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Marta Andrea Alfaro Valenzuela

Senior Scientist

AgResearch Ltd

Hamilton, Nueva Zelanda

Cambio climático con énfasis en la cuantificación de las emisiones de Gases de Efecto Invernadero desde suelos agropecuarios, Impacto ambiental de la actividad agropecuaria y Buenas Prácticas Agrícolas asociadas

Agronomía, Universidad de La Frontera. Chile, 1995
Ingeniero Agrónomo, Universidad de La Frontera. Chile, 1995
Fertilidad de Suelos, The University of Reading. Reino Unido, 2002

Profesor Invitado Part Time

Universidad de La Frontera

Temuco, Chile

2002 - 2022
Profesor invitado Other

Universidad de Los Lagos

Programa de Magister en Recursos Naturales

Osorno, Chile

2005 - 2022

Investigador Full Time

Instituto de Investigación Agropecuaria (INIA- CRI Remehue)

Osorno, Chile

1996 - 1999
Investigador Full Time

Instituto de Investigaciones Agropecuarias (INIA - CRI Remehue)

Osorno, Chile

2002 - 2022
Investigador a honorarios Full Time

Universidad de la Frontera

Temuco, Chile

2023 - 2023
Senior Scientist Full Time

AGRESEARCH LTD

HAMILTON, Nueva Zelanda

2023 - A la fecha

Denisse Endress, MSc, Univ de Los Lagos, Junio 2006. Profesor patrocinante.

Jeannette Jaramillo, Ing, Agrónomo, UACh, Junio 2006. Profesor copatrocinante.

Fernando Frez, Ing, Agrónomo, UACh, Marzo 2007. Profesor patrocinante.

Christian Cayul, Ing, Agrónomo, UACh, Diciembre 2006. Profesor patrocinante.

Enzo Guarda, Téc. Ejec. Agrícola, Inst. Agrario A. Matthei. Octubre 2007. Profesor patrocinante.

Cristian Ibarra, Ing, Agrónomo, UACh, Diciembre 2008. Profesor copatrocinante.

Luis Ramírez, Ing. Ejec. Agronomía, Inst. Agrario A. Matthei. Mayo 2009. Profesor patrocinante.

Ricardo Lefenda, Ing, Agrónomo, U Católica de Temuco, Junio 2009. Profesor patrocinante.

Marianela Muñoz, MSc, Univ de Los Lagos, Mayo 2011. Profesor patrocinante

Evelyn Lazo, MSc, Univ de Los Lagos, Mayo 2011. Profesor patrocinante.

Pierre Loony, MSc, Univ de Los Lagos, Mayo 2012. Profesor patrocinante.

Nicole Céspedes, Bioquímico, U. Austral de Chile, Junio 2013. Profesor copatrocinante. Andrés Nagüil, Ing, Agrónomo, U Católica de Temuco, Defensa 09 Mayo 2014. Profesor patrocinante.

Soledad Mora, Médico Veterinario, Abril 2015, Universidad Iberoamericana de Ciencias y Tecnología. Profesor patrocinante.

Javier Nicul, Ingeniero Agrónomo, Noviembre 2015, Universidad de Tarapacá. Profesor copatrocinante.

Carol Ricciardi, Doctorado en Ciencias, Universidad Austral de Chile, en ejecución, Profesor copatrocinante.

Award from the Fondo de Desarrollo Científico y Tecnológico (FONTAGRO) for oustanding scientific achievement

FONTAGRO

Estados Unidos, 2018

Award for oustanding scientific achievement
Guardianes de la Mesa

INIA

Chile, 2017

Award from from INIA and Ministry of Agriculture due to oustanding contributions in Climate Change.
Award to Leading Women in Agriculture

APROLECHE

Chile, 2014

Award from the Dairy Producers Association (APROLECHE)
Award to Owstanding Women in Agriculture

Ministerio de Agricultura

Chile, 2012

Award to Owstanding Women in Agriculture. Award from the Chilean President through the Ministry of Agriculture.
Premio de la Sociedad Chilena de Producción Animal (SOCHIPA)

SOCHIPA (AG)

Chile, 2012

Award from the Sociedad Chilena de Producción Animal (SOCHIPA) 2012, to the best paper submitted to the Grassland section at the XXXVII Annual Meeting. 24-26th of October, Catillo, Chile.
Premio de la Sociedad Chilena de Producción Animal (SOCHIPA)

SOCHIPA

Chile, 2006

Award from the Sociedad Chilena de Producción Animal (SOCHIPA) 2006, to the best paper submitted to the Grassland section at the XXXI Annual Meeting. 18-20th of October, Chillán, Chile.
Beca Presidente de la República

Beca Presidente de la República

Chile, 1998

Presidente de la Republica Scholarship, for Postgraduate studies abroad.
Award from the Sociedad Chilena de Producción Animal

SOCIEDAD CHILENA DE PRODUCCION ANIMAL

Chile, 2021

Award from the Sociedad Chilena de Producción Animal (SOCHIPA) 2021, to the best paper submitted to the Grassland section at the Annual Meeting, Chile.
Award from the Sociedad Chilena de Producci'on Animal

SOCIEDAD CHILENA DE PRODUCCION ANIMAL

Chile, 2022

Award to best scientific paper in the Grassland section


Dynamics of Nitrogen Gaseous Losses Following the Application of Foliar Nanoformulations to Grasslands Salazar, Francisco; Ramirez, Luis; Alfaro, Marta Article ISI JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION (2022)
Nitrogen Intake and Its Partition on Urine, Dung and Products of Dairy and Beef Cattle in Chile Cofre, Rocio; Salazar, Francisco; Alfaro, Marta Article ISI AGRONOMY (2022)
Soil Greenhouse Gas Emissions in Different Pastures Implemented as a Management Strategy for Climate Change Alfaro, Marta; Salazar, Francisco; Ramirez, Luis; Saggar, Surinder Article ISI AGRONOMY (2022)
DATAMAN: A global database of nitrous oxide and ammonia emission factors for excreta deposited by livestock and land-applied manure Alfaro, Marta A.; Salazar, Francisco Article ISI JOURNAL OF ENVIRONMENTAL QUALITY (2021)
Nanofertilizers: A Cutting-Edge Approach to Increase Nitrogen Use Efficiency in Grasslands Mejias, J. H.; Perez Amaro, L. Article ISI FRONTIERS IN ENVIRONMENTAL SCIENCE (2021)
Global Research Alliance N2O chamber methodology guidelines: Statistical considerations, emission factor calculation, and data reporting de Klein, Cecile A. M.; Alfaro, Marta A.; Giltrap, Donna; Topp, Cairistiona F. E.; Simon, Priscila L.; Noble, Alasdair D. L.; van der Weerden, Tony J. Article ISI JOURNAL OF ENVIRONMENTAL QUALITY (2020)
Fate of Mycobacterium avium subsp. paratuberculosis and changes in bacterial diversity populations in dairy slurry after chemical treatments Alfaro, M. A. Article ISI SCOPUS JOURNAL OF APPLIED MICROBIOLOGY (2019)
Direct nitrous oxide emissions in Mediterranean climate cropping systems: Emission factors based on a meta-analysis of available measurement data Cayuela M.L.; Sanz-Cobena A.; Adams, DC; Abalos D.; Barton L.; Ryals R.; Silver W.L.; Pappa V.A.; Billen G.; Bondeau A.; et al. Article ISI SCOPUS AGRICULTURE ECOSYSTEMS & ENVIRONMENT (2017)
Effect of nitrification and urease inhibitors on nitrous oxide and methane emissions from an oat crop in a volcanic ash soil Scheer C.; Brunk C.; Rowlings D.; Grace P. Article ISI SCOPUS AGRICULTURE ECOSYSTEMS & ENVIRONMENT (2017)
Nitrogen performance indicators for dairy production systems De Klein C.A.M.; Monaghan R.M.; Gourley C.J.P.; Mark Powell J. Article ISI SCOPUS SOIL RESEARCH (2017)
Ammonia emissions from livestock production in Chile: an inventory and uncertainty analysis Muoz E.; Navia, R; Zaror, C; Alfaro, M Article SCOPUS Journal of Soil Science and Plant Nutrition (2016)
Application of cattle slurry containing Mycobacterium avium subsp paratuberculosis (MAP) to grassland soil and its effect on the relationship between MAP and free-living amoeba Salgado, M; Alfaro, M; Salazar, F; Badilla X.; Troncoso, E; Zambrano, A; GonzÃ¡lez M; Mitchell, R. M.; Collins, M. T. Article ISI SCOPUS VETERINARY MICROBIOLOGY (2015)
Nitrogen mineralization in a silandic andosol fertilized with dairy slurry and urea Salazar, F; Alfaro, M; Rosas, M; Macías F. Article ISI SCOPUS Journal of Soil Science and Plant Nutrition (2015)
Ammonia emission from a permanent grassland on volcanic soil after the treatment with dairy slurry and urea Salazar, F., Martínez-Lagos, J., Alfaro, M., Misselbrook, T. Article ISI SCOPUS ATMOSPHERIC ENVIRONMENT (2014)
Intensification of grassland and forage use: driving forces and constraints Oenema, O., De Klein, C., Alfaro, M. Article ISI SCOPUS CROP & PASTURE SCIENCE (2014)
Reducing nitrous oxide emissions from the global food system Oenema, O; Ju, XT; de Klein, C; Alfaro, M; del Prado, A; Lesschen, JP; Zheng, XH; Velthof, G; Ma, L; Gao, B; et al. Article ISI SCOPUS CURRENT OPINION IN ENVIRONMENTAL SUSTAINABILITY (2014)
Ammonia volatilization following dairy slurry application to a permanent grassland on a volcanic soil Martinez-Lagos, J; Salazar, E; Alfaro, M; Misselbrook, T Article ISI SCOPUS Atmospheric Environment (2013)
Approaching environmental phosphorus limits on a volcanic soil of Southern Chile Mejías, JH; Alfaro, M; Harsh, J Article ISI SCOPUS Geoderma (2013)
Effect of Soil Slope on the Appearance of Mycobacterium avium subsp paratuberculosis in Water Running off Grassland Soil after Application of Contaminated Slurry Salgado, M; Alfaro, M; Salazar, F; Troncoso, E; Mitchell, RM; Ramírez, L; Naguil, A; Zamorano, P; Collins, MT Article ISI SCOPUS Applied and Environmental Microbiology (2013)
Evaluation of potential nirs to predict pastures nutritive value Lobos, i.; Gou, P; Hube, S; Saldaña, R; Alfaro, M Article ISI SCIELO SCOPUS Journal of Soil Science and Plant Nutrition (2013)
Evaluation of potential nits to predict pastures nutritive values Lobos, I., Gou, P., Hube, S., Saldaña, R., Alfaro, M. Article SOIL SCIENCE AND PLANT NUTRITION (2013)
Potential mineralization and nitrification in volcanic grassland soils in Chile Cardenas, LM; Hatch, DJ; Scholefield, D; Jhurreea, D; Clark, IM; Hirsch, PR; Salazar, F; Rao-Ravella, S; Alfaro, M Article ISI SCOPUS Soil Science and Plant Nutrition (2013)
Ammonia emissions from urea application to permanent pasture on a volcanic soil Salazar, F; Martinez-Lagos, J; Alfaro, M; Misselbrook, T Article ISI SCOPUS Atmospheric Environment (2012)
EFFECT OF NITROGEN INHIBITORS ON NITROUS OXIDE EMISSIONS AND PASTURE GROWTH AFTER AN AUTUMN APPLICATION IN VOLCANIC SOIL Vistoso E.; Alfaro, M; Saggar S.; Salazar, F Article ISI SCIELO CHILEAN JOURNAL OF AGRICULTURAL RESEARCH (2012)
Effect of nitrogen inhibitors on nitrous oxide emissions and pasture growth after an autumn application in volcanic soil [Efecto de inhibidores de nitrógeno en las emisiones de óxido nitroso y crecimiento de la pradera después de la aplicación otoñal en un suelo volcánico. una gama de] Vistoso E.; Alfaro, M Article SCOPUS Chilean Journal of Agricultural Research (2012)
Low nitrogen leaching losses following a high rate of dairy slurry and urea application to pasture on a volcanic soil in Southern Chile Salazar, F; Martinez-Lagos, J; Alfaro, M; Misselbrook, T Article ISI SCOPUS Agriculture, Ecosystems and Environment (2012)
Role of Molybdenum on Yield, Quality, and Photosynthetic Efficiency of White Clover as a Result of the Interaction with Liming and Different Phosphorus Rates in Andisols Vistoso E.M.; Alfaro, M Article ISI SCOPUS Communications in Soil Science and Plant Analysis (2012)
EFFECT OF THE STOCKING RATE AND LAND SLOPE ON NITROGEN LOSSES TO WATER ON A GRAZED PASTURE OF SOUTHERN CHILE Salazar, F; Alfaro, M; Ledgard, S; Iraira S.; Teuber, N; Ramírez, L Article ISI SCIELO SCOPUS Journal of Soil Science and Plant Nutrition (2011)
Effect of the stocking rate and land slope on nitrogen posse to water on a grazed pasture of Southern Chile Salazar, F., Alfaro, M., Ledgars, S., Iraira, S., Teuber, N., Ramírez, L. Article SOIL SCIENCE AND PLANT NUTRITION (2011)
Fate of Mycobacterium avium subsp paratuberculosis after Application of Contaminated Dairy Cattle Manure to Agricultural Soils Salgado, M; Collins, MT; Salazar, F; Kruze, J.; Bolske, G; Soderlund, R.; Juste R.; Sevilla, IA; Biet F.; Troncoso, F; et al. Article ISI SCOPUS Applied and Environmental Microbiology (2011)
High rates of nitrogen cycling in volcanic soils from Chilean grasslands Dixon, ER; Cardenas, L; Alfaro, M; Salazar, F; Hatch, DJ Article ISI SCOPUS Rapid Communications in Mass Spectrometry (2011)
Fate of Mycobacterium avium subsp. paratuberculosis after application of contaminated dairy cattle manure to agricultural soils Article APPLIED AND ENVIRONMENTAL MICROBIOLOGY (2010)
INVENTORY OF AMMONIA EMISSIONS FROM LIVESTOCK PRODUCTION IN LOS LAGOS AND LOS RIOS REGIONS, CHILE Martinez-Lagos, J; Salazar, F; Alfaro, M; Misselbrook, TH Article ISI SCIELO CHILEAN JOURNAL OF AGRICULTURAL RESEARCH (2010)
Inventory of ammonia emissions from livestock production in Los Lagos and Los Ríos Regions, Chile [Inventario de emisiones de amoníaco de la producción pecuaria de las Regiones de Los Lagos y de Los Ríos, Chile] MartÃnez-Lagos J.; Salazar, F; Alfaro, M Article SCOPUS Chilean Journal of Agricultural Research (2010)
NITROGEN LOSSES UNDER DIFFERENT CATTLE GRAZING FREQUENCIES AND INTENSITIES IN A VOLCANIC SOIL OF SOUTHERN CHILE Demanet, R.; Misselbrook, TH; Alfaro, M Article ISI SCIELO CHILEAN JOURNAL OF AGRICULTURAL RESEARCH (2010)
Nitrogen losses under different cattle grazing frequencies and intensities in a volcanic soil of southern Chile [Pérdidas de nitrógeno bajo diferentes frecuencias e intensidades de pastoreo en un suelo volcánico del sur de Chile] NÃºÃ±ez P.A.; Demanet, R.; Alfaro, M; de la Luz Mora M. Article SCOPUS Chilean Journal of Agricultural Research (2010)
NITROGEN SOIL BUDGETS IN CONTRASTING DAIRY GRAZING SYSTEMS OF SOUTHERN CHILE, A SHORT-TERM STUDY Nunez, RP; Demanet, R.; Alfaro, M; Mora, ML Article ISI SCIELO REVISTA DE LA CIENCIA DEL SUELO Y NUTRICION VEGETAL (2010)
NITROGEN SOIL BUDGETS IN CONTRASTING DAIRY GRAZING SYSTEMS OF SOUTHERN CHILE, A SHORTTERM STUDY Nunez, RP; Demanet, R.; Alfaro, M; Mora, ML Article ISI SCOPUS Revista de la Ciencia del Suelo y Nutricion Vegetal (2010)
NUTRIENTS BALANCES IN BEEF CATTLE PRODUCTION SYSTEMS AND THEIR IMPLICATIONS FOR THE ENVIRONMENT Alfaro, M; Salazar, FS; Oenema, O; Iraira S.; Teuber, N; Ramírez, L; Villarroel, D Article ISI REVISTA DE LA CIENCIA DEL SUELO Y NUTRICION VEGETAL (2009)
LIVESTOCK PRODUCTION AND DIFFUSE POLLUTION IN A VOLCANIC SOIL Alfaro, M; Salazar, F Article ISI SCIELO JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION (2008)
Nitrogen, Phosphorus and Potassium Losses in a Grazing System with Different Stocking Rates in a Volcanic Soil Alfaro, M; Salazar, F; Iraira S.; Teuber, N; Villarroel, D; Ramírez, L Article ISI SCIELO CHILEAN JOURNAL OF AGRICULTURAL RESEARCH (2008)
Effect of different rates of cage salmon sludge on potato crop and its residual effect on annual ryegrass Teuber, N; Salazar, F; Alfaro, M; Valdebenito A. Article ISI AGRICULTURA TECNICA (2007)
Efecto de Fuentes de Azufre Sobre el Rendimiento y Calidad de Trigo y Pradera en Dos Andisoles Alfaro, Marta; Bernier, René; Iraira, Sergio Article SCIELO AGRICULTURA TECNICA (2006)
Effect of sulphur source effect on yield and quality of wheat and pasture ion two andisols Efecto de fuentes de azufre sobre el rendimiento y calidad de trigo y pradera en dos andisoles Alfaro, M; Bernier R.; Iraira S. Article SCOPUS AGRICULTURA TECNICA (2006)
Ganadería y Contaminación Difusa, Implicancias para el Sur de Chile Alfaro, Marta; Salazar, Francisco Article SCIELO AGRICULTURA TECNICA (2005)
NITROGEN RUNOFF AND LEACHING LOSSES IN BEEF PRODUCTION SYSTEMS UNDER TWO DIFFERENT STOCKING RATES IN SOUTHERN CHILE Alfaro, Marta; Salaza, Francisco; Iraira, Sergio; Teuber, Nolberto; Ramirez, Luis Article SCIELO SCOPUS GAYANA BOTANICA (2005)


Pérdidas de nutrientes y efectos ambientales por uso de fertilizantes y enmiendas orgánicas BookSection (2022)
Emisiones de gases de efecto invernadero en el cultivo del arroz en Chile BookSection (2021)


El secuestro de carbono en los sistemas ganaderos, sus oportunidades y desafíos Monograph (2022)


DESARROLLO DE UN PLAN DE ACCIÓN PARA LA SUSTENTABILIDAD DE LA GANADERÍA BOVINA, HACIA LA CARBONO NEUTRALIDAD Proyecto (2021)
Beneficios del uso de leguminosas en praderas Proyecto (2019)
Bypassing soil N cycling to increase nitrogen use efficiency in pastures Proyecto (2018)
MEASUREMENT OF GREENHOUSE GAS EMISSIONS IN LIVESTOCK SYSTEMS: BUILDING CAPACITY IN LATIN AMERICA AND THE CARIBBEAN Proyecto (2015)


Climate and soil factors affecting ammonia emissions from urea and dairy slurry applications on andosols [Factores edafoclimáticos que afectan las emisiones de amoniaco por aplicación de urea y purín de lechería en andosoles] Salazar, F; Alfaro, M; Rosas, M; Rampoldi E.; Macías F. Review SCOPUS Chilean Journal of Agricultural and Animal Sciences (2014)