Table 1: Physical and chemical properties of soils at experimental sites in Samaru during 2010-2011 and 2011-2012 dry seasons.

Physical properties (%)Year
2010-20112011-2012

Sandy40.044.0
Silt30.331.0
Clay28.725.0
Textural classLoamLoam
Chemical properties
 pH in water5.66.2
 pH (0.0 CaCl2)4.95.3
 Organic carbon (g kg−1)0.720.72
 Available phosphorus (mg kg−1)14.314.3
 Total nitrogen (g kg−1)0.420.52
Exchangeable bases (cmol kg−1)
 Ca++1.801.80
 Mg++0.321.20
 K+0.170.33
 Na++0.250.05
 Exchangeable acidity0.220.19
 CEC8.657.11

Source: analyzed soil samples at Soil science Department’s laboratory, A.B.U., Zaria.