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Teagasc_Johnstown_grassland_N2O_dataset_2022-2024.

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• Digestate
• Grassland
• Multispecies grassland
• Nitrous oxide emiss...

Data Owner	Dr John Finn
Data Owner Email	john.finn@teagasc.ie
Theme	Agriculture
Rights notes	This dataset is made available under a Creative Commons Attribution–NonCommercial (CC BY-NC) license. This license enables reusers to distribute, remix, adapt, and build upon the material in any medium or format, so long as attribution is given to the creator. The license allows for commercial use. If you remix, adapt, or build upon the material, you must license the modified material under identical terms. CC BY-SA includes the following elements: BY: credit must be given to the creator. SA: Adaptations must be shared under the same terms.
Language	English
Provenance information	Data collection involved high-resolution N₂O sampling following each fertiliser application: four times per week in the first two weeks, twice weekly in the next two weeks, and weekly thereafter until the next application. In winter months (November–March), sampling frequency was reduced to monthly. Cumulative N₂O emissions were calculated by trapezoidal integration of daily fluxes. Emission intensities were scaled to nitrogen yield, and emission factors estimated using IPCC and Global Research Alliance guidelines. In year one, digestate N application was unintentionally lower due to delays in nutrient analysis, but this was corrected in year two by pre-application C and N testing. The dataset was further refined through statistical analyses (using RStudio), with data transformations applied where needed to meet assumptions of normality and variance
OR: specify what period of time the dataset covers	April 2022 – April 2024
High Value Dataset (HVD)	No