR CAÑIGUERAL, Universitat de Barcelona / Facultat de Farmàcia. Spain.; EDUARDO DELLACASSA, Universidad de la República (UdelaR)/ Facultad de Química. |
Título : |
Characterization and enantiomeric distribution of some terpenes in the essential oil of a Uruguayan biotype of Salvia sclarea L. |
Fecha de publicación : |
2014 |
Fuente / Imprenta : |
Flavour and Fragrance Journal, July 2014, Volume 19, Issue 4, Pages 303-307. |
ISSN : |
0882-5734 |
DOI : |
10.1002/ffj.1282 |
Idioma : |
Inglés |
Notas : |
Article history: Received 15 September 2002 / Revised 30 January 2003 / Accepted 2 February 2003. |
Contenido : |
Abstract.
A biotype of clary sage (Salvia sclarea L.) growing in Uruguay was evaluated for its suitability to be cultivated in Uruguay. Essential oils from the inflorescences and leaves of plant harvested at full flowering and early seed ripeness stages were obtained by steam distillation and characterized by GC and GC-MS (quadrupole). Twenty-seven components (91-98% of the total composition) were identified. The oil was characterized by a high content of linalool (8-22%), linalyl acetate (39-48%) and sesquiterpenes, with germacrene D (8-20%) and (E)-β-caryophyllene (3-5%) as the main components. The enantiomeric distribution of α-pinene, sabinene, β-pinene, limonene, linalool, linalyl acetate and germacrene D was studied by multidimensional HRGC-HRGC. The development stage did not influence the oil composition or the enantiomeric distribution of the studied components of the clary sage biotype over the period of evaluation. It is concluded that clary sage can be grown as an economically viable crop in the south of Uruguay.
© 2004 John Wiley & Sons, Ltd. |
Palabras claves : |
Biotype; Chiral analysis; Clary sage; Essential oil; Lamiaceae; Salvia sclarea L. |
Asunto categoría : |
F01 Cultivo |
Marc : |
LEADER 02055naa a2200301 a 4500 001 1060211 005 2019-09-23 008 2014 bl uuuu u00u1 u #d 022 $a0882-5734 024 7 $a10.1002/ffj.1282$2DOI 100 1 $aLORENZO, D. 245 $aCharacterization and enantiomeric distribution of some terpenes in the essential oil of a Uruguayan biotype of Salvia sclarea L.$h[electronic resource] 260 $c2014 500 $aArticle history: Received 15 September 2002 / Revised 30 January 2003 / Accepted 2 February 2003. 520 $aAbstract. A biotype of clary sage (Salvia sclarea L.) growing in Uruguay was evaluated for its suitability to be cultivated in Uruguay. Essential oils from the inflorescences and leaves of plant harvested at full flowering and early seed ripeness stages were obtained by steam distillation and characterized by GC and GC-MS (quadrupole). Twenty-seven components (91-98% of the total composition) were identified. The oil was characterized by a high content of linalool (8-22%), linalyl acetate (39-48%) and sesquiterpenes, with germacrene D (8-20%) and (E)-β-caryophyllene (3-5%) as the main components. The enantiomeric distribution of α-pinene, sabinene, β-pinene, limonene, linalool, linalyl acetate and germacrene D was studied by multidimensional HRGC-HRGC. The development stage did not influence the oil composition or the enantiomeric distribution of the studied components of the clary sage biotype over the period of evaluation. It is concluded that clary sage can be grown as an economically viable crop in the south of Uruguay. © 2004 John Wiley & Sons, Ltd. 653 $aBiotype 653 $aChiral analysis 653 $aClary sage 653 $aEssential oil 653 $aLamiaceae 653 $aSalvia sclarea L 700 1 $aPAZ, D. 700 1 $aDAVIES, P. 700 1 $aVILLAMIL, J. 700 1 $aVILA, R. 700 1 $aCAÑIGUERAL, S. 700 1 $aDELLACASSA, E. 773 $tFlavour and Fragrance Journal, July 2014, Volume 19, Issue 4, Pages 303-307.
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