Table 3 (a): Chemical analysis of field sand samples, (b): Available macro, micronutrients, and heavy metals content of the sand samples.

From: A sandponics comparative study investigating different sand media based integrated aqua vegeculture systems using desalinated water

(a)

Sample

pH 1:2.5

EC ds/m

SP

Anions (meq./L)

Cations (meq./L)

HCO3

Cl

SO4

Cu

Mg

Na

K

T2

7.7

4.84

18

1.89

21.19

26.94

21.05

7.75

20.87

0.34

T3

7.3

4.52

18

2.12

16.95

32.68

22.37

8.07

20.87

0.45

T4

7.9

3.68

18

1.89

16.1

22.37

23.68

10.01

6.57

0.1

(b)

Sample no.

(mg/kg)

N

P

K

Mn

Zn

Fe

Cu

Cd

Co

Pb

T2

52

0.03

37.2

2.4

0.21

2.98

0.33

* < 0.1

0.29

* < 1.5

T3

58

0.03

57.7

0.76

0.16

1.35

0.31

0.04

0.2

0.12

T4

53

0.02

29.8

0.19

0.46

1.23

0.29

0.07

0.33

* < 1.5

  1. *Detection Limit (μg/kg).
  2. T2 October, T3 Benu Suef location, T4 Fayoum, SP Saturation percentage, EC electrical conductivity, HCO3 hydrogen carbonate, SO4 sulfate, Cl chloride, Cu copper, Mg magnesium, Na sodium, K potassium, N nitrogen, Fe iron, Mn manganese, Pd lead, Co cobalt, P phosphorus, Zn zinc, Cd cadmium.
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