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Absence of the nitrous oxide reductase gene cluster in commercial alfalfa inoculants is probably due to the extensive loss of genes during rhizobial domestication
(Springer, 2018-08)As other legume crops, alfalfa cultivation increases the emission of the greenhouse gas nitrous oxide (N2O). Since legumesymbiotic nitrogen-fixing bacteria play a crucial role in this emission, it is important to understand ... -
Adequate vegetative cover decreases nitrous oxide emissions from cattle urine deposited in grazed pastures under rainy season conditions
(Nature Publishing, 2019-01-29)A decline in pasture productivity is often associated with a reduction in vegetative cover. We hypothesize that nitrogen (N) in urine deposited by grazing cattle on degraded pastures, with low vegetative cover, is highly ... -
Aporte de la fijación biológica de nitrógeno a la emisión de N2O desde el suelo con cultivo de soja = Contribution of biological nitrogen fixation to N2O emission from soil under soybean
(Asociación Argentina de la Ciencia del Suelo, 2015)El óxido nitroso (N2O) es el principal gas de efecto invernadero emitido desde el sector agrícola y su producción biológica en los suelos se genera por dos vías, la nitrificación y la desnitrificación. Recientemente el ... -
CO2 and N2O flux balance on soybean fields during growth and fallow periods in the Argentine Pampas—A study case
(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 ... -
Comparison of field measurement methods of nitrous oxide soil emissions: from the chamber to the vial
(Sociedade Brasileira de Ciencia do Solo, 2020-07-16)Nitrous oxide (N2O) is a greenhouse gas that contributes substantially to global climate change. The N2O soil emissions have a large uncertainty because of its low atmospheric concentration levels and enormous spatial and ... -
Cover crop species affect N2O emissions at hotspot moments of summer crops
(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 ... -
Crop intensification with sustainable practices did not increase N2O emissions
(Elsevier, 2020-04-15)Nitrous oxide (N2O) is the most important greenhouse gas produced by agricultural soils and is a byproduct of microbial nitrification and denitrification processes. The N2O emission rates depend on soil, climatic ... -
Effects of fertilizer type on nitrous oxide emission and ammonia volatilization in wheat and maize crops
(Wiley, 2022-01-28)About half of the applied nitrogen (N) is not consumed by crops, causing environmental and economic costs. This N can be lost as ammonia (NH3) volatilization, nitrous oxide (N2O) emission or leaching, among others. This ... -
Emisiones de oxido nitroso en plantaciones forestales y ambientes naturales del Delta del Paraná
(Asociación Argentina Ciencia del Suelo, 2024-05-21)Las prácticas de forestación son alternativas para aumentar el secuestro de carbono y mitigar el cambio climático. Sin embargo, también podrían crear condiciones edáficas y ambientales que propicien la emisión de N2O. El ... -
Emisiones de óxido nitroso desde suelos agrícolas y alternativas para mitigarlas
(Asociación Argentina para el Progreso de las Ciencias, 2018)El óxido nitroso (N2O) es un gas efecto invernadero con un poder de calentamiento equivalente a 296 veces mayor que el del dióxido de carbono (CO2). El N2O es producido a partir del nitrógeno mineral que entra a los ... -
Evaluación de las emisiones de N2O provenientes de excretas bovinas en un sistema pastoril
(Asociación Argentina Ciencias del Suelo (AACS), 2024-05-21)Los sistemas pastoriles bovinos del Chaco Seco con pasturas megatérmicas todavía no reportan valores de emisión de N2O provenientes de las excretas generadas. El objetivo de este trabajo fue cuantificar la emisión de N2O ... -
Evaluation of nitrous oxide emission by soybean inoculated with Bradyrhizobium strains commonly used as inoculants in South America
(Springer, 2022-01-13)Aims The purpose of this work was to analyze the agronomic and environmental performance of soybean plants inoculated with the Bradyrhizobium strains widely used as soybean biofertilizers in South America and to determine ... -
Hierarchy of factors driving N2O emissions in non‐tilled soils under different crops
(Wiley, 2013-10)Nitrous oxide (N2O) is emitted to the atmosphere as a by‐product of nitrification and denitrification by soil microbial processes. Differences in climate, soil and management regulate these processes, causing N2O emissions ... -
Increases in nitrogen use efficiency decrease nitrous oxide emissions but can penalize yield in sugarcane
(Springer, 2021-11)Nitrogen (N) fertilization strategies focused on increasing nitrogen use efficiency (NUE) and decreasing nitrous oxide (N2O) emissions are important for sustainable crop production. In sugarcane, however, a joint assessment ... -
MAGGnet : an international network to foster mitigation of agricultural greehouse gases
(2016)Research networks provide a framework for review, synthesis and systematic testing of theories by multiple scientists across international borders critical for addressing global-scale issues. In 2012, a GHG research network ... -
Methane and nitrous oxide emissions from dung patches deposited by grazing cattle supplemented with maize grain
(Elsevier, 2021-07-13)Feeding management represents an opportunity to improve cattle performance in grazing-based production systems and to mitigate emissions of greenhouse gases (GHG) from livestock production. However, it is unclear how diet ... -
Nitrous oxide emission estimation from managed soils in Argentina: Differences between IPCC 2006 guidelines and the IPCC 2019 refinemet
(Facultad de Agronomía, Universidad de Buenos Aires, 2022-10-01)Based on the IPCC 2006 guidelines, the total GHG emission for 2016, in Argentina, were estimated to reach a total net 364 MtCO2eq. Particularly, N2O emissions from managed soils sector represented 12% of total emissions. ... -
Nitrous oxide emissions from a typical argiudol soil with organic and chemical amendments = Emisiones de óxido nitroso desde un suelo argiudol típico con enmiendas orgánicas y químicas
(Asociación Argentina de la Ciencia del Suelo, 2022-06-01)Diversification in fertilizer sources will be necessary to meet the growing demand for food worldwide. For this reason, organic amendments emerge as a synthetic fertilizers alternative. Composting organic waste stabilizes ... -
Nitrous oxide emissions in maize on mollisols in the Pampas of Argentina
(Elsevier, 2021-01-14)The objectives of this study were i) to measure the soil N2O fluxes in a cropping system currently adopted by farmers of the region (FP), and in an ecologically intensified cropping system (EI) over two consecutive maize ... -
Reutilizar purines de tambo como oportunidad para reciclar nitrógeno y reducir su impacto ambiental
(Asociación Argentina de Ecología, 2023-08)Los purines de tambo (excretas mezcladas con agua de las instalaciones de ordeñe) se pueden reutilizar en la producción agrícola como reemplazo de los fertilizantes sintéticos. Sin embargo, su alta concentración nitrogenada ...