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Global potassium fertiliser consumption PDF Print

The main potassium fertiliser source is potassium chloride (KCl), followed by potassium sulphate (K2SO4), and potassium and magnesium sulphate double salts (K2SO4.MgSO4). Potassium nitrate (KNO3) accounts for only 2 % of the total global potassium fertiliser consumption, expressed in K2O units (Table 1).


Table 1. Estimated global consumption of K fertilisers in 2008, expressed in millions of metric tons of product, its equivalent in millions of MT of K2O units and the relative contribution of each K fertiliser of the total K2O consumption (IFA, 2009)

K-fertiliser

Global Fertiliser Consumption

Type

% K2O

million MT product

million MT K2O

% K2O

KCl

60-62

52,0

31,2

92,0

K2SO4

50-52

3,5

1,8

5,3

KNO3

45-46

1,4

0,6

1,8

K2SO4.MgSO4

21-22

1,3

0,3

0,9

Total

33,9

100,0


 

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