Temas 

Temas

Mostrando ítems 1-15 de 15

    • A multi-resolution approach to national-scale cultivated area estimation of soybean 

      King, LeeAnn; Adusei, Bernard; Stehman, Stephen V.; Potapov, Peter V.; Xiao-Peng, Song; Krylov, Alexander; Di Bella, Carlos Marcelo; Loveland, Thomas R.; Johnson, David M.; Hansen, Matthew C. (2017-06)
      Satellite remote sensing data can provide timely, accurate, and objective information on cultivated area by crop type and, in turn, facilitate accurate estimates of crop production. Here, we present a generic multi-resolution ...

    • Agrohydrological analysis of groundwater recharge and land use changes in the Pampas of Argentina 

      Kroes, Joop; van Dam, Jos; Supit, Iwan; De Abelleyra, Diego; Veron, Santiago Ramón; de Wit, Allard; Boogaard, Hendrik; Angelini, Marcos Esteban; Damiano, Francisco; Groenendijk, Piet; Wesseling, Jan; Veldhuizen, Ab (Elsevier, 2019-03)
      This paper studies the changes of groundwater, climate and land use in the Pampas of Argentina. These changes offer opportunities and threats. Lowering groundwater without irrigation causes drought and successive crop and ...

    • Attribution of carbon dioxide fluxes to crop types in a heterogeneous agricultural landscape of Argentina 

      Posse Beaulieu, Gabriela; Richter, Klaus; Lewczuk, Nuria Andrea; Cristiano, Piedad Maria; Gattinoni, Natalia Noemí; Rebella, Cesar Manuel; Achkar, Antonio (Springer, 2014-10)
      The increasing proportion of agricultural lands worldwide makes it necessary to intensify the research concerning the carbon exchange at agricultural sites. In order to determine the Net Ecosystem Exchange (NEE) in an ...

    • Caracterización de rotaciones de cultivos y su impacto en el rendimiento y funcionamiento de sistemas agrícolas 

      De Abelleyra, Diego (Facultad de Agronomía, Universidad de Buenos Aires, 2023-04-27)
      El análisis de las rotaciones de cultivos a escala regional requiere información histórica a nivel de lote que considere las diferentes condiciones presentes en el área. Esta información ha sido de escasa y dispersa en ...

    • Carbon dioxide fluxes on a soybean field in Argentina: influence of crop growth stages 

      Posse Beaulieu, Gabriela; Richter, Klaus; Corin, Jorgelina Mariana; Lewczuk, Nuria Andrea; Achkar, Antonio; Rebella, Cesar Manuel (Bentham Open, 2010)
      CO2 fluxes were measured in a soybean field in the Province of Buenos Aires, Argentina, with an eddy covariance system consisting of a CO2/H2O infrared gas analyzer and a sonic anemometer. The measurements were carried out ...

    • CO2 and N2O flux balance on soybean fields during growth and fallow periods in the Argentine Pampas—A study case 

      Lewczuk, Nuria Andrea; Posse Beaulieu, Gabriela; Richter, Klaus; Achkar, Antonio (Elsevier, 2017-06)
      The estimation of the GHG balance of agroecosystems is essential to evaluate the impact of agriculture on the composition of the atmosphere. Cultivated soils may act as a sink or a source of CO2 and usually emit N2O. The ...

    • Cover crop species affect N2O emissions at hotspot moments of summer crops 

      Vangeli, Sebastián; Restovich, Silvina Beatriz; Posse Beaulieu, Gabriela (Frontiers Media, 2022-06-01)
      The use of cover crops, combined with low N fertilization and no-tillage, reduces theenvironmental impacts of agriculture. Legume cover crops provide N to the agroecosystem and allow N fertilization to be reduced without ...

    • Cómo afectan distintos cultivos de cobertura las emisión de óxido nitroso del cultivo siguiente? 

      Vangeli, Sebastián; Restovich, Silvina Beatriz; Azich, Pablo; Adrover, Carol; Villalba, Fabio Leonardo; Colombini, Diego Alberto; Posse Beaulieu, Gabriela (Asociación Argentina de la Ciencia del Suelo, 2020-10)
      La incorporación de cultivos de cobertura (CC) en las rotaciones agrícolas ha sido propuesta como una posible práctica de mitigación del cambio climático. Sin embargo, algunos trabajos muestran que la emisión de óxido ...

    • Crop rotations in the Rolling Pampas: characterization, spatial pattern and its potential controls 

      De Abelleyra, Diego; Veron, Santiago Ramón (Elsevier, 2020-04-30)
      One of the most important decisions made by farmers every year involves land allocation to different crops. Accurate information on crop sequences over large areas is a key prerequisite to address social concerns as soybean ...

    • Mapa Nacional de Cultivos campaña 2018/2019 

      De Abelleyra, Diego; Banchero, Santiago; Veron, Santiago Ramón; Mosciaro, Maria Jesus; Volante, Jose Norberto; Boasso, Miguel Angel; Castrillo, Silvana Alejandra; Dacunto, Luciana; Ferraina, Antonella; Franzoni, Agustin; Gaitan, Juan Jose; Gómez Taffarel, María Cielo; Moreno, Andrea; Propato, Tamara Sofia (INTA, 2019-09-01)
      La disponibilidad de mapas que describan de manera precisa la localización de los principales cultivos extensivos de grano a escala nacional es un prerrequisito para numerosas aplicaciones. Por ejemplo, la estimación del ...

    • Mapa Nacional de Cultivos campaña 2021/2022 

      De Abelleyra, Diego; Veron, Santiago Ramón; Banchero, Santiago; Iturralde Elortegui, Maria Del Rosario Ma; Zelaya, Daniela Karina; Murray, Francisco; Martini, Juan Pablo; Valiente, Sebastián Omar; Puig, Omar; Maidana, Daniel Agustin; Portillo, Javier Esteban; Pezzola, Nestor Alejandro; Franzoni, Agustin; Kurtz, Ditmar Bernardo; Ybarra, Diego Daniel; Barrios, R.; Regonat, Arturo Jose; Martins, L.; Basanta, Maria; Winschel, Cristina Ines (INTA, 2022-10-01)
      Este informe presenta el Mapa Nacional de Cultivos (MNC) correspondiente a la campaña 2021/2022. De esta manera se completa una secuencia de mapas de 4 campañas agrícolas consecutivas: 2018/2019, 2019/2020, 2020/2021 y ...

    • Mapa Nacional de cultivos, campaña 2022-2023. Versión 1 

      De Abelleyra, Diego; Veron, Santiago Ramón; Banchero, Santiago; Iturralde Elortegui, Maria Del Rosario Ma; Zelaya, Daniela Karina; Murray, Francisco; Martini, Juan Pablo; Valiente, Sebastián Omar; Maidana, Daniel Agustin; Portillo, Javier Esteban; Melilli, Maria Paula; Tejerina Diaz, Fabián Gerónimo; Volante, Jose Norberto; Goytia, Silvia Yanina; Benedetti, Pablo Eduardo; Kurtz, Ditmar Bernardo; Ybarra, Diego Daniel (INTA, 2023-11-01)
      Este informe presenta el Mapa Nacional de Cultivos (MNC) correspondiente a la campaña 2022/2023. De esta manera se completa una secuencia de mapas de 5 campañas agrícolas consecutivas: 2018/2019, 2019/2020, 2020/2021, ...

    • Mapas Nacional de cultivos. Campaña 2020/2021 

      De Abelleyra, Diego; Veron, Santiago Ramón; Banchero, Santiago; Iturralde Elortegui, Maria Del Rosario Ma; Zelaya, Daniela Karina; Murray, Francisco; Martini, Juan Pablo; Valiente, Sebastián Omar; Puig, Omar; Propato, Tamara Sofia; Ferraina, Antonella; Maidana, Daniel Agustin; Portillo, Javier Esteban; Franzoni, Agustin; Pezzola, Nestor Alejandro; Winschel, Cristina Ines; Muñoz, S.; Meza, J.; Kurtz, Ditmar Bernardo; Sapino, Veronica (INTA, 2021-09-01)
      Este informe presenta el Mapa Nacional de Cultivos (MNC) correspondiente a la campaña 2020/2021. Esta nueva edición no solo representa una mejora en términos del número de cultivos considerados y de la mayor extensión ...

    • National-scale soybean mapping and area estimation in the United States using medium resolution satellite imagery and field survey 

      Xiao-Peng, Song; Potapov, Peter V.; Krylov, Alexander; King, LeeAnn; Di Bella, Carlos Marcelo; Hudson, Amy; Khan, Ahmad; Adusei, Bernard; Stehman, Stephen V.; Hansen, Matthew C. (2017)
      Reliable and timely information on agricultural production is essential for ensuring world food security. Freely available medium-resolution satellite data (e.g. Landsat, Sentinel) offer the possibility of improved global ...

    • Soybean frogeye leaf spot [Cercospora sojina] : first weather-based prediction models developed from weather station and satellite data 

      Sepulcri, Maria Gabriela; Moschini, Ricardo Carlos; Carmona, Marcelo Anibal (2015-06-30)
      In Argentina, soybean frogeye leaf spot occurs sporadically. However, particularly in the Pampas Region, the incidence and severity of this fungal disease have significantly increased in the last years. In the present ...