Effects of Different Rates of Poultry Manure and Split Applications of Urea Fertilizer on Soil Chemical Properties, Growth, and Yield of Maize

Table 4

Correlation coefficient between growth and yield parameters of maize and soil chemical properties (means of Site I and Site II).

	Plant height	Number of leaves/plant	Leaf area	Number of grains/cob	Weight of cob	Weight of 1000 grains
pH	0.25	0.24	0.28	0.15	0.20	0.32
OM	0.46	0.40	0.48	0.38	0.43	0.51
N	0.91	0.82	0.97	0.95	0.97	0.92
P	0.54	0.58	0.62	0.58	0.57	0.69
K	0.67	0.59	0.70	0.58	0.64	0.70
Ca	0.70	0.61	0.75	0.60	0.63	0.78
Mg	0.70	0.61	0.75	0.60	0.63	0.78

Significant difference at ; significant difference at