Enhancing the Phytoremediation of Hydrocarbon-Contaminated Soils in the Sudd Wetlands, South Sudan, Using Organic Manure

Table 4

Treatments effect on the total plant dry weight of four phytoremediators.

Phytoremediators (plant species)	TPH, 0 gkg^−1 soil			TPH, 75 gkg^−1soil
	M, 0 gkg^−1 soil (g)	M, 5 gkg^−1 soil	M, 10 gkg^−1 soil	M, 0 gkg^−1 soil (g)	M, 5 gkg^−1 soil	M, 10 gkg^−1 soil
H. rufa	13.5	15.1	15.9	7.1	10.1	10.9
O. longistaminata	7.8	8.2	9.2	4.2	6.1	6.7
T. diversifolia	12.1	15.2	16.5	9.0	11.3	12.0
S. arundinaceum	15.5	20.2	20.9	10.1	12.1	13.2
CV %	2.8
LSD (5%)	0.9

TPH = total petroleum hydrocarbon; M = manure.