Table 6: P concentration of six plant species grown on sand media amended, without biosolids (Standard), with biosolids, and with phosphate rock.

PlantTreatmentShootRoot
mg kg−1

ChickpeaStandard1,260c922.0c
Biosolids2,044b1,137b
Phosphate rock2,580a1,513a

RapeStandard1,743c1,564c
Biosolids2,189b2,203b
Phosphate rock3,354a2,707a

Swiss chardStandard1,753c1,372c
Biosolids2,141a3,261a
Phosphate rock2,029a2,631b

CornStandard1,198a707.0b
Biosolids1,192a763.0a
Phosphate rock638.0b556.0c

Sudan grassStandard1,088b676.0b
Biosolids1,138a814.0a
Phosphate rock756.0c553.0c

Durum wheatStandard1,744b956.0b
Biosolids2,537a1,716a
Phosphate rock783.0c638.0c

The differences of the P concentrations among the treatments for each plant were tested by one-way ANOVA. In each column of each plant and among treatments, values followed by same lowercase letter were not significantly different at .