Table 1 The main composition of kelp waste.

From: Effect of Kelp Waste Extracts on the Growth and Development of Pakchoi (Brassica chinensis L.)

Organic substances

Macro elements (g/kg)

Trace elements (mg/kg)

Alginic acid (%)

15.60 ± 0.22

N

36.39 ± 0.53

Fe

1091.50 ± 44.73

Amino acids (%)

20.57 ± 0.07

P

3.13 ± 0.21

Mn

23.31 ± 1.15

Fiber (%)

28.68 ± 0.78

K

1.20 ± 0.01

Cu

5.71 ± 0.21

Organic matter (%)

67.00 ± 2.33

Ca

15.43 ± 0.13

Zn

66.88 ± 2.95

  

Mg

2.46 ± 0.04

B

46.89 ± 4.85

  1. The main composition of KWE was described by Zheng et al.14. Values are mean ± SD (n = 3).
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