N-P-K fertilizer application rates by crop and country for circa 2020

All fertilizer application rates are on elemental basis (P = P2O5 x 0.436; K = K2O x 0.830). Imputation to build complete crop x year N-P-K time series data: Subnational- to global-scale understanding is built using FUBC information collected from individual countries and sub-nationally with ~800,000 data points for 1980-2022. Briefly, a three-step imputation process with an additional preprocessing was used. In the first step long-term average FUBC was determined. In the second step the exact year observations was identified, which is then allowed to pass on unchanged. In a final third step the numbers from the first and second step are readjusted (observations are not adjusted) to flexibly match the total agricultural fertilizer consumption in a country as reported by the FAO. Sub-national FUBC rates for ten major crops in 25 agriculturally important countries use a similar three-step iteration method. For the remaining countries, only the national FUBC values are reported. For m..., , # N-P-K fertilizer application rates by crop and country for circa 2020

Dataset DOI: [10.5061/dryad.59zw3r2mq](10.5061/dryad.59zw3r2mq)

## Description of the data and file structure

Description of the data present in each sheet of the Excel workbook (Supplementary_Data_1.xlsx):

The data is present in several sheets.

Sheet 1 is named \"Description\", and it contains metadata explaining the Excel data file structure.

Sheet 2 is named \"Regional Summary\" and it contains information on N-P-K fertilizer application rates for circa 2020 at global and regions scales for all crops and specific crops. Column A in this \"Regional Summary\" sheet is the name of the region. Column B is the data period, which is always circa 2020 (2018-2022 average). Column C in the \"Regional Summary\" sheet is the FAO denoted crop code, and column D is the crop name. For rows 4 to 23, we provide a summary for all crops, which is exactly what it means - fertilizer applications on average, for all crops. The applicat...,