Table 2.

Effects of poultry manure and split urea fertilizer on soil chemical properties.

Split urea fertilizer (kg ha−1)	Poultry manure rate (t·ha−1)	pH (water)		OM (%)		N (%)		P (mg kg−1)		K (cmol kg−1)		Ca (cmol kg−1)		Mg (cmol kg−1)
		Site I	Site II	Site I	Site II	Site I	Site II	Site I	Site II	Site I	Site II	Site I	Site II	Site I	Site II
Control	0	5.70b	5.59b	2.08e	2.02g	0.14e	0.13i	6.50d	4.22c	0.18h	0.26c	0.76d	2.12f	0.50c	0.43h
	4	5.84a	6.71a	2.89b	3.50b	0.16d	0.14hi	8.96b	4.85a	0.20fg	0.52a	1.15b	2.42d	0.57b	1.64b
	8	5.89a	6.78a	2.99b	3.60a	0.16d	0.15gh	9.48a	4.86a	0.25d	0.53a	1.25a	2.42d	0.67a	1.65b
120	0	5.48e	5.59b	2.18cd	2.21e	0.16d	0.20f	6.51d	4.68b	0.19gh	0.29b	0.98c	2.36e	0.49c	0.82g
	4	5.52d	6.65a	2.91b	2.92c	0.18c	0.22e	9.84a	4.89a	0.20e	0.53a	1.18b	2.57c	0.58b	0.84g
	8	5.58d	6.71a	3.01ab	2.30d	0.19bc	0.23d	9.90a	4.89a	0.27c	0.54a	1.26a	2.58c	0.69a	1.20e
90 + 30	0	5.64cd	5.58b	2.21cd	2.20ef	0.18c	0.25c	6.53d	5.25b	0.28c	0.30b	0.77d	2.45d	0.49c	0.99f
	4	5.74b	6.48a	3.07a	3.63a	0.19bc	0.27b	7.70cd	5.77a	0.31ab	0.54a	1.15b	2.78b	0.58b	1.34d
	8	5.76b	6.48a	3.15a	3.68a	0.20b	0.29ab	8.06b	5.79a	0.33a	0.54a	1.17b	2.78b	0.68a	1.64b
60 + 30+30	0	5.74b	5.60b	2.22cd	2.18f	0.19bc	0.29ab	6.60d	5.25b	0.29b	0.32b	0.79d	2.45d	0.50c	1.44c
	4	5.86a	6.44a	3.09a	3.67a	0.22ab	0.31a	9.98a	5.79a	0.32a	0.56a	1.28a	2.86a	0.61ab	1.94a
	8	5.88a	6.48a	3.11a	3.69a	0.23a	0.31a	9.99a	5.80a	0.32a	0.56a	1.29a	2.79b	0.61ab	1.94a

Values followed by similar letters under the same column are not significantly different at P = 0.05 according to Duncan's multiple range test.