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Country- and crop-process-level synthetic nitrogen application rates (kg N ha\(^{-1}\)), derived from Mueller et al. (2012). Used as reference crop-specific N rates in the WHEP nitrogen pipeline.

Usage

mueller_synthetic_n

Format

A tibble with one row per crop-process-country combination containing:

  • proc_code: Internal process code (e.g. "p001").

  • crop_process: Descriptive crop process name (e.g. "Rice production").

  • crop_original: Crop name as in the source dataset.

  • unit: Unit of the rate value (always "kgN/ha").

  • iso3c: ISO 3166-1 alpha-3 country code.

  • rate_value: Nitrogen application rate (kg N ha\(^{-1}\)).

Source

Mueller, N. D. et al. (2012). Closing yield gaps through nutrient and water management. Nature, 490(7419), 254–257. doi:10.1038/nature11420

Examples

head(mueller_synthetic_n)
#> # A tibble: 6 × 6
#>   proc_code crop_process    crop_original unit   iso3c rate_value
#>   <chr>     <chr>           <chr>         <chr>  <chr>      <dbl>
#> 1 p001      Rice production rice          kgN/ha ARM       18.4  
#> 2 p001      Rice production rice          kgN/ha AFG        2.21 
#> 3 p001      Rice production rice          kgN/ha ALB       50.4  
#> 4 p001      Rice production rice          kgN/ha DZA       14.6  
#> 5 p001      Rice production rice          kgN/ha AGO        0.893
#> 6 p001      Rice production rice          kgN/ha ARG       36.0