Table 1 Characteristics of fertilizers used in the research.

From: Intelligent detection of potassium oxide in potassium sulfate fertilizer using hyperspectral imaging and artificial neural networks

Sample No

Composition

K2O (%)

Na (%)

CL (%)

Ca (%)

pH

1

50

2.7

1

0.4

1.45

2

50.1

2.6

1.21

0.4

2.52

3

50.2

3

1.6

0.4

2.26

4

50.4

2.8

1.30

0.4

2.84

5

50.5

2.3

1.87

0.46

2.93

6

50.6

2.7

0.4

0.4

2.82

7

50.07

2.7

2.46

0.48

2.92

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