The effects of poultry manure from different sources were evaluated in two growing seasons on the growth parameters and marketable yield of leaf amaranth (Amaranthus cruentus (hybridus) L) Amaranthaceae in a field experiment conducted on a slightly acid sandy loam Oxic Tropudalf at the Teaching and Research Farm, University of Ado-Ekiti. The treatments consisted of 10, 20 and 30 metric tonnes (MT) /ha each of manure collected from turkey, layer and broiler pens, and a control ( 0 MT/ha ) in four replications. Plant height, leaf length, number of leaves, stem girth and marketable yield were measured at 5, 6 and 7 weeks after sowing. Plant height, number of leaves and leaf area increased with the application of poultry manure from the different sources. The application of 30 MT/ha rate of manure from broiler and layers significantly (P<0.05) produced the highest number of leaves, plant height and marketable yield.