Measurements and Modelling of Nitrogenous Gases Emissions from Agricultural Cropping Systems

Anthropogenic climate change is driven by increasing greenhouse gas emissions, with agriculture playing a central role in global nitrogen cycling. Nitrous oxide (N₂O) is a key greenhouse gas due to its high global warming potential (265–298 times that of CO₂ over 100 years) and its contribution to stratospheric ozone depletion. Agricultural systems also emit other nitrogenous gases — ammonia (NH₃) and nitrogen oxides (NOx) — which significantly impact air quality, ecosystem health, and human well-being through particulate matter formation and atmospheric deposition. These emissions arise from biogeochemical processes such as nitrification, denitrification, and volatilization, which are strongly influenced by soil moisture, temperature, oxygen availability, and nitrogen inputs. Management practices including fertilizer type, timing, and placement, as well as irrigation, residue management, and tillage, play a critical role in regulating these emissions. A comprehensive understanding of nitrogenous gaseous emissions across agricultural systems is therefore essential for developing sustainable and climate-resilient nutrient management strategies.The goal of this Research Topic is to collect original research articles, reviews, and short reports on measurements and modelling of nitrogenous gases (N₂O, NH₃, and NOx) emissions from agricultural cropping systems. We particularly encourage contributions that bridge field-scale processes with regional to global assessments, and that link emissions to sustainable development goals (SDGs), climate mitigation, and resilient agricultural practices. We welcome submissions on themes that include, but are not limited to, the following:• The role of agronomic management — nitrogen fertilizers, irrigation, and tillage — on N₂O, NH₃, and NOx emissions.• The influence of diversified agricultural systems, including crop rotations, cover crops, mixed/intercropping systems, and legume-based cropping systems, on nitrogenous gas emissions, nitrogen cycling, and soil health.• Integration of multiple nitrogen loss pathways, including trade-offs and synergies among N₂O, NH₃, and NOx emissions.• The impact of enhanced-efficiency fertilizers on nitrogenous gas emissions and nitrogen use efficiency.• The role of organic amendments, crop residues, and waste management on N₂O, NOx, and NH₃ emissions.• N₂O, NH₃, and NOx emissions across different soil types, climatic zones, and moisture regimes, from field to regional and global scales.• High-resolution and long-term measurements of nitrogenous gas emissions during cropping periods, including spatial and temporal variability.• Data-driven modelling, empirical approaches, and nitrogen balance/equation-based analyses for quantifying emissions and improving emission inventories.• Integration of N₂O, NH₃, and NOx emissions with carbon–nitrogen interactions, life-cycle assessment, and whole-system nutrient budgeting.• Assessment of emissions in the context of global frameworks such as SDGs (e.g., SDG 2, 6, 12, and 13) and climate-smart agriculture.• Adaptation and mitigation strategies such as precision nutrient management, optimized cropping systems, and climate-resilient practices while sustaining productivity and environmental quality.This Research Topic focuses on advancing the understanding of nitrogenous gaseous emissions — including N₂O, NH₃, and NOx — from agricultural cropping systems through integrated experimental, observational, and modelling approaches. We invite contributions that investigate how agronomic practices such as fertilizer management, irrigation, tillage, crop rotations, cover cropping, and organic amendments influence emissions and nitrogen cycling across diverse soils, climates, and production systems. Studies addressing spatial and temporal variability, multi-scale assessments (field to regional and global), and interactions among different nitrogen loss pathways are particularly encouraged. Submissions employing advanced measurement techniques, long-term datasets, life-cycle assessments, and data-driven or process-based models are welcome. We also seek studies that evaluate trade-offs among greenhouse gas emissions, air pollutants, and nutrient use efficiency, and that contribute to the development of sustainable and climate-smart agricultural systems. Manuscripts may include original research articles, reviews, short communications, and methodological innovations. Topic editors: Upendra Singh, Rabin Bhattarai, Rajiv Kumar Srivastava Source: https://www.frontiersin.org/research-topics/82972/measurements-and-modelling-of-nitrogenous-gases-emissions-from-agricultural-cropping-systems