Table 2 Micronutrient and macronutrient concentrations in POME FD (treatment) and rain water (control).

From: The effect of Palm Oil Mill Effluent Final Discharge on the Characteristics of Pennisetum purpureum

Element

POME FD (ppb)

Rain water (ppb)

Macronutrient

Calcium (Ca)

75,721.30 ± 11,302.60a

8,210.92 ± 284.56b

Potassium (K)

9,571.31 ± 1,537.03a

3,816.69 ± 93.71b

Magnesium (Mg)

320,639.44 ± 3,379.20a

980.28 ± 32.85b

Micronutrient

Copper (Cu)

6.69 ± 0.32a

0.38 ± 0.03b

Iron (Fe)

514.76 ± 9.91a

60.48 ± 1.75b

Manganese (Mn)

10.86 ± 0.70b

14.29 ± 0.78a

Zinc (Zn)

3.64 ± 0.17a

1.34 ± 0.48b

  1. a,bMean significant differences at p-value < 0.0001, according to Duncan’s Multiple Range Test.