We provide the fertilization rate per our five canonical crop types, i.e. for both annual and perennial C3 and C4 crops, as well as for nitrogen fixing crops. The variables’ names are fertl_c3ann, fertl_c3per, fertl_c4ann, fertl_c4per and fert_c3nfx. The data are provided on an annual times step on the land surface of a global 0.5° × 0.5° grid. The units are kilograms per year and per hectare. Data is available for the following time periods: historical (1861-2005), rcp26soc+rcp60soc (2006-2099) (see below for detailed information).