Table 5 - uploaded by David E. Schimmelpfennig
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Inorganic, synthetic fertilizer is a critical ingredient in the global food economy. In 2008, global consumption of the three main agricultural fertilizer nutrients—nitrogen (N), phosphate (P2O5), and potash (KCl, or potassium)— totaled 162 million metric tons (FAO). Nitrogen accounts for about 63 percent of the total tonnage of fertilizers applied...