n2o  (Air Liquide)

Journal: Biology and Fertility of Soils

Article Title: Fate of synthetic fertilizer nitrogen in a maize system depends on dairy manure type: insights from an isotopic tracing field study

doi: 10.1007/s00374-025-01946-w

Figure Lengend Snippet: Fig. 2 Fertilizer-derived N2O emissions and cumulative N2O emissions post-fertilizer applica tion in the fertilizer treatment of 180 kg N ha−1. Mean values are shown for both fertilizer- derived (light and striped portion) and total (the full bar height) N2O emissions. Vertical bars indicate standard error (n = 4). No significant differences in fertilizer-derived N2O emissions were observed among manure treatments (p > 0.05). NM: no manure; LM: liquid manure; CS: chemically-separated solids; PS: physically-separated solids. The data shown here include only the 180 kg N ha−1 treatment (n = 4) and therefore differ from Table 3, where values for each manure treatment are averaged across all fertilizer rates (n = 12)

Article Snippet: The GC was calibrated using analytical grade N2O standards (Airgas Inc., Madison, WI) prepared at the same time as the samples were collected.

Techniques: Fertilizer, Derivative Assay

Journal: Biology and Fertility of Soils

Article Title: Fate of synthetic fertilizer nitrogen in a maize system depends on dairy manure type: insights from an isotopic tracing field study

doi: 10.1007/s00374-025-01946-w

Figure Lengend Snippet: Fig. 4 Fate of applied 15N-labeled synthetic fertilizer in sub plots receiving 180 kg N ha−1, expressed as recovery (percent age of applied fertilizer N) in soil, crops, N2O emissions, and other losses not measured in this study (e.g., ammonia (NH3) volatilization, emissions of nitric oxide (NO) and dinitrogen gas (N2), and NO3

Article Snippet: The GC was calibrated using analytical grade N2O standards (Airgas Inc., Madison, WI) prepared at the same time as the samples were collected.

Techniques: Labeling, Fertilizer