Figure 1: Inputs, outputs and agronomic soil budgets of N (left) and P (right) for cropland.
From: Lessons from temporal and spatial patterns in global use of N and P fertilizer on cropland
Inputs (including fertilizer, manure, biological N fixation, N deposition), outputs (including N and P withdrawal in harvested parts of crops), and agronomic soil budget (difference between inputs and outputs) per hectare of cropland for N (left) and P (right) from 1970 to 2010 for the world (a,b), high-income countries (USA, Canada, Western Europe, Japan, Australia, New Zealand) (c,d), China and India (e,f), transition countries (Eastern Europe and former Soviet Union) and sub-Saharan Africa (Africa excluding Algeria, Egypt, Libya, Morocco, Tunisia, Western Sahara and South Africa) (g,h) (i,j). The graphs for P also show the residual P, which is the agronomic soil budget minus runoff losses. Data on inputs and outputs for 26 world regions (and SI Datasets; region definition, see Table SI1) as well as grid maps of P inputs and outputs needed to compute the residual P budget for 2010 (Figure SI5) are available in the Supplementary Information.
