Table 2.

Characteristics of the soil used in the study

Property	Soil (Field S13)
pHwater	5.4
Organic C (g kg−1)	1.4
Available P (mg kg−1)	10.0
Total P (g kg−1)	0.3
Total N (g kg−1)	0.5
Available nutrient (g kg−1)
K	0.5
Ca	0.4
Mg	0.1
Exch. Acidity (cmol kg−1)	0.4
ECEC (cmol kg−1)	3.5
C:N	2.4
Particle size distribution
Sand (%)	54
Silt (%)	28
Clay (%)	18
Textural Class	Sandy Loam
Cowpea’s rhizobia (cfug−1)	7.5 X 103