Table 2 The types of fertilisers studied and their composition (nutrients).

From: Heavy metals and natural radioactive isotopes in phosphate and compound fertilisers and their impact on human health

Sample code

Fertilizer type*

Composition of fertilizer (%)

N

P2O5

K2O

F1

SSP

-

17.72 ± 1.42

-

F2

SSP

-

18.68 ± 2.24

-

F3

TSP

-

40.32 ± 3.22

-

F4

TSP

 

39.28 ± 3.14

-

F5

NPK

4.29 ± 0.30

8.88 ± 0.71

19.32 ± 1.16

F6

NPK

4.40 ± 0.31

9.94 ± 0.80

13.60 ± 0.82

F7

NPK

3.93 ± 0.28

9.00 ± 0.72

20.34 ± 1.22

F8

NPK

4.64 ± 0.32

10.10 ± 0.81

20.54 ± 1.23

F9

NPK

11.84 ± 0.83

10.32 ± 0.82

17.56 ± 1.05

  1. *SSP - Single Superphosphate, TSP - Triple Superphosphate, NPK - Nitrogen, Phosphorus and Potassium.
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