This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Image title
Amount of nitrogen fertilizer applied averaged within the 0.5 degree grid cell. Grid cell values are expressed in kilograms per hectare (kg/ha) ranging from 0-370. The data values were computed by fusing global maps of harvested areas for 175 crops with national information on fertilizer use for each crop.
Author
Potter, P., Ramankutty, N., Bennett, E.M. and Donner, S.D.
Copyright holder
This work is licensed to the public under the Creative Commons Attribution 2.5 License.