Winter soil N2O emissions from a meat production system under direct grazing of Argentine Pampa

Pérez, Marcelo; Romaniuk, Romina Ingrid; Cosentino, Viviana; Busto, Mercedes; González, Félix A.; Taboada, Miguel Ángel; Alves, Bruno José Rodrigues; Costantini, A.

doi:10.1071/an19517

Cited by 4 publications

(3 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In addition, the temperature was the only observed direct driving factor in this study in the SEM. The temporal and spatial uncertainty in N 2 O emissions were generally attributed to the sensitivity in microbial activity induced by environmental disturbances [17,19]. N 2 O absorption was occasionally observed by the soil in this study, as reported in situ and in incubations [31].…”

Section: Seasonal Variation and Contribution Of N 2 Osupporting

confidence: 73%

See 1 more Smart Citation

The Seasonal Response of N2O Emissions to Increasing Precipitation and Nitrogen Deposition and Its Driving Factors in Temperate Semi-Arid Grassland

Peng,

Qi,

Yin

et al. 2024

Agronomy

View full text Add to dashboard Cite

The accurate assessment of the rise in nitrous oxide (N2O) under global changes in grasslands has been hindered because of inadequate annual observations. To measure the seasonal response of N2O emissions to increased water and nitrogen (N) deposition, one year round N2O emissions were investigated by chamber weekly in the growing season and every two weeks in the non-growing season in semi-arid temperate grasslands northern China. The results showed the temperate semi-arid grassland to be a source of N2O with greater variability and contribution during the non-growing season. The individual effects of water or N addition increased N2O emissions during the growing season, while the effects of water or N addition depended on the N application rates during the non-growing season. Soil properties, particularly soil temperature and water-filled pore space (WFPS), played key roles in regulating N2O emissions. Structural equation modeling revealed that these factors explained 71% and 35% of the variation in N2O fluxes during the growing and non-growing season, respectively. This study suggested that without observations during the non-growing season it is possible to misestimate the annual N2O emissions and the risk of N2O emissions increasing under global change. This would provide insights for future management strategies for mitigating greenhouse gas emissions.

show abstract

Section: Seasonal Variation and Contribution Of N 2 Osupporting

confidence: 73%

“…These results suggested a high risk of N 2 O emissions increasing during growing season under global change. However, the dynamics and contribution of N 2 O emissions during the non-growing season remain neglected [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

The Seasonal Response of N2O Emissions to Increasing Precipitation and Nitrogen Deposition and Its Driving Factors in Temperate Semi-Arid Grassland

Peng,

Qi,

Yin

et al. 2024

Agronomy

View full text Add to dashboard Cite

show abstract

“…Algunos autores, por ejemplo, utilizan frecuencias de mediciones constantes a lo largo del período estudiado (Della Chiesa et al 2019). Otros, dirigen las mediciones en función del momento de la incorporación de N (Lombardi et al 2022;Maris et al 2021;Pérez et al 2021), del clima o de la fenología del cultivo (Vangeli et al 2022). En este trabajo intensificamos las mediciones en los momentos favorables para la nitrificación o la desnitrificación (inmediatamente después de la aplicación y luego de eventos de lluvia) y asumimos que la tasa de emisión es baja en días alejados del momento de fertilización y sin lluvia (Lampe et al 2006;Vangeli et al 2022).…”

Section: ₄₂₂ Si P�� unclassified

Reutilizar purines de tambo como oportunidad para reciclar nitrógeno y reducir su impacto ambiental

et al. 2023

View full text Add to dashboard Cite

R��.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 podría estimular la volatilización de amoníaco (NH 3 ) y la emisión de óxido nitroso (N 2 O), con consecuencias sobre el calentamiento global. Nuestros objetivos fueron cuantificar las salidas de NH 3 y N 2 O en un cultivo de maíz fertilizado con purín o urea aplicados superficialmente y relacionar las emisiones de N 2 O con los cambios en el contenido de amonio, nitrato y agua del suelo. Se realizó un experimento manipulativo a campo en el que se midieron ambas salidas gaseosas durante una campaña agrícola. El purín estimuló la volatilización de NH 3 al día siguiente de la aplicación (2.7±0.25 vs. 1.1±0.25 y 0.6±0.25 kg N-NH 3 .ha -1 .dia -1 para purín, urea y control, respectivamente), y la emisión directa de N 2 O durante los tres días siguientes a la aplicación (75±13 vs. 28±5 y 26±6 µg N-N 2 O. m -2 .h -1 para purín, urea y control, respectivamente). A partir del cuarto día, la volatilización de NH 3 fue mayor con urea y las emisiones de N 2 O se equipararon entre tratamientos. La volatilización acumulada durante el ciclo de maíz fue mayor con urea, y la emisión directa de N 2 O acumulada fue similar para ambos fertilizantes. Las emisiones de N 2 O estuvieron asociadas a la humedad del suelo, que aumentó inicialmente por el agua del purín y luego por las lluvias. Las salidas de NH 3 +N 2 O de los fertilizantes luego de descontar el control fueron mayores con urea que con purín (10.8±1.2 y 3.1±0.7 kg N/ha o 0.53±0.06 y 0.18±0.04 kg N/t MS), y el rendimiento de maíz fue similar entre tratamientos (19.0±0.7 t MS/ha). Estos resultados muestran que el uso de purines es una práctica promisoria para reducir el impacto ambiental de los fertilizantes sintéticos.[Palabras clave: uso agronómico de purín, volatilización de amoníaco, emisión de óxido nitroso, Pampa Ondulada] A��. Reuse of dairy ca�le slurry as an opportunity to recycle nitrogen and reduce its environmental impact. Dairy ca�le slurry (liquid mixture of manure and water from the milking operation) can be reused for agricultural production in replacement for synthetic fertilizers. However, its high nitrogen (N) concentration could stimulate the volatilization of ammonia (NH 3 ) and nitrous oxide (N 2 O) emission, with consequences for global warming. Our objectives were: to quantify NH 3 and N 2 O loss in maize fertilized with surface-applied dairy ca�le slurry or urea, and to relate N 2 O emission with soil ammonium, nitrate and water contents. We performed a manipulative field experiment where we measured both gaseous losses during an agricultural campaign. Slurry enhanced NH 3 volatilization the day after the application (2.7±0.25 vs. 1.1±0.25 and 0.6±0.25 kg N-NH 3 .ha -1 .day -1 for slurry, urea and the control, respectively) and direct N 2 O emission during three days after the application (75±13 vs. 28±5 y 26±6 µg N-N...

show abstract

Methane and nitrous oxide emissions from dung patches deposited by grazing cattle supplemented with maize grain

Lombardi

Alvarado²,

Ricci

et al. 2021

Animal Feed Science and Technology

View full text Add to dashboard Cite

Winter soil N2O emissions from a meat production system under direct grazing of Argentine Pampa

Cited by 4 publications

References 21 publications

The Seasonal Response of N2O Emissions to Increasing Precipitation and Nitrogen Deposition and Its Driving Factors in Temperate Semi-Arid Grassland

The Seasonal Response of N2O Emissions to Increasing Precipitation and Nitrogen Deposition and Its Driving Factors in Temperate Semi-Arid Grassland

Reutilizar purines de tambo como oportunidad para reciclar nitrógeno y reducir su impacto ambiental

Methane and nitrous oxide emissions from dung patches deposited by grazing cattle supplemented with maize grain

Contact Info

Product

Resources

About