Global evaluation of inhibitor impacts on ammonia and nitrous oxide emissions from agricultural soils: A meta-analysis

Inhibitors are widely considered an efficient tool for reducing nitrogen (N) loss and improving N use efficiency, but their effectiveness is highly variable across agroecosystems. In this study, we synthesized 182 studies (222 sites) worldwide to evaluate the impacts of inhibitors (urease inhibitors [UI], nitrification inhibitors [NI] and combined inhibitors [UINI]) on crop yields and gaseous N loss (ammonia [NH3] and nitrous oxide [N2O] emissions) and explored their responses to different management and environmental factors including inhibitor application timing, fertilization regime, cropping system, water management, soil properties and climatic conditions using subgroup meta-analysis, meta-regression and multivariate analyses, including multiple linear regression and random forest regression. The UI were most effective in enhancing crop yields (by 5%) and reducing NH3 volatilization (by 51%) whereas NI were most effective at reducing N2O emissions (by 49%). The application of UI mi..., , , # Data from: Global evaluation of inhibitor impacts on ammonia and nitrous oxide emissions from agricultural soils: A meta-analysis

[https://doi.org/10.5061/dryad.0k6djhb2n](https://doi.org/10.5061/dryad.0k6djhb2n)

## Description of the data and file structure

File name: Data_for_inhibitor_meta-analysis.csv

File format: CSV

Instruction: All abbreviations, units, and column headings are included in the dataset.

**Definitions of all variables from the column headers of the submitted data file are as below:**

* Reference: Reference number of the reviewed article.
* Publication: Previously published article from which the data was obtained.
* Country: The country in which the experimental site was located.
* Field/Lab: The experiment was carried out in field or in lab.
* Inhibitor type: The type of the inhibitor used in the experiment, including nitrification inhibitor (NI), urease inhibitor (UI) and double use of NI and UI (DI).
* Inhibitor: Specific inhibitor product used in ...,