Vegetables’ nutrient concentrations

Parameter

n

Mean

SD

Min

Max

K (%)

16

4.74

1.04

2.96

6.41

Mg (%)

16

0.14

0.08

0.05

0.29

Cu (mg/kg)

16

0.08

0.01

0.07

0.08

Soil properties

pH (H₂O)

16

6.41

0.39

5.72

6.98

EC (dS/m)

16

0.11

0.06

0.02

0.30

CEC (cmolc/kg)

16

19.41

5.34

12.40

33.60

P (mg/kg)

16

94.42

40.02

44.80

145.6

Zn (mg/kg)

16

14.70

11.64

3.90

40.6

Cu (mg/kg)

16

2.73

0.60

2.00

4.10

Pearson correlation coefficients (r)

Soil Zn

Soil Cu

Soil P

Soil pH

Vegetable K

16

0.538*

0.0.451

0.528*

-0.143

Vegetable Mg

16

0.703*

0.553*

0.434

-0.325

Vegetable Cu

16

0.401

0.212

0.536*

-0.645*