Productivity and Water Use Efficiency of Sorghum [Sorghum bicolor (L.) Moench] Grown under Different Nitrogen Applications in Sudan Savanna Zone, Nigeria

Table 1

Physical and chemical properties of the soils (0–20 cm depth) at the experimental sites.

Parameters	BUK		Minjibir
	2014	2015	2014	2015
Soil texture	Sandy loam	Sandy clay loam	Sandy loam	Sandy clay loam
Soil pH value (1 : 2.5 soils : water)	4.86	5.98	5.01	5.75
EC (1 : 2.5 soils : water) (dS/m)	0.083	0.065	0.031	0.035
Soil organic carbon (%)	0.417	0.339	0.196	0.210
Total nitrogen (mg/kg)	311.5	700	163.3	1050
Available P (mg/kg)	2.0	2.612	4.0	3.358
Available K (cmol/kg)	0.396	0.379	0.346	0.390