Effects of Nitrogen Application on Growth and Ethanol Yield of Sweet Sorghum [Sorghum bicolor (L.) Moench] Varieties

Table 1

Soil physicochemical characteristics of Ilorin and Ejiba experimental sites.

Parameter	Ilorin	Ejiba
pH	6.20	6.70
Total N (%)	0.16	0.18
Available P (mg kg^−1)	4.51	4.20
Exchangeable K (cmol)	0.52	1.90
Exchangeable Ca (cmol)	1.12	0.32
Exchangeable Mg (cmol)	0.81	0.14
Exchangeable Na (cmol)	0.28	0.82
Exchangeable H^++Al (cmol)	0.21	0.20
ECEC (cmol)	2.94	3.38
Organic carbon (%)	1.43	0.30
Sand (%)	85.52	86.40
Silt (%)	6.00	6.00
Clay (%)	8.48	7.60
Textural class	Loamy sand