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Table 1 Mean concentration of the ions extracted from control samples of soil I and II, in deionized water (μg per g of the soil) obtained in triplicated experiments (Soil I, Soil II); and the mean concentration of ions released into the aqueous environment from the granulate free of the protein (μg per g of granulate)

From: Mechanism of nutrition activity of a microgranule fertilizer fortified with proteins

 

Na+

K+

Mg2+

Ca2+

\( \mathrm{N}{\mathrm{H}}_4^{+} \)

Cl

\( \mathrm{N}{\mathrm{O}}_3^{-} \)

\( \mathrm{P}{\mathrm{O}}_4^{3-} \)

\( \mathrm{S}{\mathrm{O}}_4^{2-} \)

soil I

3.5

2.9

2.3

16.4

1.7

2.2

0.9

106.7

soil II

7.7

14.2

3.1

75.4

12.6

3.2

15.9

149.1

microgranule free of the protein

3.8

1.5

0.1

0.2

0.0

0.1

0.1

0.5

2.9