Effect of Urea, NPK and Compost on Growth and Yield of Soybean (Glycine max L.), in Semi-Arid Region of Sudan

Table 1

Full approximate analysis of soil in depth of 30 cm after sowing, season 2010/2011.

Treatments	PH	Ece	Na; meq/L	Ca+mg; meq/L	K; meq/L	CO2; meq/L	HCO3; meq/L	Cl; meq/L	P; ppm	CaCO3	N %	Sand %	Clay %	Silt %
Urea	7.66	2.07	15.50	8.93	0.01	0.30	3.97	15.35	6.00	2.09	0.06	18	60.33	21.67
Compost	7.74	1.94	14.20	8.30	0.03	0.30	4.83	14.23	5.05	2.09	0.07	18	61.50	20.50
NPK	7.79	1.68	11.78	7.98	0.02	0.20	3.98	11.90	5.53	2.32	0.06	17	62.00	21.00
Control	7.74	2.05	14.90	9.10	0.02	0.35	5.35	14.78	4.58	2.31	0.06	17	62.25	20.75
LSD	0.26	0.62	7.38	2.52	0.01	0.28	2.41	6.47	1.94	0.98	0.01	1.92	4.09	2.82
CV%	2.10	19.93	32.74	18.34	42.36	60.98	33.19	28.75	22.89	27.91	14.11	6.87	4.15	8.39
SE+	0.16	0.39	4.61	1.57	0	0.17	1.50	4.04	1.21	0.61	0	1.20	2.55	1.76
Mean before sowing	7.91	1.29	10.88	4.62	0.01	0.02	0.8	10.61	2.4	1.64	0.05	18.3	61.8	19.9

*= significant, **= highly significant, ns = nonsignificant, LSD = least significant difference, CV% = coefficient of variation, and SE± = standard error.